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31	Agriculture engineering	ABS-107
DOWNSCALING OF VEGETATION INDICES FROM MULTI-SATELLITE THROUGHOUT-SEASON MAIZE Muhammad Iqbal Habibie(a*) and Nety Nurda (b) a) National Research and Innovation Agency (BRIN), Cibinong, Indonesia *iqbalhabibie0684[at]gmail.com b). National Resilience Institute of the Republic of Indonesia (LEMHANAS), Jakarta, Indonesia Abstract The growing season phenology Normalized Difference Vegetation Index (NDVI) collected from satellites has been used as a proxy for vegetation biomass production. The MODIS sensors 250-m data have been utilized for terrestrial ecosystem modeling and monitoring. MODIS land surface products are resilient and trustworthy because to their high temporal resolution and wide range of wavelengths. The Landsat 30m produce spatially detailed information for defining human-scale processes and have been employed in studies of land cover and land change. Sentinel-2 is a land surveillance satellite with innovative spectrum capabilities, extensive coverage, and excellent spatial and temporal resolutions. The primary purpose of this work is to create a downscaling vegetation indices (VI) database by combining 250 m MODIS, 30 m Landsat, and 10 m Sentinel 2 data. The most important NDVI indicates the maize growth season in April and August. MODIS, Landsat, and Sentinel 250m derived biophysical information delivers the same biophysical information for moderate-scale biological aspects. This multi-sensor study preserves the comprehensive seasonal dynamic information recorded by MODIS while also using high-resolution data from Landsat, which will be beneficial for regional ecosystem studies. Keywords: MODIS- Landsat- Sentinel 2 - growing season - moving average - NDVI- downscaling- revisit time- vegetation index- 250m Share Link | Plain Format | Corresponding Author (Muhammad Iqbal Habibie)

32	Agriculture engineering	ABS-112
The Performance Comparison of Gasoline and LPG Water Pumps Used in Rice Field in Shallow Groundwater Wells Muh. Rama Pien, Haerani, Ahmad Munir Universitas Hasanuddin Abstract One of technology application in agriculture is the use of water pumping machines to provide water for plants. Various innovations have been made to reduce the operating costs of water pumps. One example is the use of Liquefied Petroleum Gas (LPG) to replace petroleum fuel. This study aimed to compare the performance and efficiency of gasoline and LPG water pumps in rice field. The observation parameters included calculating water discharge, calculating the cost of gasoline and gas fuel used, calculating the power produced by the pump when raising water, and calculating engine torque. The results showed that the water discharge obtained from the gasoline pump engine was 0,002808 m3/second, while for the LPG pump engine was 0,002961 m3/second. The cost required for the operation of the gasoline pump engine was Rp. 23,615/hour, and for LPG gas was Rp. 11,920/hour. In terms of power produced by the pump engine, the gasoline produced 136.322 W, while the LPG produced 144.158 W. The water pump engine operated at a torque of 7,84 Nm. Based on the results of this study, it can be concluded that the use of LPG gas fuel in the rice field water pump engine is more efficient. This LPG pump also resulted in larger water discharge than the gasoline pump. Keywords: Water pump, fuel, water discharge, torque, efficiency Share Link | Plain Format | Corresponding Author (Haerani Haerani)

33	Agriculture engineering	ABS-115
Analysis of the Potential Use of the Midrib of Sago Plants as an Emitter for Drip Irrigation Suhardi (a*), Ahmad Munir (a), Abdul Azis (a), Husnul Mubarak (a), Imastira (b) a) Department of Agricultural Engineering, Faculty of Agriculture, Hasanuddin University, Makassar, 90245. Indonesia. *suhardi[at]unhas.ac.id b) Undergraduate Students at Department of Agricultural Engineering, Faculty of Agriculture, Hasanuddin University, Makassar, 90245. Indonesia Abstract Sago plants in Indonesia cover an area of 2.5 million ha or 50% of the world^s sago land area. The part of the sago plant that has not been used optimally is the midrib. The porous sago palm has the potential to be used as an emitter in drip irrigation. For this reason, research is needed that aims to determine the potential use of the midrib as an emitter of drip irrigation. Analysis of the potential of the midrib as an emitter begins with the measurement of saturated hydraulic conductivity using the falling head method. The value of the hydraulic conductivity corresponds to the emitter, then a drip irrigation test is carried out simultaneously for the three parts of the midrib with the same head pressure to determine the coefficient of variance in the three sections of the midrib. The smallest variance coefficient value indicates that the part has a higher uniformity. The results showed that the end of the midrib has a higher conductivity value than the middle and bottom. In addition, the final section has a coefficient of variance that is smaller than the middle and base sections with coefficients of variance of 26.41, 44.15 and 72.51, respectively. High uniformity at the ends due to compact aggregation. The small value of the coefficient of variation at the tip is an indicator that the tip of the sago palm midrib is the most suitable part to be used as a drip irrigation producer. Keywords: Sago midrib- emitter- Drip irrigation- coefficient of variance Share Link | Plain Format | Corresponding Author (Suhardi Suhardi)

34	Agriculture engineering	ABS-116
Emitter Performance Test of Sago Midmidrib for Drip Irrigation Suhardi (a*), Ahmad Munir (a), Abdul Azis (a), Abdul Waris (a), Harvhianti Haruki (b) a) Department of Agricultural Engineering, Faculty of Agriculture, Hasanuddin University, Makassar, 90245. Indonesia. *suhardi[at]unhas.ac.id b) Undergraduate student, Department of Agricultural Engineering, Faculty of Agriculture, Hasanuddin University, Makassar, 90245. Indonesia Abstract The limited availability of water becomes a problem in meeting the water needs of plants. The selection of water supply techniques effectively and efficiently becomes an important thing. One technique of providing water that is efficient and effective is drip irrigation. In its application, drip irrigation requires an emitter. In general, emitters are made of plastic or other environmentally friendly materials. For this reason, research was carried out to obtain organic emitters with good performance based on a small coefficient of variance. The study was conducted by testing the level of uniformity of the drop at several levels of head pressure which was carried out with five repetitions. The uniformity level indicator is based on the coefficient of variance. The test results show that at low pressure, the coefficient of variance is higher than the higher head. The coefficient of variance testing carried out at head pressures of 34.46 cm, 72.66 cm and 113.30 cm was obtained at 51.24, 43.19 and 25.30, respectively. This value shows that the relationship between head and uniformity coefficient is inversely proportional. The value of uniformity level at high head pressure is better than lower head pressure for the end of the midrib. High uniformity at high heads due to the effect of drop differences caused by differences in emitter density reduced by large pressure. Keywords: Sago midrib- Emitter- Coefficient of variance- Performance Share Link | Plain Format | Corresponding Author (Suhardi Suhardi)

35	Agriculture engineering	ABS-131
Rapid determination of water content in coffee bean using NIR Spectroscopy and MLR method Putri Chandra Ayu (a*), I Wayan Budiastra (b) and Adian Rindang (a) a) Study Program of Agricultural and Biosystem Engineering, Faculty of Agriculture, Universitas Sumatera Utara, Medan, Indonesia. b) Department of Mechanical and Biosystem Engineering, IPB University, Bogor, Indonesia. Abstract Water content of coffee bean is a crucial quality that will affect the whole quality of coffee. In coffee industries, the water content must be below 12.5%. Determination of water content is still using the chemical method such as gravimetry method that can not represent all of the products and need time to determine, so it is not suitable for industries. This study aimed to build a SMLR model to determine the NIR wavelength that can be used to determine water content of coffee beans in a form of green bean. This study used several Indonesia green bean coffee, a NIR wave of 1000-2500 nm, followed by determination of water content using gravimetry method. Result showed that by using several selected NIR wavelength, the water content of green bean coffee can be determined. Keywords: water content, MLR method, NIRS, selected wavelength Share Link | Plain Format | Corresponding Author (Putri Chandra Ayu)

36	Agriculture engineering	ABS-132
Determination of carbohydrate, lipid and protein content in intact coffee beans using NIRS Putri Chandra Ayu (a*), Adian Rindang (a), Nur Ulina Warnisyah Sebayang (b) and Karina Nola Sinamo (c) (a) Study Program of Agricultural and Biosystem Engineering, Faculty of Agriculture, Universitas Sumatera Utara, Medan, Indonesia. (b) Study Program of Agrotechnology, Faculty of Agriculture, Universitas Sumatera Utara, Medan, Indonesia. (c) Study Program of Food Technology, Faculty of Agriculture, Universitas Sumatera Utara, Medan, Indonesia. Abstract Carbohydrate, lipid and protein content is included to the proximate content that affect the quality of coffee bean. Determination of the chemical content is still using the chemical method that spend time, expensive, can not represent all of the products and destructive, so it is not suitable for the needs of coffee industries. This study aimed to build a NIR model to determine the the carbohydrate, lipid and protein content in intact green bean coffee from several origin in Indonesia. This study used green bean coffee from 4 islands in Indonesia to increase the data distribution, a NIR wave of 1000-2500 nm, followed by NIR data pretreatment using multiple scatter correction (MSC), first and second derivative of savitzky golay (dg1 dan dg2), normalization and the combination of dg1+MSC, dg2+MSC, dg1+normalization and dg2+normalization, and determination of the carbohydrate, lipid and protein content using chemical method. Result showed that NIR spectroscopy can be used to determine the carbohydrate, lipid and protein in green bean coffee indicated with high r and RPD value. Keywords: NIRS, chemical data, green bean coffee Share Link | Plain Format | Corresponding Author (Putri Chandra Ayu)

37	Agriculture engineering	ABS-157
Study on The Morphology of Kailan (Brassica oleraceae) Plants Due to a Decrease in Soil Water Content. Sitti Nur Faridah1), Husnul Mubarak1), Tisha Aditya Jamaluddin2), Samsuar Samsuar1) 1Agricultural Engineering Department, Faculty of Agriculture, Universitas Hanasuddin, Makassar, Indonesia. 2Energy Conversion and Conservation Research Center, National Research and Innovation Agency. Jakarta, Indonesia Abstract Brassica oleraceae var. acephala) often also called to as Chinese broccoli or Chinese kale, is included in the group of leaf vegetable plants that have high economic value. Kailan plants contain nutrients that are quite complete and very good for health. In 100 grams of fresh kailan plants contain vitamin A, vitamin B1, fat, calcium, iron, magnesium and phosphorus. Increased air temperature and extreme weather that causes drought have an impact on decreasing food production. The decrease in the availability of soil water content is an environmental condition where plants do not receive sufficient water supply, so that plants cannot carry out the growth and development process optimally. This study aimed to evaluate the growth and yield of kailan plant on dusty clay soil for various field capacity water contents. The application of water supply is carried out at 60%, 40% and 20% of the water content of the field capacity for kailan plants during the growing period to harvest. The results obtained that the water content of field capacity in dusty clay: 36.50%. The decrease in the water content of the field capacity from 60% to 40% and 20% resulted in a decrease in plant growth respectively- plant height 9.07% and 39.95%, leaf area 43.42% and 60.09%, and fresh weight 46.86% and 78.53%. Keywords: : Chinese broccoli, water content, fiel capacity, dusty clay soil Share Link | Plain Format | Corresponding Author (Sitti Nur Faridah Faridah)

38	Agriculture engineering	ABS-161
Grafting Technology Supports Increased Productivity Nutmeg in Indonesia Suryadi R., Trisilawati O., and Darwati I National Research and Innovation Agency (BRIN) Abstract Abstract. Plant material determination is a critical factor in developing an agricultural commodity. If you choose the wrong plant material, especially for annual plants, you will suffer losses such as low productivity. Fixing it will take quite a long time and a relatively high cost. The productivity of Indonesian nutmeg in 2019 was 548 kg/ha, which is considered low compared to other nutmeg-producing countries. One of the reasons is that nutmeg plants are still developed using plant material derived from seeds, causing nutmeg plant flowers on both sides (dioecious) to be classified as male, female, or hermaphrodite. Because the sexes cannot distinguish at the seed stage, nutmeg plantations generally have many male plants (40 percent) that do not bear fruit, while only 5 percent are required to pollinate female flowering plants. The problem of propagation through seed can be solved by grafting. Grafting nutmeg plants has been studied with a high success rate (>80%). Therefore, the sex can be determined at the seed stage based on scion taken from male or female trees. When 95 percent of female and 5% of male plants are planted in the field, the number of plants bearing fruit can be calculated. Fruit is more significant, and productivity is up. Keywords: Technology, Grafting, Nutmeg, Productivity. Share Link | Plain Format | Corresponding Author (Rudi Suryadi)

39	Agriculture engineering	ABS-163
Study on Designing Measurement System of Food Conductivity Based on One-Dimensional Steady State Method 1Rima Zuriah Amdani, 2Andang Widi Harto, 1Aldicky Faizal Amri, 1Anggita Sari Praharasti, 1Asep Nurhikmat, 1Annisa Kusumaningrum, 1Sugeng Hariyadi, 1Ndaru Februanta, 1Siswo Prayogi 1 Research Center for Food Processing and Teknology-National Research and Innovation Agency (PR TPP-BRIN) 2 Department of Nuclear Engineering and Physics Engineering, Faculty of Engineering, Gadjah Mada University, Jl. Grafika No. 2, Yogyakarta, 55281, Indonesia Abstract Measuring the food thermal conductivity is mainly designed to optimize the thermal process such as drying, sterilization, and freezing in a food industry. In this study, a system to measure thermal conductivity of food is designed according to one-dimensional steady state method through Fourier formula. The experiment uses samples consist of rice-based product (rice grain, rice powder, rice flour, cooked rice) and whole milk powder. The analysis will be performed in the range of 15-30 minutes on its steady condition. The results are verified with the literature data and evaluated through degree equivalence calculation. In result, the system can distinguish the samples which has different texture and composition. Furthermore, the system can figure the increasing trend of thermal conductivity with the raise of moisture content. However, in most case, the thermal conductivities of measured samples have higher value compared to the literature data (2-4 times higher). The disparity due to the variation of heating temperature, sample condition, measurement technique, and analysis. Several finding to gain more reliable system can be done by improving the insulation or evaluating the mathematical calculation into a two-dimension approximation. In general, the design is viable to develop as a measurement system for food thermal conductivity. Keywords: Measurement system, Food thermal conductivity, Steady-state, Fourier formula Share Link | Plain Format | Corresponding Author (Rima Zuriah Amdani)

40	Agriculture engineering	ABS-221
The Effect of Biological Fertilizer on Increasing Upland Rice Yield in Rainfed Rice Land in Boyolali Regency Yulis Hindarwati1a), Sri Minarsih1, Agus Supriyo1, Raden Heru Praptana1 and Anggi Sahru Romdon2 1Research Center for Crops, National Research and Innovation Agency. Cibinong Science Center, Jl. Raya Jakarta-Bogor, Cibinong, Kabupaten Bogor-Indonesia 16915 2Research Center for Behavioral and Circular Economic , National Research and Innovation Agency. Gedung Sasana Widya Sarwono Lantai 03. Jl. Gatot Subroto No. 10, Jakarta Selatan-Indonesia 12710 Abstract Low availability of nutrients is an obstacle in increasing rice productivity in rainfed rice field. The application of a combination of biological fertilizers and inorganic fertilizers is known to increase the efficiency of using inorganic fertilizers. This study aims to determine the effect of biological fertilizers on the growth and yield of rice plants in rainfed rice fields. The study was conducted on rainfed rice fields in biofertilizer products were used in this study, namely PR, RC, ST, AGR, BV, AND GLK. The rice variety used is Situ Patenggang. The study used a randomized block design with 9 treatments and each treatment was repeated for 4 times. The nine treatments were: fertilization according to PUTK recommendation (P1)- 1/2 dose of PI (P2): P2 + manure (P3)- P2 + PR (P4)- P2 + RC (P5)- P2 + ST (P6)- P2+AGR (P7)- P2+BV (P8)- P2+GLK (P9). Planting using a 2:1 jajar legowo system with a spacing of 20 x 10 x 40 cm was carried out by direct planting of 4-5 seeds per hole. Biofertilizer application is carried out according to the instructions of each product. Parameters observed included: soil chemical status (N, P, K, C-organic, pH, CEC) before the study- plant growth (plant height, number of tillers and number of productive tillers)- yield (weight of harvested dry grain and dry milled)- and a simple farming analysis was carried out. The results showed that all combinations of biological fertilizers with 1/2 recommended dose were effective in increasing rice yields but it could not match the yield of rice fertilized according to the recommended dose. The combination of fertilization using GLK biofertilizer showed the highest yoield compared to the other biofertilizers with an advantage of 48.05% compared to 1/2 recommended dose of fertilization. Keywords: Upland rice, Situ Patenggang, rainfed rice field, biological fertilizer, fertilizer dose Share Link | Plain Format | Corresponding Author (Yulis Hindarwati)

41	Agriculture engineering	ABS-242
Analysis of Changes in Vegetation Density with Sentinel-2A Image on Malino Sub-watershed Muh. Wahyu Apriliandi(a*) , Daniel Useng(b), dan Suhardi(c) (a*) Student of Agricultural Engineering Study Program, Hasanuddin University, Makassar, 90245, Indonesia. muh.wahyuapriliandinatsir[at]gmail.com (b) Lecturer in Agricultural Engineering Study Program, Hasanuddin University, Makassar, 90245, Indonesia. Abstract Changes in vegetation density, especially in sub-watershed areas, will continue to occur over time. This is due to the increasing number and human activities that have an impact on land use change. The Malino sub-watershed is one part of the Jeneberang watershed, almost all of which is located in Tinggimoncong District. Monitoring of changes in vegetation density in the Malino Sub-watershed is carried out by utilizing remote sensing technology in the form of sentinel-2A imagery and using the NDVI type of vegetation index method. This study aims to determine the distribution and changes in vegetation density in the Malino Sub-watershed in 2017, 2019, and 2021. From the results of the analysis conducted using the NDVI vegetation index, the distribution of vegetation density in the Malino Sub-watershed is divided into 4 classes, namely the non- vegetation, sparse vegetation, medium vegetation, and dense vegetation. Changes in vegetation density that occurred in the Malino sub-watershed from 2017 to 2019, the largest occurred in the dense vegetation density class of 2.21% or 192.69 ha, while the smallest occurred in the non-vegetation density class of 0.24% or 20. 97 ha. Meanwhile, the largest change in vegetation density in the Malino sub-watershed from 2019 to 2021 occurred in the dense vegetation density class of 11.64% or 1,016.60 ha, while the smallest occurred in the non-vegetation density class of 0.12% or 10.46 ha. Keywords: Vegetation Density, NDVI, Sub-watershed Malino, Sentinel-2. Share Link | Plain Format | Corresponding Author (Muh. Wahyu Apriliandi Apriliandi)

42	Biodiversity, soil health and agricultural practices	ABS-258
Indole-3-acetic acid associated with plant-growth promoting microorganisms in response to Arabidopsis seed growth and germination Muhammad Yusril Hardiansyah (a,d*), Vietgar Membalik (b,c), Andi Khusnul Fatima Bahar (c), Novaty Eny Dungga (d) a) Global Agriculture Technology and Genomic Science, International College, National Taiwan University, Taipei 10617, Republic of China, Taiwan *yusrilhardiansyah1[at]gmail.com b) Wageningen University & Research, Droevendaalsesteeg 4, 6708 PB Wageningen, The Netherlands c) Plant Protection Study Program, Faculty of Agriculture, Universitas Hasanuddin, Makassar 90245, Indonesia d) Department of Agronomy, Agrotechnology Study Program, Faculty of Agriculture, Universitas Hasanuddin, Makassar 90245, Indonesia Abstract Plant growth-promoting microorganism as a bacterial group such as PGPR is one of biological pathway which is widely associated with Indole-3-acetic acid (IAA). As the primary member of the auxins, IAA plays an essential role in the response of plant activities, including seed growth and development specifically. Extensive studies have been performed on IAA after its discovery as a plant hormone. It has been found out that different bacteria, fungi and algae are capable of producing physiologically active amounts of IAA and important for plant growth and development. The objective for this research is to decipher whether IAA can affect in seed growth and germination supposed to optimum growth of hypocotyl. By using plant growth-promoting microorganism which was colonized from the bamboo rhizosphere and as IAA^s roles, this group of microorganism was also coated into the seed of arabidopsis before germinate in the MS medium. The parameter observations include Seed germination rates and periods, the average number of seed germination, abnormal seed, hypocotyl growth with three biological replicates. The form of Tukey^s test (one-way ANOVA) with SD was used as statistical analysis. The results shown IAA was successfully increased seed germination rates during 24, 48, 72, 96, 120, 144 hours, by longer period, also successfully increased the germination rate until 5 days. Furthermore IAA also reduces abnormal seeds (5%), increased the number of seed germination, and enhanced hypocotyl growth in average. To sum up this study, IAA successfully involved in seed germination and enhance seed growth after coated. Consequently, IAA plays an important role in response to seed growth and germination in Arabidopsis. Keywords: Indole-3-acetic acid (IAA), seed germination, growth, arabidopsis Share Link | Plain Format | Corresponding Author (Muhammad Yusril Hardiansyah)

43	Biodiversity, soil health and agricultural practices	ABS-11
The Effect of Bioactivator Formulation On Nutritional Quality And Functional Microbial Content In Goat Feces Biofertilizer Ari Istanti, Aldy Bahaduri Indraloka, Abdus Salam Junaedi, Sefri Ton Banyuwangi State Polytechnic, Trunojoyo University Abstract Changes in lifestyle and the negative impact of chemicals make people aware of the dangers of consuming food products that contain chemical residues, so that many people switch to consume organic food. Black rice is one of the kinds of rice that it starts to be widely has consumed as organic functional food because of its antioxidant and dietary fiber content. Black rice rarely has cultivated because it longer harvests age and lower productivity than white rice. The way to increase the production and quality of black rice is by apply manure or biofertilizer which contains the nutrients needed by plants. This study aimed to find bio activator formulation that has the highest nutrients and functional microbes content in biofertilizer. This study used a completely randomized design with 5 bio activator treatments: Bacillus (B1)- Trichoderma (B2)- Saccharomyces (B3)- Bacillus + Trichoderma (B4), Bacillus + Saccharomyces (B5) which have replicated 3 times. The results showed that the bio activator formulation had a significantly effect on the total bacteria, very significantly effect on the organic C content, total N-fixing bacteria, P solubilizing microbes, N and P content. Keywords: functional food, functional microbe, nutrient quality, organic Share Link | Plain Format | Corresponding Author (Ari Istanti)

44	Biodiversity, soil health and agricultural practices	ABS-17
Assessment of Carbon and Nitrogen Distributions on Several Soil Orders for Sustainable Management in Dryland Farming: (Case Study in Aceh Besar Regency, Indonesia) S. Sufardi (a*), T. Arabia (a), K. Khairullah (a), M. Khalil (a), I. Ilyas (a), M. Rusdi (a) Z. Zainabun (a) UH. Abdullah (b) a) Department of Soil Science, Faculty of Agriculture, Universitas Syiah Kuala, Jalan Tgk. Hasan Krueng Kalee 3, Darussalam, Banda Aceh 23111. Indonesia *sufardi_usk[at]unsyiah.ac.id b) Akademi Politeknik Venezuela, Aceh Besar. Jalan Blang Bintang Lama, Aceh Besar, Indonesia. Abstract The study was based on the distribution of soil carbon and nitrogen orders in a dry land farming system in Aceh Besar District, Indonesia. Soil samples were taken representing 6 (six) soil orders in the drylands of Aceh Besar, namely: Andisols, Entisols, Inceptisols, Mollisols, Oxisols, and Ultisols. For each soil order, 5 observation profiles were made, and each soil profile was taken seven soil samples at the depths of 0-0.05 m- 0.05-0.10 m- 0.10-0.20m- 0.20-0.30m- 0.03-0.50m- 0.05-0.70 m- and 0.07-1.00 m so that there are 210 soil samples. Analysis of soil C was carried out using the Walkley & Black method, while the total N of the soil was using the Kjeldahl method. The total C and N content of the soil in the dry land of Aceh Besar varies greatly depending on the soil order. The highest distribution of C and N in the soil profile is found at a depth of 0.10-0.30 m. Soil C and N content at a depth of 0-1.0 m in the Andisols order are higher than other soil orders. The C content of the topsoil (0-30 cm) ranged from 0.7-6.9% while the N content varied from 0.07-0.56%. The order of N and C content of soil according to soil order is: Andisols>Mollisols>Entisols >Inceptisols>Oxisols>Ultisols. Keywords: Dryland farming- Soil order- Organic carbon- N total Share Link | Plain Format | Corresponding Author (Sufardi Sufardi)

45	Biodiversity, soil health and agricultural practices	ABS-283
CHARACTERIZATION OF RHIZOSPHERE FUNGI OF THE EBONY PLANT (Diospyros celebica Bakh.) WHICH HAS THE POTENTIAL TO PRODUCE IAA AND GA PHYTOHORMONES Shicilia, Siti Halimah Larekeng, Mukrimin, Gusmiaty, Sukriati Andesti Lamanda, Muh. Restu 1)Undergraduated Faculty of Forestry, Hasanuddin University, Jl. Perintis Kemerdekaan No. 10, Zip Code: 90245 2)Faculty of Forestry, Hasanuddin University, Jl. Perintis Kemerdekaan No. 10, Zip Code: 90245 3)Postgraduated Faculty of Forestry, Hasanuddin University, Jl. Perintis Kemerdekaan No. 10, Zip Code: 90245 4)Vocational Faculty, Hasanuddin University, Jl. Perintis Kemerdekaan No. 10, Zip Code: 90245 Abstract Ebony (Diospyros celebica) is a slow-growing species that is an impacting factor in the extinction of this species. Efforts to reduce the ebony population can be performed by employing microbes to stimulate ebony growth. This study aimed to obtain bacterial isolates with the potential of producing IAA and GA3 that can be further utilized as biofertilizer agents. Research stages encompassed soil sample isolation, isolation of bacteria, and analysis of IAA and GA3. The research was in complete randomized design (CRD). Thirteen isolates were successfully purified and analyzed with their IAA and GA3 hormones. The highest IAA concentrations were observed in EP1b at 48 incubation hours (44,39 ppm), EP3d at 72 incubation hours (34,93 ppm), and EP3c at 72 incubation hours (34,48 ppm). EP2c, EP2e, and EP2a produced the highest GA3 concentration at 24 incubation hours which were 3,88 ppm, 3,88 ppm, and 3.81 ppm, respectively. Keywords: Rhizosfer Bacteria, GA3, IAA, Eboni, Microba Share Link | Plain Format | Corresponding Author (Siti Halimah Larekeng)

46	Biodiversity, soil health and agricultural practices	ABS-284
Analysis Of Land Potential For Rainfed Rice Development Based On SPKL Application N Juita, N Islamiah, M F Murti, N S Iqbal Department of Soil Science, Faculty of Agriculture, Hasanuddin University Abstract Rice is a very important because it is a source of carbohydrates besides corn, sago, wheat, cassava and taro. Paddy produces rice which many Indonesians use as their daily staple food. Bantaeng Regency is one of the regencies that has developed a lot of rice commodities. However, this commodity has experienced a decrease in harvested area and production from year to year for the last 3 years, thus attracting attention to assessing the land suitability of the area. The stages of this research are: 1) Collection of secondary data and base maps such as climate data, administrative maps, geological maps, soil type maps and land use maps, 2) Making land unit maps from the base map overlays, 3) Survey introduction, 4) Sampling and analysis of soil samples in the laboratory, 5) land potential assessment. The method used in this research is quantitative analysis using the SPKL application (land suitability assessment system) version 2.0. The research results obtained are land suitability class S3 (according to marginal) at all observation points of the soil profile with the limiting factor of base saturation on all soil profiles as well as P2O5 and K2O on profile 2. Limiting factors such as base saturation, P2O5 and K2O can be overcome by liming, fertilization and organic addition Keywords: land suitability, rainfed, rice, land evaluation Share Link | Plain Format | Corresponding Author (nirmala juita)

47	Biodiversity, soil health and agricultural practices	ABS-41
The Diversity of the Subterranean Termites in the Residential Areas, Bogor, West Java Arinana Arinana(a*), Mohammad M. Rahman (a), Rian Perdana (a), Sulaeha (b) (a) Forest Product Department, Faculty of Forestry and Environment, IPB University, Bogor, 16880, West Java, Indonesia (b) Faculty of Agriculture, Universitas Hasanuddin, Makassar, South of Sulawesi, Indonesia Abstract The increasing need for residential areas in Bogor is changing the environmental conditions which eventually affect the presence of the pests, especially the subterranean termites. This study aimed to identify the subterranean termites and their diversity in Bogor, to determine the soil characteristics and the weather, and to assess the damage intensity and the attack frequency. The study was conducted in 12 sample villages. After hot vapor pressure treatment (105 &#8451-, 1 bar, 5 hours), a total of 25 pine wood samples (2 x 2 x 46 cm) were installed in each sample village. The soil samples were obtained from each village, while the weather was measured in one (1) village only. The results showed that there were three (3) subterranean termite species found in the residential areas in Bogor, namely Microtermes sp., Macrotermes sp., and Schedorhinotermes sp., with Microtermes sp. as the dominant species. The soil characteristics and the weather in the areas were found suitable for termites^ life. The attack frequency of termites was 38% (high), whereas the intensity of wood damage was 6-9. Keywords: attack frequency, damage intensity, soil characteristics, Pinus merkusii, steam pressure hot Share Link | Plain Format | Corresponding Author (Arinana Arinana)

48	Biodiversity, soil health and agricultural practices	ABS-303
Exploration of Mahogany and Cocoa Rhizosphere Fungi as Agroforestry Land Cover in Herlang District, Bulukumba Regency Bau Mirta, Tutik Kuswinanti and Burhanuddin Rasyid Agricultural Systems Study Program, Graduate School, Hasanuddin University Abstract Abstract. Herlang District has an agricultural cultivation area of 6,160.10 Ha and consists of various land management systems, such as paddy fields, not paddy fields (corn and green beans), plantation potential (cashew, mahogany, and cocoa) (BPPD, 2020), as well as in Herlang District has various agroforestry land management. Agroforestry is an effort to increase biodiversity without the exception of soil microbes such as fungi which stimulate soil biological activity. This study aims to identify rhizosphere fungi from two different plant vegetation as agroforestry land cover. The research method used was the isolation of the fungus using a 10-2 dilution technique , as well as the identification of the fungus based on its macroscopic and microscopic forms. Exploration results of mahogany and cocoa rhizosphere fungi as agroforestry land cover in Herlang District, Bulukumba Regency, obtained 3 4 isolates consisting of 5 genera, namely, Aspergillus sp., Fusarium sp., Penicillium sp., Rhizopus sp., and Trichoderma sp. Keywords: agroforestry, biodiversity, rhizosphere fungi Share Link | Plain Format | Corresponding Author (BAU MIRTA MIRTA)

49	Biodiversity, soil health and agricultural practices	ABS-48
The Intensity of Adoption of Innovation on Coffee People^s Plantations Muhammad Ikbar Ashadi (a), Sitti Bulkis (b*), Muhammad Hatta Jamil (b), and Rahmadani (b) a) Agriculture Science Program, Graduate School Hasanuddin University, Perintis Kemerdekaan Street Km 10, Makassar 90245, Indonesia b) Department of Socio-Economic Agriculture, Faculty of Agriculture Hasanuddin University, Perintis Kemerdekaan Street Km 10, Makassar 90245, Indonesia, *bulkisd[at]yahoo.com Abstract Coffee is Indonesia^s mainstay commodity- in addition to its benefits, it can help in improving the economy, and it can also contribute to increasing the country^s foreign exchange. This study aims to develop previous research on evaluating the intensity of adoption studies in coffee plantations. The study was conducted in Enrekang Regency in February 2022 using a survey method with a quantitative approach. The research data was obtained through in-depth interviews with 347 farmers, and then the data were analyzed using the formula for calculating the adoption intensity. The results show that the passion of coffee farmers in Enrekang Regency is still not optimal in the application of technology adoption and has not been by the recommendations in the Coffee GAP guidelines. Farmers perceive that the adoption of technology will have a detrimental impact, even though the technology is assumed to increase the productivity of their coffee plants. Farmers have strong enough reasons for rejecting a technological innovation, including more time and labor required, and technology maintenance must be carried out regularly. Keywords: Agriculture, Technology, Coffee, Good Agriculture Practices, Adoption, Innovation Share Link | Plain Format | Corresponding Author (Muh. Ikbar Ashadi)

50	Biodiversity, soil health and agricultural practices	ABS-53
Seasonal Diversity and Distribution of Decomposing Macrofungi in Three Forest Communities: Why do they differ? Putu Supadma Putra (a*), Amran Achmad (b), Toshihiro Yamada (c) Putu Oka Ngakan (b) a) Department of Agricultural Sciences, Postgraduate School, Universitas Hasanuddin, Jl. Perintis Kemerdekaan KM. 10, Makassar 90245, South Sulawesi, Indonesia. *Email: putraps19p[at]student.unhas.ac.id b) Forest Conservation Study Program, Faculty of Forestry, Universitas Hasanuddin, Jl. Perintis Kemerdekaan KM. 10, Makassar 90245, South Sulawesi, Indonesia. Tel./fax.: +62-411-589592. c) 3. Graduate School of Integrated Sciences for Life, Hiroshima University 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan Abstract This study aimed to reveal the inter-seasonal diversity of macrofungal species in three forest communities in South Sulawesi: Karst forest, Lowland forest, and Pine forest. Field surveys were carried out twice (i.e. in the wet and dry seasons) in 25 units plots measuring 10 m x 10 m which were systematically spread in an area of approximately 1 ha in each forest community. The macrofungi found in each plot were recorded by the species name, photo, and the area of cover that measured using Crown Diameter Method to analyse the area of cover. In total there were found 130 species of macrofungi from 38 families across forest communities both in wet and dry seasons. The highest number of macrofungi species was found in the Lowland forest (67 species), followed by Karst forest (65 species), and the lowest was in Pine forest (42 species). Some species are specialists in specific forest communities. Given that most species of macrofungi are monophagous that specialist to an only litter of one tree species, the difference in the diversity of macrofungi among forest communities is likely related to the difference in tree species diversity among forest communities. In addition, microhabitat conditions were found in line with the diversity of macrofungal species inter-seasons and inter-forests. Keywords: Cover area, Diversity, Karst forest, Lowland forest, Pine forest Share Link | Plain Format | Corresponding Author (Putu Supadma Putra)

51	Biodiversity, soil health and agricultural practices	ABS-55
AGRICULTURE SYSTEM AND BIORESOURCES UTILIZATION IN VILLAGES AROUND BOGANI NANI WARTABONE NATIONAL PARK: A CASE STUDY OF ILOMATA VILLAGE, GORONTALO Terri Repi (1*), Sri Dewi Jayanti Biahimo (2,4), Indri Afriyani Yasin (3), Meity Melani Mokoginta (3), Mohamad Ervandi (1), Susan Mokoolang (1), Yusriyah Atikah Gobel (3) (1) Department of Animal Husbandry, Universitas Muhammadiyah Gorontalo. Jl. Prof. Dr. H. Mansoer Pateda, Gorontalo 96181, Gorontalo, Indonesia. Tel./fax.: +62-271-663375. *email: terrirepi[at]gmail.com (2) Department of Islamic Education Management, IAIN Sultan Amai Gorontalo, Jl. Gelatik No. 1, Kota Gorontalo. (3) Department of Agribusiness, Universitas Muhammadiyah Gorontalo. Jl. Prof. Dr. H. Mansoer Pateda, Gorontalo 96181, Gorontalo, Indonesia. (4) Jaring Advokasi Pengelolaan Sumberdaya Alam Gorontalo, Jl. Jakarta No.1b, Dungingi, Kota Gorontalo. Abstract It is a common trait for villages surrounding conservation areas to be dependent on the forest ecosystem for food and economic needs. This is also the case for Ilomata Village, a village bordering the Bogani Nani Wartabone National Park. This study aims to identify agricultural systems, bioresources utilizations, ecological threats and the potential development of an ecologically based agricultural system in Ilomata Village, Gorontalo Province. Data were collected using in-depth interviews, participatory observations, and focus group discussions. Further, descriptive statistics are utilized to analyze the data. The result shows two forms of agriculture. First, the monoculture system is characterized by one main commodity (corn). Second, the polyculture system is characterized by a combination of crops, plantations, forestry, and livestock. For the bioresources^ utilization, as many as 79 species of vegetation were used by the community. This study also notes the forms of utilization that have the potential to threaten the ecosystem, as well as several potentials that can be developed. This study concludes that although there is an ecological-based agriculture system in Ilomata Village, it has not been implemented optimally by utilizing the existing potential. The result implies that it can be used to determine an ecologically-based agriculture intervention model. Keywords: Agriculture systems, Bioresources utilizations, Conservation, Ecologically-based agriculture Share Link | Plain Format | Corresponding Author (Terri Repi)

52	Biodiversity, soil health and agricultural practices	ABS-73
Impact of urbanization on the ant diversity: a case study on teak plantation in South Sulawesi, Indonesia Faiz Nashiruddin Muhammad (a), M. Bayu Mario (b*), Hagus Tarno (a), Yogo Setiawan (a), Asri Ainun Amaliah (b), Nur Indah Sari (b), Muhammad Alifuddin Achmad (b), Lekhnath Kafle (c) a) Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya, Jalan Veteran Malang 65145, Indonesia b) Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Hasanuddin, Jalan Perintis Kemerdekaan Km. 10 Makassar 90245, Indonesia c) Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, 1 Shuefu Road, Neipu, Pingtung 912, Republic of China (Taiwan) *) bayumario[at]unhas.ac.id Abstract Ant communities can play an important role in a teak agroecosystem. However, ant diversity can be affected by urbanization. The purpose of this study was to determine the diversity and composition of ants in teak plantations in urban and rural areas. This study was conducted in July 2022 at three plantations in two regencies (Gowa and Maros) and one city (Makassar) in South Sulawesi, Indonesia. Gowa and Maros are located in rural areas while Makassar is located in urban areas. Ants were sampled using a pitfall canopy. At each plantation, 20 trees were sampled randomly for pitfall installation. Ants were identified to the genera level and morphospecies. Ant^s diversity was analyzed using the Shannon Wiener, Simpson, and Evenness index and analysis of dissimilarity (Anosim). Total 273 individual ants samples were collected from 10 species and four subfamilies from three teak plantations in South Sulawesi. Crematogaster sp.1 was the most abundant ant among all the collected samples. Based upon the different indexes, the highest ant diversity was found in Gowa followed by Maros, while the lowest diversity was found in Makassar. The level of ant dominance in Makassar was higher than other two studied areas. The highest species evenness index was also found in Gowa and followed by Maros. The species composition in the three teak plantations was also not similar. Each location had their unique species composition than the other locations. This indicated that urbanization causes negative impacts on ants diversity and evenness as well as increase the dominance of ant species in teak plantations. Keywords: Abundance- Pitfall canopy- Rural area- Similiarity- Urban area Share Link | Plain Format | Corresponding Author (M. Bayu Mario)

53	Biodiversity, soil health and agricultural practices	ABS-80
Phenotypic Variation of Local Rice in West Java, Indonesia Iskandar Ishaq (1*), Rahma Ayu Priani (2), Muhammad Luthfan Haziman (3), Zuraida Yursak (1), Yanto Surdianto (1), I Gusti Komang Dana Arsana (1), Agus Ruswandi (4), Nana Sutrisna (1), Aji Winara (4), Abdul Azis (1) Muhammad Abdillah Hasan Qonit (3) 1 Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency Republic of Indonesia (BRIN). *iskandarishaq[at]yahoo.co.id 2 West Java Assessment Institute for Agricultural Technology (BPTP Jawa Barat), Indonesia 3 Department of Food Industrial Technology, Faculty of Agro-Industrial Technology, University of Padjadjaran, Indonesia 4 Research and Development Agency of West Java Province (BP2D), Indonesia. Abstract Rice is the leading staple food in Indonesia and one of the largest production centers in West Java Province. Of the wide local varieties of rice in West Java, only a few have been inventoried and characterized for their morphological characteristics. This study aims to determine West Java^s phenotypic diversity of rice plants. Inventory and morphological characterization of local rice plants was carried out from 2018 to 2021 in seven districts in West Java (Sukabumi, Subang, Cianjur, Sumedang, Bogor, Tasikmalaya, and Bandung). A total of 30 accessions of local rice were observed based on Rice Descriptors. Data analysis used Principal Component Analysis (PCA) and Cluster Analysis with Minitab 21. The results showed that the seven main components contributed to the proportion of diversity of 83.7%. The local rice varieties in the five groups had a degree of similarity of 30%. The characters of leaf blade length, ligule length, ligule color, stem diameter, panicle extrusion, and the presence of awn contributed the most to the total diversity. Keywords: Plant Genetic Resources- Local Rice- Phenotypic- Diversity Share Link | Plain Format | Corresponding Author (Muhammad Iskandar Ishaq)

54	Biodiversity, soil health and agricultural practices	ABS-97
Herbivores Insect Biodiversity In The Rice Organic and Inorganic Sri Nur Aminah (a*), Fatahuddin (a), Ani Nurhidayat (a) a) Plant Pests and Diseases Department, Faculty of Agriculture, Hasanuddin University. Jl. Perimtis Kemerdekaan KM. 10 Tamalanrea Makassar 90245 Indonesia *srifirnas[at]gmail.com Abstract Since many years, presence and activities of herbivorous insect very crucial in the agricultural ecosystem. Purpose of the research is to study biodiversity herbivores insect in rice organic and inorganic. The places used in the research divided into organic and inorganic rice field with measurement 25 m x 25 m, respectively. The insect samples collected used ubinan system methods with diagonal intersection applied for sweep net, pitfall trap and yellow trap. The samples from organic and inorganic rice analyzed Shannon-Wiener Index. The result of Shannon-Wiener Index was showed the higher number of herbivore insects in the inorganic rice field (H^ = 1.71) with population of herbivores about 391 individual (51%). In contrast, result of organic rice field (H^ = 1.68) lower than inorganic. Also, population of herbivores insect 372 individual (49%). The rice harvest was higher in the organic rice field (297 kg) than in the inorganic (279,2 kg). Keywords: Biodiversity, herbivores insect, organic, inorganic Share Link | Plain Format | Corresponding Author (Sri Nur Aminah)

55	Biodiversity, soil health and agricultural practices	ABS-102
30 Years Trend of Peatland Utilization in Riau Province Rudy Haryanto (a*), Suwondo (b), Juandi (c), Sofyan Husein Siregar (d) a) Doctoral Program in Environmental Sciences, Riau University, Pekanbaru, Indonesia *rudy.haryanto[at]staff.unri.ac.id b) Center for Environmental Science Studies, Riau University, Pekanbaru, Indonesia c) Faculty of Mathematics and Natural Sciences, Riau University, Pekanbaru, Indonesia d) Faculty of Fisheries and Marine Sciences, Riau University, Pekanbaru, Indonesia Abstract Peatland as a type of wetland ecosystem that is easily damaged. Damage to peatlands is generally caused by various types of unmanaged land use. The linear increase in the number and needs of the population has actually triggered the conversion of peatlands every year. This study reveals facts in an exploratory descriptive manner on the trend of peatland use in Riau Province from 1990-2020. Determination of the type of land use is based on changes in the condition of the peatland cover derived from Landsat images. The analysis was carried out with a spatial approach with overlay techniques using geographic information system applications. The results of the analysis found that the area of forest cover on peatlands in Riau Province has experienced a very large decrease from 71.71% to 35.93%. The rate of decline in forest cover area to non-forest is around 59,311.65 ha/year. The use of peatlands for cultivation activities continued to increase over the previous 30 years, from 28.29% to 64.07%. The largest utilization came from plantation activities by 44.48%. This value is very large compared to other activities such as dry land agriculture, rice fields, open land, settlements, infrastructure, mining, swamps, scrub bushes, and transmigration. This shows that plantation activities have dominated the use of peatlands, even faster than the expansion of residential areas. So that the priority of efforts to protect and manage peatlands is largely determined by the success of sustainable plantation management. Keywords: Land use, Peatland, Riau Province Share Link | Plain Format | Corresponding Author (Rudy Haryanto)

56	Biodiversity, soil health and agricultural practices	ABS-109
Male Magelang Ducks Performance on Grower Phase Fed By Probiotics Bacillus amyloliquefaciens and Jengkol Bark Extract (Archidendron jiringa) in Water Mikael Sihite (a*), Pradipta Bayuaji Pramono (a), Mohamad Haris Septian (a), Natalia Dewi Setyowening (a) Animal Science Department, Faculty of Agriculture, Tidar University Jalan Kapten Suparman 39, Magelang Utara, Magelang, Central Java, 56116, Indonesia *mikael.sihite[at]untidar.ac.id Abstract This research was conducted to find out the effect of probiotic bacteria Bacillus amyloliquefaciens as proteolytic bacteria and jengkol bark extract (Archidendron jiringa) on the productivity of male magelang ducks. The treatments in this study were given through water. The treatments in this study were: P0 = Water (without the addition of probiotics and jengkol bark extract- P1 = Water with the addition of 0.5% probiotics + 0.05% jengkol peel extract- P2 = Water with the addition of 1% probiotics + 0.1% jengkol peel extract- P3 = Water with the addition of 1.5% probiotics + 0.15 jengkol peel extract- P4 = Water with the addition of 2% probiotic + 0.2% jengkol peel extract. Data obtained were analyzed by ANOVA and continued by Duncan^s Multiple Range Test if the results were different. The results showed that the administration of Bacillus amyloliquefaciens and jengkol bark extract had no significant effect on feed intake, water intake, daily weight gain, body weight, and feed convertion of male magelang ducks. It is concluded that administration of probiotics Bacillus amyloliquefaciens did not improve the performance of male magelang ducks. Further research is needed on the effectiveness of probiotic bacteria in the instestinal of male magelang ducks Keywords: Probiotics, Bacillus amyloliquefaciens, magelang duck performance, jengkol bark extract Share Link | Plain Format | Corresponding Author (Mikael Sihite)

57	Biodiversity, soil health and agricultural practices	ABS-126
Integrated Weed Control Alternative with Cowpea for Improving Soil Properties Nursaadah (1*), Wida Akasah (1), Aidil Putra (1), Dimas Pratama Toti (1) Agriculture Faculty of Universitas Sumatera Utara, Medan, Indonesia Abstract Cover crop (CC) is one of the strategies to improve soil quality, either physically, chemically, or biologically and reduce herbicide use. One of CC that is able to survive in a tropical climate and is able to grow well in soil conditions with moderate to low fertility is cowpea. This study aims to examine the benefits of using cowpea as CC in improving soil quality. This research will be conducted with experimental method. This study used a randomized block design with 2 factorials. The first factor is weed control technique (P), with levels: without control (P0), cover crop (P1), pre-growing herbicide (P2), post-growing herbicide (P3), and free of weeds (with weeding) (P4 ). And the second factor is the tillage technique (T), namely: no tillage (T0) and conventional tillage (T1). Based on the research conducted, it was found that the combination of using CC (P1) and no tillage (T0) was able to improve soil quality in the form of pH H2O, texture, C-organic, N-total, P-available, CEC, total microbes. Keywords: Cowpea, Cover Crop, Integrated Weed Control, Tillage Technique, Soil Properties Share Link | Plain Format | Corresponding Author (Nursaadah Nursaadah)

58	Biodiversity, soil health and agricultural practices	ABS-135
Application of Nano Silicon Fertilizer in Agricultural Sustainability (A Review) Mirawanty Amin, Nirmala Juita, Asnawi Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency of the Republic of Indonesia, Cibinong Science Center, Jl. Raya Jakarta - Bogor, Km 46 Cibinong-Bogor, West Java 16911, Indonesia1 Department of Soil Science, Faculty of Agriculture, Hasanuddin University, Perintis Kemerdekaan Street Km. 10, Makassar 90245 Indonesia2 Research Center for Horticulture and Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency of the Republic of Indonesia, Cibinong Science Center, Jl. Raya Jakarta - Bogor, Km 46 Cibinong-Bogor, West Java 16911, Indonesia3 Abstract Silicon (Si) is a beneficial element for plants because it has many benefits in increasing plant growth and yields. However, the use of silicon as fertilizer is currently still very limited, so the use of fertilizer is a major concern given a large number of uses of silicon for plants. Today, recent advances in nanotechnology have opened new avenues for plant improvement, wherein plants can derive benefits associated with Si nanoparticles. Several studies have demonstrated the positive effects produced by the utilization of Si nanoparticles. Nanotechnology is expected to be able to answer the challenges of using environmentally friendly fertilizers and high efficiency of nutrient use. The use of nano fertilizers opens up new approaches to precision farming and sustainable agriculture. This paper will discuss the application of silicon nanoparticles in plant growth and plant productivity. Keywords: efficiency,nano, productivity, silicon, sustainability Share Link | Plain Format | Corresponding Author (Mirawanty Amin)

59	Biodiversity, soil health and agricultural practices	ABS-143
A Meta-Analysis of Substrate Protein on the Nutrient, Macro Mineral, and Amino Acid Profiles of Maggots (Hermetia illucens) Ki Ageng Sarwono(1,3), Rakhmad Perkasa Harahap(2,3), Pamungkas Rizki Ferdian(1), Avry Pribadi(1), Eyet Mulyati(1), Herman Sari(1), Heru Ponco Wardono(4,5), Lincah Andadari(1), Retno Agustarini(1), Rusli Fidiyanto(1,6), Septiantina Dyah Riendriasari(1), Tri Hadi Handayani(1), Yetti Heryati(1), Novia Qomariyah(2,4), and Mohammad Miftakhus Sholikin(2,4,*) (1) Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong 16915, Indonesia (2) Animal Feed and Nutrition Modelling Research Group (AFENUE), IPB University, Bogor 16680, Indonesia (3) Study Program of Animal Science, Faculty of Agriculture, Tanjungpura University, Pontianak 78124, Indonesia (4) Research Group of The Technology for Feed Additive and Supplement, Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Gunungkidul 55861, Indonesia (5) Department of Animal Nutrition and Feed Science, Faculty of Animal Science, Universitas Gadjah Mada, Sleman 55281, Indonesia. (6) Study Program of Nutrition and Feed Science, Graduate School of IPB University, Bogor 16680, Indonesia *mohammad.miftakhus.sholikin[at]gmail.com Abstract The protein content of the substrate affect the nutritional composition of maggots (Hermetia illucens). This study aimed to summarize and confirm a wide range of findings about the effect of the substrate protein on the proximate analysis, chitin, macro minerals, and amino acids of maggots. The data for this meta-analysis was acquired from papers indexed by Scopus throughout the past decade. The selection and compilation of data followed the PRISMA-P. Metadata was composed of 37 columns and 55 rows (total 1,567 raw data). Each piece of data acquired was converted into a standard unit, which was transformed into a percentage of dry matter basis. The substrates protein concentration was used to define the fixed factor, whereas several studies were incorporated as the random factor. The high protein content (for increase in 1 %) of the substrate resulted in a significant (P<0.05) increase in dry matter (0.308 %) and a decrease in the neutral detergent fiber (0.789 %) but did not affect the macro minerals content of the maggots. The predominant characteristics of essential and non-essential amino acids increased significantly (P<0.05) whenever the protein quantities (1 % of dry matter basis) are added to the substrate. This means that the protein content of the substrate made the amino acid profiles of the maggots better. Keywords: Essential amino acids - Hermetia illucens - Macro mineral - Meta-analysis - Neutral detergent fiber Share Link | Plain Format | Corresponding Author (Mohammad Miftakhus Sholikin)

60	Biodiversity, soil health and agricultural practices	ABS-146
Registration Certificate For Local Variety of Curly Red Chili Pengkol Jati From Grobogan, Central Java, Indonesia Intan Gilang Cempaka1, Arif Susila1, Jajuk Aneka Beti1 1Research Center for Horticultural and Estate Crops, National Research and Innovation Agency. Cibinong Science Center, Jl. Raya Jakarta-Bogor, Cibinong, Kabupaten Bogor-Indonesia 16915 Abstract Pengkol Jati curly red chili is a local variety of chili from Grobogan Regency, Central Java that has been grown by farmers for decades. A certificate of ownership of local varieties issued by Center for Crop Variety Protection and Agricultural Licensing, Ministry of Agriculture of Republic Indonesia is very important to protect the variety from illegal name and to meet the requirements for the release of varieties. The primary requirement to get the certificate of ownership is morphological identification, which was conducted in February to April 2020 in Pengkol Jati village, Grobogan regency. The character observed include external appearance of tree (height, growth, head shape, crown, branching, color on the book, canopy, stem shape and color), leaves (shape, size, direction, leaf color, size and color petiole, wax layer), flower (color of flower- stem- and flower crown, stain, petals, pistil head, position and angle of flower stalk, number of flower per node, flowering schedule, time of flower to fruit,), fruit (color, size, shape, skin and flesh thickness, fruit weight, seed color, shape, and size), and general data. The morphological characteristics and general data were noted and organized in the form of a standard blank, and registered to Center for Crop Variety Protection and Agricultural Licensing to get a Certificate of Ownership of Local Varieties. Result of the experiment revealed that in 18 December 2020, a Certificate of Ownership of Local Varieties of Pengkol Jati curly red chili numbered: 1609/PVL/2020 was issued and submitted to local government of Grobogan regency. Keywords: curly red chili, local variety, certificate of ownership Share Link | Plain Format | Corresponding Author (Intan Gilang Cempaka)

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