Growth and Production of Shallots (Allium ascalonicum L.) Which Was Applied by Trichoderma harzianum Fungus and Tithonia diversifolia Compost
Reski Amalia Nasir1, Elkawakib Syamun2, Katriani Mantja2

1 Master Student, Agrotechnology, Faculty of Agriculture, Universitas Hasanuddin, Jl. Perintis Kemerdekaan KM 10, Makassar 90245, Indonesia
2 Department of Agronomy, Faculty of Agriculture, Universitas Hasanuddin, Jl. Perintis Kemerdekaan KM 10, Makassar 90245, Indonesia

Abstract

Red onion is a horticultural commodity that has a high enough demand that must be cultivated by farmers intensively. This study aimed to examine the effect of Trichoderma harzianum and Tithonia diversifolia compost application on the growth and production of shallots. This research was conducted from October 2021 to January 2022 in Sekkang, Mattiro Sompe, Pinrang, South Sulawesi. The study was conducted by experiment using split plot design in a randomized complete block design which consisted of 2 plot factors such as the Trichoderma harzianum fungus as a main plot with 4 levels of doses, and the sub-plots using Tithonia diversifolia compost with 4 levels of doses. The research was done in three main steps: preparing the media and the material, maintenance and examining the result. The results showed that there was an interaction between the treatment of Trichoderma harzianum 15 g with Tithonia diversifolia compost 3 kg per plot, which gave the best results for plant height (41,78 cm). Then, the application of Trichoderma harzianum 10 g with Tithonia diversifolia compost 3 kg per plot gave the best results on the of tuber fresh weight (89.89 g), tuber dry weight (74.61 g) and production per hectare (18,65 ton).

Keywords: Shallot, Trichoderma harzianum Fungus and Tithonia diversifolia compost

Topic: Crop production system