Increased Yield of Three Shallot Varieties from Seed with Addition of Liquid Organic Fertilizer in the Highlands Agustina E Marpaung*), Bina Br Karo, Susilawati Barus, Rina C. Hutabarat, Rasiska Tarigan, Delima Napitupulu and Perdinanta Sembiring
Research Center for Horticultural and Estate Crop, National Research and Innovation Agency (BRIN) Indonesia
*) Corresponding Author: agus196[at]brin.go.id
Abstract
Shallot is a vegetable commodity that is widely consumed as a spice in cooking, so the need of the consumer is high. To supply this high consumption is needed increased productivity. Productivity can be increased by using varieties suitable for the growing environment, quality seeds, and proper fertilization. One of the uses of quality seeds is from seeds, but to obtain high production from seeds, appropriate fertilization is necessary. The research aimed to determine the use of liquid organic fertilizers and shallot varieties from true shallot seed (TSS) can increase yield in the highlands. This research was conducted in IP2TP Berastagi, Karo Regency, with a height of 1340 meters above sea level and andisol soil type. This research was conducted from May to September 2018. The design used was a factorial Randomized Block Design with 3 replications. The first factor is liquid organic fertilizer (LOF): Without LOF, Rabbit manure LOF, Fish fertilizer LOF, and Fish teillation LOF. The second factor is shallot varieties from seed: Bima, Trisula, and Tuktuk. The results showed that the application of LOF did not affect the growth of shallots from seeds. The Trisula shallot variety from seed can be adapted to grow and produce well in the highlands, while the Tuk-tuk variety is only adapted for growth and the Bima variety is less adaptive for growth and yield. The Trisula shallot variety from seeds given rabbit manure LOF increased the yield by 13.70 - 65.10%. The implication of this research is that the growth and production of shallots will increase in the highlands if there is an interaction between the type of fertilizer and the variety.
