THE SUITABILITY OF DIFFERENT SOURCES OF BIOFERTILIZERS TO SUPPORT SUSTAINABILITY OF ORGANIC VEGETABLES PRACTICE IN BENGKULU PROVINCE OF INDONESIA

Handajaningsih, Merakati and Usman , Siswanto and Teguh , Adiprasetyo and Hidayat , Hidayat and Bambang , Purnomo and Marwanto, Marwanto and Lisa, Nuri THE SUITABILITY OF DIFFERENT SOURCES OF BIOFERTILIZERS TO SUPPORT SUSTAINABILITY OF ORGANIC VEGETABLES PRACTICE IN BENGKULU PROVINCE OF INDONESIA. In: Proceeding ISEPROLOCAL. Badan Penerbitan Fakultas Pertanian Universitas Bengkulu, Bengkulu, Indonesia, pp. 250-253. ISBN 9786029071184

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Abstract

Chili pepper (Capsicum annuum)and pakchoy (Brassica rapa) are among two Indonesian popular vegetables which are different in economical plant part of organs (fruit and leaf) and time to harvest (150 and 40 days after planting). Four different formulas of bio-fertilizers were applied in this experiment to revealed the most appropriate one as major input in vegetable organic cultivation. The experiment was conducted on small scale highland-vegetable farmer of Bengkulu Province of Indonesia. Bio-fertilizer composition incorporated bio-waste of vegetable residues, cow manure, and weeds of surrounding planting area. The dose of bio-fert was 20 tones/ha, sowed evenly on planting beds a week before planting. The experiment showed that bio-fertilizers decomposed from weeds and mixture of weeds, cow manure and veg harvest residues resulted on denser roots during the early plant growth as well as higher yields on pakchoy. Chili pepper plants were more suitable grown on soil incorporated with vegetable harvest residues, cow manure, or weeds but not with mixture of the three materials. Weeds and mixture bio-ferts were found to have higher contents of potassium and phosphor, and slightly high on nitrogen.

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