COMBINING BIOCHAR AND LIQUID ORGANIC FERTILIZER FOR IMPROVEMENT OF SHALLOT GROWTH AND YIELD

Abstract

This study aims to examine the response of shallots to applying biochar and liquid organic fertilizer combination, and to obtain the combination that gives the highest growth and yield of shallots. The research design used was a randomized block design (RBD) with one factor, namely the combination of biochar dosage and liquid organic fertilizer (LOF) concentration consisting of 0 tonha-1 biochar + 0 mL-1 LOF; 0 tons ha-1 biochar + 7.5 ml L-1 LOF;0tonha-1 biochar + 15 mLL-1 LOF; 10 tonha-1 biochar + 0 mLL-1 LOF; 10 tonha-1 biochar + 7.5 mLL-1 LOF; 10 tonha-1 biochar + 15 mLL-1 LOF; 20 tonha-1 biochar + 0 mLL-1 LOF; 20 tonha-1 biochar + 7.5 mLL-1 LOF; 20 tonha-1 biochar + 15 mLL-1 LOF. Each treatment was repeated 3 times. The results showed that the combination of biochar and liquid organic fertilizer increased the growth and yield of shallots. The best combination was obtained at 20 tonha-1 biochar + 7.5 mLL-1 LOF. The productivity of shallots in the form of dry tuber weight from this study (6.8 tonha-1) is still low when compared to the national average (9 tonha-1), and the yield potential of shallots of the Brebes variety (9.9 tonha-1). When compared to shallots that were not given biochar and not given LOF, the yield of shallots in the form of tuber dry weight increased by 139.86% by administering a combination of biochar 20 tonha-1 + 7.5 mLL-1 LOF.

Keywords

• allium ascalonicum
• ameliorant organic
• productivity