EFFECT OF MACRONUTRIENT AND MICRONUTRIENT IN LEACHATE AS ORGANIC LIQUID FERTILIZER FROM BLACK SOLDIER FLY (HERMETIA ILLUCENS) LARVAE ON PAK CHOI GROWTH (BRASSICA RAPA L. CV. NAULI) USING NUTRIENT FILM TECHNIQUE (NFT) HYDROPONIC SYSTEM

• Main Author: Rahmawati, Nurul
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/43260
• Institution: Institut Teknologi Bandung

Hydroponic is the solution of agriculture land limitation nowadays. Morever, hydroponic system is also can resolves soil matter that often contaminated by pathogen. This system has been proven resulting high crop productivity and easy to applied. High operational costs that used for this system can be solved by replacing AB solution and using leachate as organic liquid fertilizer from Black Soldier Fly (BSF) (Hermetia illucens) larvae bioconversion in hydroponic system. The purpose of this research is to determine the effect of macronutrient and micronutrient content in 100% AB Mix solution, 60% AB Mix solution: 40% leachate, 50% AB Mix solution: 50% leachate, 40% AB Mix solution: 60% leachate, and 100% leachate solution on plant growth, number of leaves, fresh weight, water content, clorofil content, fiber content, and Vitamin C on Pak choi. Pak choi planted on NFT hydroponic system using 5 treatment that each of treatment using 21 plants. Leachate as the result of fruit waste bionconversion by black soldier fly (BSF) larvae used as the substitution of AB Mix Solution. The result showed that 60% AB Mix solution: 40% leachate treatment producing 91.24 grams fresh weight, 6.02 grams dry weight, 21.06 cm plant height, 15 total number of leaves, and 10.49 mg/L total clorofil content. That all parameters no significally different after compared with the result in control treatment (100% AB Mix) using Mann – Whitney (? = 0,05) statistic test. Highest vitamin C found in 100% leachate solution treatment (92.21 mg/100 gr sample) and highest fiber content found in 50% AB mix solution : 50% leachate (0.85%). Based on the research, it is concluded that 60% AB Mix solution : 40% leachate is the best composisition for pak choi growth compared by other treatment in this research.