Application of Compost Produced from Bioconversion of Coffee Husk by Black Soldier Fly Larvae (Hermetia illucens) to Lettuce (Lactuca sativa var. crispa) : Impact to Harvested Biomass and Utilization of Nitrogen, Phosphor and Potassium

• Main Author: Hutami (11413059), Rachmisanti
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23759
• Institution: Institut Teknologi Bandung

Coffee husk is potentially compostable because it contains nitrogen, phosphorus <br /> <br /> <br /> <br /> and potassium which can increase crop production. The compost can be applied to <br /> <br /> <br /> <br /> curly lettuce. Effect of manure compost treatment, coffee husk compost <br /> <br /> <br /> <br /> conversion by Black Soldier Fly 1: 1, coffee husk compost conversion by Black <br /> <br /> <br /> <br /> Soldier Fly 1: 2, fresh coffee compost 1: 1 and fresh coffee compost 1: 2 to <br /> <br /> <br /> <br /> growth and absorption lettuce plants were studied and designed using the <br /> <br /> <br /> <br /> Randomized Block Design (RAK) method. The results showed that the largest <br /> <br /> <br /> <br /> fresh biomass was in the compost manure treatment specifically 62.513 gram, the <br /> <br /> <br /> <br /> largest dry biomass is in the compost manure treatment specifically 4.03867 gram, <br /> <br /> <br /> <br /> the highest nitrogen absorption is in the manure treatment with the absorption <br /> <br /> <br /> <br /> value of each 1 kilogram sample specifically 2.912 gram, the highest phosphorus <br /> <br /> <br /> <br /> uptake is in the coffee husk compost treatment by Black Soldier Fly conversion <br /> <br /> <br /> <br /> 1:1 with the absorption value of 1 kilogram of sample specifically 0.00937 grams, <br /> <br /> <br /> <br /> and the highest potassium uptake is in the coffee husk compost treatment by Black <br /> <br /> <br /> <br /> Soldier Fly conversion 1:2 with the absorption value per 1 kilogram sample <br /> <br /> <br /> <br /> specifically 3.18118 gram. Based on this result, coffee husk compost treatment by <br /> <br /> <br /> <br /> Black Soldier Fly conversion can be recommended as fertilizer on curly lettuce.