Kandungan Hara NPK Pupuk Organik Cair (POC) dari Kulit Buah Kopi, Daun Gamal, Daun Lamtoro, Daun Paitan dan Kombinasinya

Abstract

This study aims to determine the best NPK nutrient content from liquid organic fertilizer of coffee pod skin, gamal leaves, lamtoro leaves, paitan leaves and their combinations. This research was conducted from February to April 2022 at the Taman Perkasa Indah Complex, Tanjung Sari Village, Medan Selayang District, Medan City, North Sumatra and analyzed in the laboratory of PT Socfin Indonesia, Medan. This study used a non-factorial completely randomized design (RAL) with eight treatments and three replications. The parameters observed were the total N-, P-total and K-total contents of the liquid organic fertilizer. The results showed that the single treatment and combination of ingredients had a significant effect on the parameters of N-total and P-total where the best N content was using all ingredients except for the 100% coffee pulp treatment (P1). The best P content was found in the P4 treatment (100% paitan leaves) and the K content was not significantly different between all treatments.