Perbandingan Kualitas Hasil Ekstraksi Kompos Kulit Kopi dengan Metode ACT ( Aerated Compost Tea) dan NCT ( Non Aerated Compost Tea)

Abstract

Agricultural waste is the result of processing after harvesting agricultural products. Organic fertilizer is made from decomposing plant, animal, and human residues. The Compost Tea (CT) method involves soaking compost in liquid extract to enhance the quality of liquid compost. The objectives of this research are: a) to determine the effect of the Compost Tea (CT) method on extraction time, b) to assess the quality of the results using the ACT and NCT methods, c) to identify the optimal extraction time using the Compost Tea (CT) method. The study was conducted at the greenhouse of the Faculty of Agriculture, University of Jember, while the compost tea (CT) quality test analysis was performed at the Soil Laboratory, Faculty of Agriculture, University of Jember. The experimental design used in this study is a factorial completely randomized design (CRD). The research results indicate that the Aerated Compost Tea (ACT) method increases Nitrogen, Phosphorus, Potassium, pH, and Organic C levels in the solution. The extraction time significantly affects the values of Nitrogen, Potassium, and pH values, but does not affect the values of Phosphorus and Organic C values. The Aerated Compost Tea (ACT) method yields better results in enhancing the values of Nitrogen, Phosphorus, Potassium, pH, and Organic C by up to 0.02% (N), 0.008% (P), 0.012% (K), 0.76 (pH), and 0.94% (C-Org) compared to the non-aerated Compost Tea (NCT) method. Based on the research results comparing the quality of coffee husk compost extraction using the ACT and NCT methods, it can be concluded that the aerated compost tea (ACT) method enhances Nitrogen, Phosphorus, Potassium, pH, and Organic C levels. The optimal extraction time for the compost tea method is seven days.