Mineralisasi Nitrogen pada Komposisi Bahan Gambut dan Kotoran Ayam

Sukmawati Sukmawati; Fakhrur Razie; Abdul Haris

doi:10.20527/actasolum.v1i1.1387

Sukmawati Sukmawati Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat
Fakhrur Razie Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat
Abdul Haris Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat

DOI: https://doi.org/10.20527/actasolum.v1i1.1387

Keywords: Peatland, Organic matter, Mineralization

Abstract

Peat soils contain high concentrations of organic nitrogen, but in a form that is not available to plants. South Kalimantan has NH₄⁺ in the range 4.51- 736.86 mg.kg^-1 and NO₃^- content is in the range of 0.37-54.69 mg.kg^-1. The low availability of N nutrients in peatlands is due to the slow nitrogen mineralization process and the very high mobility of N in the soil. This study aims to determine the effect of the composition of peat and chicken manure on nitrogen mineralization. This study used a single factor in completely randomized design (CRD) with 5 treatments and 4 replications. carried out in greenhouses and in the Soil Laboratory of the Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru. The treatment is the composition of peat and chicken manure, namely 100% peat material, 80% peat material + 20% chicken manure, 60% peat material + 40% chicken manure, 40% peat material + 60% chicken manure, 20% peat material + 80% chicken manure. The best composition for nitrogen mineralization is based on the high nitrate content, which is found in the composition of 80% peat soil + 20% chicken manure in the first month of incubation, and on the composition of 80% peat soil + 20% chicken manure in the second month. This composition is the best composition from a combination of peat material and chicken manure against nitrogen mineralization in the form of nitrates.

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