Perubahan Bobot Isi, Total Pori dan Kadar Air Tanah Sulfat Masam pada berbagai Dosis Biochar Sekam Padi yang Dikombinasikan dengan Amandemen Organik dan Anorganik

Agusalim Masulili

Abstract


Acid sulphate soils are suboptimal soils which have the potential for agricultural development. However, in addition to having chemical constraints, this land has physical constraints that need to be repaired if used as food crops. The main physical properties that must be given attention include high soil weight, low total pore and low water retention ability.
Therefore, the purpose of this study is to determine the effect of various doses of single rice husk of biochar and its combination with organic and inorganic amendments on changes in weight, total pore and acid sulphate soil water content. The implementation of this research in the Experimental Field of Agricultural Technology Research Institute (BPTP) in Pal IX Province of West Kalimantan within 4 months. The study used a randomized block design (RBD) with the treatment consisting of; control soil (B0), rice husk biochar 6 t.ha-1 (B1), rice husk biochar 8 t.ha-1 (B2), rice husk biochar 10 t.ha-1 (B3), rice husk biochar 12 t .ha-1 (B4), recommended inorganic fertilizer package (B5), recommended inorganic fertilizer package + rice husk biochar 10 t.ha-1 (B6), 10 t.ha-1 (B7) manure fertilizer 10 t. ha-1 + rice husk biochar 10 t.ha-1 (B8).
The results of the study showed that the amendment of single rice husk biochar and its combination with inorganic and organic amendments had different effects on the improvement of some physical properties of acid sulphate soil (bulk density, total pore and soil moisture content). The lowest acid sulphate soil (BI) content weights were obtained in a single biochar amendment with a dose of 12 t.ha-1, decreasing 16.28% compared to control soil. Furthermore, rice husk biochar was given singly, producing the highest porosity and soil water content at doses of 12 ton.ha-1, respectively 55.13% and 17.12%.

Keywords


Biochar, bulk density, total pore, water content, acid sulphate soil

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Jurnal AGROSAINS PUBLISHED BY: FAKULTAS PERTANIAN UNIVERSITAS PANCA BHAKTI Jl. Kom Yos Sudarso, Pontianak