Increasing productivity of acid sulphate soil for rice through application of ameliorant in Banyuasin South Sumatera

Abstract Soil acidity, high solubility of Al, Fe and S as well low soil fertility are obstacles to rice production in acid sulphate soil. However, can be increase by improving land quality through application ameliorant. The study was carried out on Banyu Urip Village, Banyuasin Regency, South Sumatra during wet season 2020. aimed determine the effect ameliorant used Randomized Block Design with 6 replications. tested were P1 = control (without ameliorant), P2 Dolomite [CaMg(CO 3 ) 2 ] (2 t.ha −1 ), P3 Agricultural lime/Calcium Carbonate [CaCO P4 Manure P5 Biochar (5 P6 dolomite + manure biochar (1/3 each dose) P7 agricultural lime dose); which Swampland Test Kit doses. spread across surface two weeks before planting, then mixed using hoe at same time second tillage. Parameters observed agronomic characteristics including plant growth yield components. Results showed that provision able productivity highest found treatment (3.96 dry unhusked grain) applied combination lime, manure, biochar.