PENGARUH CARA PENGELOLAAN LAHAN TERHADAP PERUBAHAN SIFAT-SIFAT TANAH OXISOL DAN HASIL KEDELAI DI DAS SINGKARAK (The Effect of land preparation on the exchanges of Oxisol Properties and yield of soybean in Singkarak Watershed).

S , Busyra B (2010) PENGARUH CARA PENGELOLAAN LAHAN TERHADAP PERUBAHAN SIFAT-SIFAT TANAH OXISOL DAN HASIL KEDELAI DI DAS SINGKARAK (The Effect of land preparation on the exchanges of Oxisol Properties and yield of soybean in Singkarak Watershed). Jurnal Stigma, 8 (3). pp. 200-204. ISSN 0853-3776

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Abstract

The experiment was conducted at the farmer field Singkarak, Solok District from September to December 1997. The main objective of the experiment was to study the effect of land preparation on the exchanging of soil properties and the yield of soybean on Oxisol Singkarak Watershed. Two methods of land preparation (Slash and burno and No burn) and three methods of soil tillage (no tillage, conservation tillage and conventional tillage) were arranged in split plot design with three replications. Results showed that land preparation significantly affected the soil physical properties (mechanical impedence and saturated hydraulic conductivity), soil chemical properties (soil organic matter, nitrogen and cation exchange capacify) and plant growth. Soil tillage significantly affected the soil physic, soil chemistry and yield of soybean. Result of multiple regression analysiso revealed that 89% of yield of soybean depended on the bulk density and aeration pore, and 11% of that depended on the other physical and chemical properties.

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