Constructing an Arable Layer Through Chisel Tillage and Agropastoral Systems in Tropical Savanna Soils of the Llanos of Colombia
作者： S. Phiri , E. Amézquita , I. M. Rao , B. R. Singh
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摘要: ABSTRACT Integration of crop and livestock systems (agropastoralism) is a key strategy for intensifying agricultural production on infertile acid savanna soils, reversing problems soil degradation in the tropics. The main objective this study was to evaluate impact strategies including vertical tillage (1, 2 or 3 passes chisel), rotations (rice-soybean), agropastoral (rice-grass alone pasture; rice-grass/legume pasture) build-up an arable layer grain yields upland rice soybean. We assessed terms improved physical characteristics (bulk density, penetration resistance), nutrient availability, phosphorus (P) pools, plant growth, acquisition during fourth year after establishment different treatments native soil. used Oxisol eastern plains (Llanos orientales) Colombia. Agropastoral ...
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