Thái Phiên, Nguyễn Tử Siêm, Trần Đức Toàn (trang 114-123)
Từ khoá: cơ cấu, cây trồng, biện pháp, canh tác, xói mòn, đất dốc
Cropping systems and farming practices in controlling erosion and conserving sloping soils
The measures of soil erosion control such as hedgerow farming, bunding, hillside ditches, contour cultivation, cropping systems for crop cover in the rainy season can reduce average 50% of soil erosion quantity in comparison with control. Returning crop residues of leguminous crops into the soil is the best measure for improving soil fertility and increasing crop yields, by this way, every year the amount of nutrient about 100-200kg N, 10-30kg P2O5, 50-100kg K2O was added into the soils.