Nguyễn Tất Cảnh, Nguyễn Văn Dung
Từ khoá: ảnh hưởng, tưới, phân viên nén, năng suất, lúa, môi trường đất
Summary
Effect of economized irrigation water and pressed granule fertilizer on rice yield and soil environment
Water saving technique creates a good condition for growth and development of rice root system, which made an increase in active leaf area and yield components. In saturation condition no difference in chemical substances such as Fe2+, Fe3+, NO3–, NH4+, available P, K and Eh in comparison with flooding. Water saving technique increased effect of compost applied for rice. Rice productivity is increased 54-71% in year 2004 thanks to combination between water saving technique with fertilizer deep placement.