Soil Quality Parameters Influenced by Tillage and Weed Management Practices in Maize-Sunflower Cropping Systems

摘要

Field experiment was conducted during kharif and rabi seasons of 2005-2006 to study the effect of different tillage and weed management practices on physical and chemical of soil under maize-sunflower cropping system. The result revealed that continuous conventional tillage (T_4) and conventional tillage (T_3) for maize and T_2 for sunflower) resulted in lower bulk density and higher total porosity and infiltration rate. Wliereas continuous zero tillage (T_1) resulted in higher bulk density and lower total porosity and infiltration rate. Chemical analysis of post harvest soil samples showed higher amount of available N, P and K recorded with conventional tillage (T_4 and T_3 for maize and T_4 and T_2 for sunfloiuer).