Effect of soil tillage on phosphorus loss from slope land:An experimental study Effect of slow-release fertilizer and tillage practice on grain yield and nitrogen efficiency of summer maize (Z. mays L.) Effects of different soil tillage systems on weed biodiversity and wheat yield in winter wheat (Triticum aestivum L.) field Effects of soil tillage and straw returning on weed biodiversity in summer maize (Zea mays) field Effects of long-term tillage and rice straw returning on soil nutrient pools and Cd concentration. Effects of different tillage methods on phospholipid fatty acids and enzyme activities in calcareous cinnamon soil. Soil Drought and Anti-drought Tillage Methods in the Plateau of Hebei Province