Effects of Rotational Tillage and Alternate Border Irrigation on Photosynthetic Characters of Wheat-maize Double Crops Effects of different rotational tillage patterns on soil physical properties and yield of winter wheat-spring maize rotation field in Weibei highland Effects of rotational tillage on soil physiochemical propertiesand spring maize yield in Weibei Highlands Effect of tillage practices on soil microbial biomass carbon in the field with long-term non-tillage Research progress on ecological effects under the rotational tillage patternsin agricultural regions of China Effects of Rotational Tillage on Tilth Soil Structure and Crop Yield and Quality in Maize–Wheat Cropping System