Impact of tillage practices on microbial biomass carbon in top layer of black soils. Response of soil respiration of corn field under no tillage to precipitation events in loessial tablelands Effects of soil texture on variations of paddy soil physical and chemical properties under continuous no tillage Spatial pattern of Echinocnemus squameus and tillage impact Evaluating tillage practices impacts on soil organic carbon based on least limiting water range Temporal and spatial disparities of soil enzyme activities during the spring wheat growing season under different tillage systems Effect of different moisture management modes on root growth characteristics of cast transplanting rice in seedling standing period under no tillage Effect of long-term conservation tillage on total organic carbon and readily oxidizable organic carbon in loess soils