Effects of regulated deficit irrigation on accumulation and distribution of biomass and nitrogen, and yield of island cotton Effects of chemical regulation and P fertilization on P absorption and utilization in maize/peanut intercropping system Effects of different fertilization schemes on growth, accumulation andtransportation of nutrient elements and yield of wheat in lime-concretedblack soil region Effects of long-term fertilization modes on spatio-temporal distribution and accumulation of soil nitrate nitrogen in solar greenhouse Soil nitrate leaching and control methods in the piedmont of North China Plain Effects of different nitrogen application amounts and seedling densities on nitrogen accumulation and transport in winter wheat at anthesis stage Effects of combined application of silicon and phosphorus fertilizers on dry matter accumulation and distribution and grain yield of spring maize in low phosphorus soils Effect of exogenous selenium on growth and development of buckwheat under plumbum stress