Effect of irrigation method on dry mass and nitrogen and potassium utilization of maize under different water and nitrogen conditions Effects of alternate partial root-zone irrigation on physiological characteristics and water use of maize under different water and fertilizer conditions Effects of irrigation method and ratio of organic to inorganic nitrogen on yield and water use of rice Effects of different irrigation methods and quantities on soil salt transfer in oasis alfalfa fields Effects of different irrigation methods on grain quality of japonica rice in Huanghuai District of China. Effects of irrigation and nitrogen management on nitrogen use efficiency and yield of hybrid rice cultivated in ditches under no-tillage Soil microbial biomass carbon and nitrogen and enzyme activities in paddy soil under “thin-shallow-wet-dry” irrigation method Water use efficiency and growth characteristics of young trees of Robinia pseudoacacia plantation forest under different irrigation methods in old course of Yellow river area