Effects of Irrigation Methods on Growth and Water Use Efficiency of Alfalfa in Arid Northwest China Effects of Different Irrigation Methods on Alfalfa Yield and Irrigation Water Use Efficiency Microbial activity and functional diversity in rhizosphere of cucumber under different subsurface drip irrigation scheduling. Effects of subsurface drip irrigation on alfalfa growth and seed production The Growth and Photosynthesis of Poplar Trees in Fast-growing and High-yield Plantations with Subterranean Drip Irrigation Water Distribution Pattern and Influence on Alfalfa Seed Yield Using Subsurface Drip Irrigation Effect of Emitter Depth of Underground Drip Irrigation System on Soil Water Transportation and Turfgrass Growth Effects of soil water potential on the growth and physiological characteristics of Populus tomentosa pulpwood plantation under subsurface drip irrigation