Effects of nitrogen application on yield, photosynthetic characteristics and water use efficiency of hybrid millet Studies on gas exchange of Tamarix ramosissima Lbd. Effect of population distribution on yield and water use efficiency in summer soybean The photosynthetic and water physiological characteristics of Populus euphratica and Populus pruinosa in the upper reaches of Tarim River Long-term quantitative simulation and evaluation of potential productivity of winter wheat in Mengjin, Luoyang The Relationship between Water Use Efficiency and Related Physiological Traits in Wheat Leaves Primary studies on the daily dynamic changes of photo-synthesis and transpiration of Salix psammophila CHARACTERISTICS OF PHOTOSYNTHESIS AND BIOMASS ALLOCATION OF SPRING EPHEMERALS IN THE JUNGGAR DESERT Daily dynamics of photosynthesis in alfalfa varieties under dry farming conditions Physiological foundation for thedifferences of long-term water use efficiency among Populus deltoides clones Comparison of photosynthesis and water use efficiency between three plant functional types in Hunshandak sandland Effects of conservation tillage on soil water regimes in rainfed areas Analysis on affecting factors of group water use efficiency of summer corn REGULATION SOIL WATER AND WATER USE EFFICIENCY BY LEVEL FURROW WATER USE EFFICIENCY AND IMPROVEMENT WAY THE EFFECT OF LIMITED WATER SUPPLY ON THE YIELD AND WATER USE EFFICIENCY OF SUMMER CORN Effects of Root Pruning and Shoot Pruning on Water Use Efficiency of AppleLeaves Effects of Root Pruning and Shoot Pruning on Water Use Efficiency of AppleLeaves Leaf Water Use Efficiency and Its Relationship with Hydraulic Characteristics in Eight Dominant Trees and Shrubs in Loess Hilly Area during Vegetation Succession Effects of Seasonal Drought on the Water Use Efficiency of Qianyanzhou Plantation Grain Yieldand Water Use Characteristics of Winter Wheat under Micro-sprinkler Irrigation Photosynthesis Characteristics of Four Paris (Trilliaceae) Species