Effects of silicon application and drought stress on photosynthetic traits and mineral nutrient absorption of rice leaves SEASONAL CHANGES OF PHOTOSYNTHETIC CHARACTERISTICS IN 12 TREE SPECIES INTRODUCED ONTO OIL SHALE WASTE Characteristics of Photosynthesis and Water Physio-ecology of Young Macrocarpium officinalis Water utilization sources of Alnus nepalensis in the water source area of Yuanyang terrace A Comparative Study of Photosynthetic Characteristics of Caragana davazamcii Between Plants of Different Ages in Huangfuchuan Basin of Ordos Plateau Study on Suitable Irrigation Norms of Pinus tabulaeformis and Platycladus orientalis Plantation Study on leaf transpiration and stomatal structure of medicinal plant Tetrastigma hemsleyanum EFFECT OF FERTILIZATION ON ROOT DEVELOPMENT, ROOT METABOLISM OF SPRING WHEAT AND THE MECHANISM OF FERTILIZATION ON SOIL WATER UTILIZATION THE EFFECT OF RARE-EARTH ELEMENTS ON PHYSIOLOGICAL CHARACTERISTICS OFROBINIA PSEUDOAEACIO SEEDLINGS CHARACTERISTICS AND MECHANISM OF DROUGHT TOLERANCE Of PLATlYCLADUS 0RJENTALJlS PROVENANCES Effects of Nitrogen Application on Forage Maize Planted in Two Soil Types in Agriculture-Animal Husbandry Ecotone of North China Study on Photosynthesis and Water Physiology of Cinnamomum septentrionale A Study on the Utilization Efficiency of Water and Energy Resources of Agroforestry System Principle and practice of saline-alkali soil improvement via subsurface pipe engineering in coastal areas of East Hebei Province Influence of VA Mycorrhize on Nutrient and Water Absorption in White Clover Solar energy and water utilization of Quercus mongolica, a deciduous broadleaf tree, in different light regimes across the edge of a deciduous broad-forest Effects of water and fertilization on relationship between competitive ability and seed yield of modern and old spring wheat varieties Water use strategies of Malus toringoides and its accompanying plant species Berberis aemulans Effect of Drought Hardening in Earlier Growing Stage on Water Utilization Efficiency of Millet ANALYSIS AND EVALUATION OF SOIL WATER CONDITIONS OF PROTECTIVE FOREST ECOSYSTEM IN LOESS AREA Characteristics of Water Utilization in Border Row and Optimum Disposition Structure in Plantation in Arid and Semi-Arid Region