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PRELIMINARY STUDIES ON WATER CONTENT AND DEGREE OF REQUIRED WATER OF MAIN PLANTS IN KOBRESIA HUMILIS MEADOW. STUDY ON INTERACTIVE MECHANISM BETWEEN SOIL AVAILABLE WATER AND FERTILIZERS AND ITS APPLICATIONⅠ. The Salt Index of Fertilizers Effects of drought stress, high temperature and elevated CO2 concentration on the growth of winter wheat. Characteristics of particle size structure of plankton community in turbidity zone of nearshore waters, Liaoning Province of Northeast China. STUDY ON THE CARBON ASSIMILATION RATE OF PHYTO-PLANKTON IN THE UPWELLING REGION IN MINNAN-TAIWAN BANK FISHING GROUND THE EXCITATION MECHANISM BETWEEN FERTILIZER AND WATER UNDER DRYLAND CONDITION SEASONAL VARIATION IN THE BIOMASS OF SOIL DECOMPOSER MICROBES AND ITS RELATIONSHIP TO THE SOIL HABITAT IN THE LEYMUS CHINENSIS GRASSLANDS IN NORTHEAST CHINA