Effects of exogenous phenolic acid on soil nutrient availability and enzyme activities in a poplar plantation. Effect of phosphate rocks on nutrient availability of rice on acid sulphate soils ION EXCHANGE RESIN AND ITS APPLICATION IN AGRICULTURAL AND ENVIRONMENTAL RESEARCH Plasticity of clonal architecture in response to soil nutrients in the stoloniferous herb Duchesnea indica Focke A review on research of plant nutrient use efficiency Nutrient availability in habitats affects carbon and nitrogen releases of litter in winter wheat Effect of Different Nitrogen Sources on pH and Nutrient Availability in the Root/Soil Interface of Larix gmelinii Seedlings Biodiversity and Ecosystem Productivity:Why Is There a Discrepancy in the Relationship Between Experimental and Natural Ecosystems? Patterns of ecoenzymatic stoichiometry in the dominant shrubs in the semi-arid Upper Minjiang River Valley