The distribution of phosphorus forms and bioavailability in sediments from Huang Dong Hai continental shelf P fertilization effects on the accumulation, transformation and availability of soil phosphorus Effect of long-term fertilization on the content of different forms of phosphorus in wheat Effect of phosphorus application on growth of bitter Chinese lettuce and soil phosphorus leaching Effects of endophyte infection on tall fescue in different phosphorus levels and forms Effect of site-specific fertilization on soil phosphorus in purple garden soil Response of P Absorption-allocation Rate and Root Morphology of Peanut to P Foliar Fertilizers With Different Acidities STUDIES ON ACTIVATION OF PHOSPHORUS BY ORGANIC MANURE IN SOILS AND ITS MECHANISMS──Ⅱ. Organic acids from decomposition of organic manure (matter)and their effect on activation to different artificial phosphate The soil phosphorus forms under different vegetation types near timberline during non-growing season EFFECT OF BENTONITE AND PHOSPHORUS FERTILIZER ON INORGANIC PHOSPHORUS TRANSFORMATION AND THEIR AVAILABILITIES IN CALCAREOUS SOIL STUDIES ON ACTIVATION OF PHOSPHORUS BY ORGANIC MANURE IN SOILS AND ITS MECHANISMS──Ⅰ.Effect of organic manure (matter)on activation to different phosphate in soils Distribution of different phosphorus forms in sediments of Eastern Rushan Bay Relationship between soil organic phosphorus forms in larch plantations and tree growth