Effect of Phosphorus Application Rate on Dry Matter Accumulation and Phosphorus Utilization Efficiency in Oil Flax Effects of phosphorus application on dry matter production and phosphorus uptake in wheat (Triticum aestivum L.) Effect of Phosphorus Application Amount on the Growth,Nutrient Absorption,and Cold-resistance of Tall Fescue(Festuca arundinacea Schreb.) in Winter Effect of phosphorus application on soil available phosphorus and maize phosphorus uptake and yield Effects of phosphorus application on root characteristics of super-high-yield spring maize Effect of phosphorus application on growth of bitter Chinese lettuce and soil phosphorus leaching Effects of phosphorus fertilization methods on phosphorus absorption and utilization of high yield spring maize