| The methods of field experiment,lab analysis and statistical analysis were adopted to study the influence of phosphorus on nutrient content in spring wheat,nutrient absorption,accumulation of dry matter and biological yield of spring wheat.There were two treatments NPK and NK with three replicates for the field experiment and the rate of phosphorus fertilizer was 165 kg/hm2.The results of field experiment showed: the fast phrase of nutrient absorption and accumulation of dry matter were between the phrases of milky and wax maturing.Phosphorus fertilizer could improve nitrogen and phosphorus content in spring wheat, but had less effect on other nutrients in spring wheat.Phosphorus fertilizer could increase accumulation of dry matter of spring wheat,increase yield of spring wheat,and increase content of nitrogen and phosphorus in seed of spring wheat.Therefore,more attention should be paid to using nitrogen fertilizer,phosphorus fertilizer and potassium fertilizer in proper rate. |