Effect of Continuous Application of Phosphorus and Potassium Fertilizer on the Yield and Nutrient Uptake of Rapeseed and Soil Fertility in South Anhui

The effect of phosphorus and potassium fertilizer on the yield and nutrient uptake of rapeseed and soil fertility was studied.The result showed that the application of phosphorus and potassium fertilizer combined with nitrogen fertilizer could promote the growth of rapeseed and increase the nurtient content and nutrient uptake.So the yield of rapeseed increased remarkably.The effect of phosphorus fertilizer on the yield was greater than that of potassium fertilizer.The application of phosphorus and potassium fertilizer could also improve the soil nutrient content.