Effects of Specific Fertilizer on Runoff Loss of Nitrogen and Phosphorus and Yield of Rice

Effects of specific fertilizer on runoff loss of nitrogen and phosphorus,yield of rice and fertilizer using efficiency were studied by field experiment.The results showed that rice specific fertilizer could reduce rainfall runoff loss of total nitrogen(TN) and total phosphorus(TP) by 17.33% and 10.94% respectively,increase yield of rice by 9.28%,enhance using efficiency of nitrogen fertilizer by 8.9%,and increase the nutrient of soil after rice harvest.The 80% of specific fertilizer can more effectively reduced the rainfall runoff loss of total nitrogen and total phosphorus and enhanced using efficiency of nitrogen fertilizer,meanwhile maintained a higher level of yield,soil nutrient and economic benefit.