Abstract: People believe that： if the crops have grain is more lie on the water ,but how much the grain depends on the fertilizes. Some farmers fertilize much, but the output is not higher, or output is increasing but the income didn＇t increase .because Crop different it needs nutrients also different the effect that Single fertilizer is not better than fertilizer with others. Different types of soil fertilizer rate is not the same , Fertilizer is not the more the better, Soil testing and fertilizer is brought out to solve these problems . popularizing Soil testing and fertilizer, Can improve fertilizer utilization ratio and save fertilizer rate Also Improve agricultural products quality, and a production section fertilizer, earnings and the technical measures of income.