1. Fertilizer selection of good fertilizers are: urea, diammonium phosphate, superphosphate, potassium dihydrogen phosphate, potassium sulfate, grass ash fertilizer and boron, zinc, magnesium, iron and other trace elements. The appropriate concentration of foliar spraying is related to the growing period and climate of the grape. The young leaf concentration should be low, and the mature leaves should be high; the rainy season can be thicker and the weather should be thinner when it is dry. General urea concentration is 0.3-0.5%, potassium dihydrogen phosphate 0.2-0.3%, diammonium phosphate 0.5-1.0%, zinc sulfate 0.3-0.5% (add equal amount of lime), ferrous sulfate 0.3-0.5% (Addition etc. Lime), superphosphate 2-3% (using lixiviant), borax (boric acid) 0.2-0.3%, potassium sulfate 0.3-0.5%, human urine (after decomposed) 5.0-10.0%, ternary compound fertilizer 1.0-1.5%, plant ash (using leachate) 3.0-5.0%, magnesium sulfate (add equal amount of lime) 0.1-0.2%. 2. Fertilizer can be sprayed from the bud to the fallen leaf before spraying, but it is best when the grape needs the most element and is lacking. The general flowering needs a large amount of boron, boron can be sprayed before, during and after the flowering period to increase the fruiting rate. The maximum amount of nitrogen fertilizer is required during the shoot growth period, and it is suitable to spray urea or human urine to promote the growth of the foliage. Phosphate fertilizer sprayed during fruit enlargement can promote fruit enlargement. The potassium is sprayed from the grain filling stage to the coloring stage. The fruit is colorful and mature. When there is a deficiency, symptomatic sprays are used. Spraying times: Nitrogen fertilizer should be sprayed 4-5 times before and after leaf spreading, before and after flowering, and after harvesting. Phosphate fertilizer should be sprayed 2-3 times in the early and middle stage of fruit growth; Potash fertilizer should be used in the late stage, early color stage and new stage of fruit filling. Spray 2-3 times during mature period. 3. The amount of liquid to be sprayed and the mixed spray fertilizer liquid were the optimum spray amount when they were dripping on the leaves. After spraying Bordeaux mixture with urea and evenly spraying, it can reduce the damage to the leaves. Urea and plant growth regulators have obvious effect on promoting the greening of yellowing leaves. The addition of fertilizers to pesticides that can be mixed can save time and labor. 4. Spraying time and the best temperature for spraying the fertilizer is 18-25 degrees. Spraying fertilizer should be done on a cloudy or sunny day before 10 o'clock in the morning or after 4 o'clock in the afternoon. At this time, the young leaves have strong physiological activity, many hairy hairs, and long moisturizing time. They have stronger absorptive capacity than mature leaves. There are many stomata on the back of the leaves, and there is a large gap between cells, which is faster than the leaf surface. Therefore, it is important to spray on young leaves, growing points and the back of leaves, and the spray should be fine and uniform. Nitrogen and potassium are easy to move and the whole plant will benefit from spraying on the leaves. Nitrogen and potassium may be moved by phosphorus, and boron, zinc and other trace elements are almost not moved. It is best to spray directly on the most needed parts of the organs.