Grape requires more nitrogen fertilizer in the early stage, and more phosphorus and potassium fertilizer in the later stage. Grapes should be fully decomposed when applying organic fertilizer. Organic fertilizers can also be mixed with chemical fertilizers (ammonium nitrate, urea, potassium nitrate, superphosphate, etc.), biological fertilizers (nitrogen-fixing bacterial fertilizer, yield-increasing bacterial fertilizer, biological potash fertilizer, and enzyme bacteria). Fertilizer, etc.) can be used as base fertilizer, top dressing and leaf fertilizer. The best period of basal fertilizer application is after grape harvest to before leaf fall. Top dressing on the ground usually occurs in several key periods such as before germination, before flowering, after fruit setting, before maturity and after harvest.

Base fertilizer: from the end of September to the beginning of October when the new shoots are fully mature after the fruit is harvested. The base fertilizer is mainly bio-organic fertilizer. Apply 350-450 kg of bio-organic fertilizer per mu, mixed with 50 kg of superphosphate, and use the ditch along the vine row to apply it on one side. Be careful not to get too close to the tree to avoid damage to the roots. Affect the growth of grapes.

Top dressing: Generally, top dressing is applied 10 days before the flower, with 3-5 kg of bio-organic fertilizer, 100g of urea, furrow or hole application. For the second topdressing in early July, 2-3 kg of bio-organic fertilizer was applied with 100 g of potassium sulfate. Extra-root topdressing: It has a significant effect on improving yield and quality, and the method is simple.

Spraying 1-3% superphosphate solution before flowering, young fruit period and berry ripening period can increase yield and improve quality; spray 0.05-0.1% before flowering。