Fertilizer Basal fertilizer is mainly based on furrows, autumn is appropriate, once a year. On the side of the plant, a ditch (width 30 cm, depth 60 cm) is applied about 40 cm from the trunk. Fertilizers are dominated by mature, high-quality organic fertilizers. Chicken manure is the best choice. Raw chicken manure should be mixed and fermented with sheep manure and cow dung to prevent burning. Organic fertilizer, sand, topsoil 1:1:1 mix and apply to the ditch, add some superphosphate, potassium sulfate and ferrous sulfate and other trace elements mixed backfill, ditch the bottom about 10 cm of crop stalks, and finally cover Cook the soil and fill it with water. In the top-dressing fruit period, topdressing nitrogen fertilizer is the main part, and phosphorus and potash fertilizer are the main fertilizers in the middle and later stages. 80-150 grams of urea per plant, 80-150 grams of diammonium phosphate, potassium sulfate 80-200 grams, combined with irrigation after fertilization. Soil top dressing is prohibited within 30 days before picking. In the growing season outside the root dressing combined with the application of pesticides for extra-root dressing, 0.3% urea and 0.3% potassium dihydrogen phosphate can be sprayed. In the 20 days before picking, top dressing is prohibited. In areas with conditions, nutrient diagnostic fertilization should be based on soil and leaf analysis results. Irrigation and drainage In the early spring after the grape was unearthed, it was sprayed once before germination; irrigation was performed before flowering, and watering was prohibited during the flowering period; water was irrigated once during the growing period of the berries, and irrigation was stopped 20-25 days before the berry was harvested. In the fall, the base fertilizer is used to irrigate the water again. Fill frozen water before filling. In different regions, the irrigation period can be determined based on the water holding capacity. Generally, the field water holding capacity in the early growth period should not be lower than 60%, and the latter period should be about 50%. Drain the drainage system before the rainy season. The rainy season in the northern region is the ripe period of berries, and attention must be paid to timely drainage.
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