Post-harvest management determines yield management of grape in greenhouse after harvest

At present, the greenhouse grapes have entered the end of harvest, and some varieties have been harvested. The management after harvest directly determines the nutritional reserve of grape plants, as well as the yield and quality of grapes in the coming year. Therefore, it is particularly important to do a good job in the management of greenhouse grape harvest. It is recommended that the following two points be done well:

Grape

1. Pruning and fertilization after harvest. At the time of germination, the buds from the lower part of the fruit mother man are reserved for the reserve branch culture, and the upper fruit man bears grapes and retains the prepared branches; when pruning, the fruit mother man that has already produced grapes is removed (the result man is removed at the same time). Then the preparatory man is cultivated into the fruit mother man of the second year, which is recycled year by year. At the same time, combined with the pruning of branches, timely soil fertilization. Combined watering can apply 300-500 kg bio-organic fertilizer mixed with a small amount of nitrogen, phosphorus and potassium ternary compound fertilizer 50 kg; at the same time, 0.3% urea and 0.3% potassium dihydrogen phosphate can be sprayed outside the root, once every 7-10 days, 4-5 times in a row. Promote the aboveground and underground growth and nutrient balance, and complete the smooth transition from the prepared shoot to the fruit mother.

2. Pest control. After grape harvest and pruning, weeds, fallen leaves, diseased fruits and diseased ears should be removed from the shed in time so as to reduce the number of diseases and pests in the shed. In addition, Bordeaux liquid should be sprayed every 10-15 days after harvest for 2-3 times, which can effectively prevent the occurrence of many diseases. The high incidence period of grape downy mildew and powdery mildew is from mid-late July to early August. According to the situation in the greenhouse, 40% ethyl phosphorus, manganese zinc and 1000 times of methyl topiramate can be sprayed for 2-3 times.