Early maturing grape: Clear Garden, restoration of tree vigor
After the harvest of the Qingyuan grape is finished, it is necessary to promptly clear the garden, collect the remaining diseased fruits, diseased fruit branches, diseased fruit leaves, etc. in the park and collect it in a deep buried manner. After the cleaning, the bactericidal agent such as Bordeaux mixture or lime sulfur can be used to perform the whole process. Garden spray (but Bordeaux mixture and lime sulfur can not be used together, rotation should also be used at a certain time interval) to eradicate and reduce the park pest density.
Tree vigor recovery should be applied to good post-harvest fertilizer and promote tree vigor to resume as soon as possible. Generally, the compound fertilizer in Mushi is 15 kg. If the relative tree vigor is strong, it can be applied less or not, to prevent the shooter from being young and consume nutrients.
Medium-maturing grape: promotes coloration and promotes maturity
At this stage, the flesh begins to soften, the sugar content gradually increases, and the acidity decreases. In order to promote the coloration of berries, potassium fertilizer is used as the main fertilizer. For denser leaves, the old leaves under the ear can be removed, and bags can be removed to increase the light. For the more prosperous gardens, girdling measures can be taken to promote the maturation. For some hard-to-color varieties, consider laying reflective film to increase the amount of light. From the perspective of fruit food safety, we should pay attention to the safety period for the use of pesticides. The use of drugs should be stopped 20 days before the market launch of grapes. At the same time, we must do a good job of preventing birds and animals.
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