The Latest Technical Methods and Tutorial for Grape Flower and Fruit Management

Grapes now have a very large market nationwide. Grapes can not only be eaten as fresh fruit, but can also be processed into various foods such as raisins and wine. They are very popular on the market. When growing grapes, grape management work is very important, especially management during the flowering and fruiting period. So today, the editor brings you the management techniques for grapes during the flowering and fruiting period. Let's take a look below!

1. Reasonable load

Grapevines have a load range. If the number of flowers and fruits on a grapevine exceeds the load range, then not only will it fail to increase yield, but it will also cause a large amount of flower and fruit drop, leading to reduced yield. During the flowering and fruiting period of grapes, the yield per mu should not exceed 2000kg. The load per square meter is about 3kg of fruit. Control the clusters well according to the variety. For varieties with small clusters, control the weight of each cluster at about 300g. The number of clusters on each fruiting cane must not exceed 2, and excess flower clusters should be removed in time to ensure that the number of flowers and fruits remains within the load range of the grapevine.

2. Spraying foliar fertilizer

During the flowering period of grapes, properly spraying foliar fertilizers such as borax can effectively increase the fruit-setting rate of grapes. When spraying foliar fertilizer, note that it should not be done on sunny days, but should be done on cloudy days or in the morning and evening. This can avoid the agent evaporating too quickly after spraying due to excessively high temperatures. Then when spraying, pay attention to the spraying position and method. Use the spray method to spray on the back of young leaves. An appropriate amount of washing powder can be added to the fertilizer to ensure that the fertilizer solution sticks to the leaves.

3. Cluster trimming

Cluster trimming is also an indispensable management measure for grapes during the flowering and fruiting period. It is carried out when the grape inflorescences are fully extended but have not yet fully opened. The objects to be cut are large clusters and secondary clusters, but they should not all be cut off; about 1/4 should be cut off. And about 4/5 of the cluster tip should be retained. Similarly, for smaller clusters, pruning should not be too heavy, and they may even not be pruned at all; a little trimming is enough.

4. Fruit bagging

After grapes set fruit, doing a good job of bagging can effectively prevent diseases, insects, and birds from damaging the fruit. It can prevent the fruit from coming into contact with the spray solution, reduce contamination of the fruit, and reduce adverse phenomena such as sunscald and fruit cracking. It improves fruit quality and yield. When the clusters are arranged for the first time, bagging should be done at the appropriate time, generally about three weeks after flowering. Determine the specific bagging time according to the growing region. Before bagging, sterilization should be carried out once, mainly targeting the clusters, mainly with agents such as thiophanate-methyl. After the agent dries, bagging can begin.

The above is a brief introduction to the management techniques for grapes during the flowering and fruiting period. The management work for grapes during the flowering and fruiting period is very important, so everyone must pay close attention. That is all for today's introduction. Friends who want to learn more related information, please continue to follow us!