Management of Greenhouse Grape after Harvest

Grape is a perennial fruit tree, the result will consume a lot of nutrition, so generally after fruit picking will be timely tree restoration management. We also need to clear the garden and prevent diseases and insect pests. But the grapes planted in the greenhouse have fewer diseases, fewer dead branches and leaves, and there are restrictions on fertilization, so let's take a look at how to manage them.

1. Pruning

After fruit picking, the main task is to prune the pig 50 centimeters off the ground, to promote the germination of latent buds, and to cultivate new main vines to do next year's fruiting mother branches. in fact, it is to renew the fruiting mother branches and restore new vitality. Timely and complete after fruit harvest. Long slightly pruned, the main vine after the fruit is retracted to the corner of the scaffolding to promote germination and culture of fruiting mother branches.

2. Manage the new tip

After some pruning and retraction, a large number of new shoots have been promoted, and it is time to start managing them. Leave a strong, suitable node of the new shoot, the rest are removed, the excess shoot is also a consumption of nutrition, the main vine, uniform shoot, cultivate into a fruiting mother branch, when long enough to pick the heart, so that the main growth of new shoots. The new tip will pick the heart when it grows to nearly two meters.

3. Restore the tree potential

After the renewal is completed, fertilizer is needed, preferably one by one, 50 grams of urea and 150 grams of compound fertilizer are applied to a tree. As there is not much fertilizer, it needs to be applied by plants and absorbed. But when applying base fertilizer in autumn, you need to use 10,000 jin of farm manure per mu. Can be ditch application, because the amount of fertilizer is too much, ditch application can be evenly fertilized.

4. Clean up and prevention

The front pruning is for renewal and rejuvenation, but there is no comprehensive cleaning. We need to clean up some withered branches, overdense branches, as well as some sick, withered leaves and branches. It is necessary to begin comprehensive sterilization and disinfection. Spray all carbendazim, the ground and roots can not be missed. It can be sprayed when turning the soil and fertilizing. You can also choose drugs such as methyl topiramate, mancozeb, chlorothalonil and so on.

There are some differences in the management of grapes planted in the greenhouse after harvest, the interval between the use of base fertilizer is relatively long, only a small amount of topdressing. Update mainly through pruning.