Points for attention before bagging grapes

Grape is one of the most well-known grape varieties, and growing grapes has become a part of the work. There is a great demand for grapes in our country every year, so many people want to increase the output and expand the planting area. In fact, when planting to do some management work can also effectively increase the yield, bagging treatment is one of them. So what should we pay attention to when bagging? Let's take a look at it with the editor.

1. Calcium supplementation for young fruits

Bagging is usually carried out when the fruit is not fully ripe, that is, when the grape is young. The young fruit stage is also the key period for the fruit to absorb calcium, which will be transported to the fruit with water, but if bagged earlier, it will affect the fruit's absorption of calcium. If the lack of calcium, there will be the first leaf death, cracking fruit and other phenomena, leaf death will also reduce the accumulation of nutrients in the fruit, resulting in the decline of fruit quality. Therefore, before bagging, we should pay attention to spraying an appropriate amount of available nitrogen fertilizer to promote the absorption of nitrogen elements in fruits and prevent various physiological diseases caused by nitrogen deficiency.

2. Stabilize the tree potential

Before bagging, we should observe the tree potential and decide the bagging time according to the growth of the tree. The growth of the tree is too strong and too weak is not conducive to the development of the fruit after bagging, we should properly adjust the tree position, so that the growth is stable in the medium and slightly prosperous degree. If the tree is too prosperous, the fruit is not nutritious enough after bagging, bagging will affect the nutrition absorption of the fruit, and the reason of being too weak is almost the same. When it is too prosperous, it will use less chemical fertilizer, when it is too weak, it will increase the application of organic fertilizer, supplement the nutrition of the soil, and wait until the tree is restored before bagging.

3. Rational use of drugs

As we all know, trees and fruits should be disinfected before bagging, and we should spray disinfectant at least twice before bagging to eliminate germs and reduce the incidence of various diseases. However, when disinfecting, we should pay attention to the use of disinfectants and pesticides, choose varieties with less damage to the tree, and control the dosage. If the dosage is too much, it can eliminate germs and parasites, but it will also have an inhibitory effect on the tree. Agents such as antimycin and diflubenzuron can be used to avoid spraying at noon and pay attention to comprehensive and uniform spraying.

4. Bagging choice

The choice of bagging is also a more fastidious thing, bagging can not choose inferior and ordinary, such as plastic bags. Because the bagging of the plastic bag makes the fruit completely in a sealed environment, the permeability is extremely poor, neither ventilated nor permeable. The respiration and water evaporation of the tree will produce a lot of water, which can easily lead to rotten fruit. And plastic bags are also very easy to stick to the fruit, causing sunburn and so on. Bagging should choose double-layer paper bags, strong permeability and effective prevention and control of diseases and insect pests.

These are some points for attention in front of grapes. Bagging can improve the quality of grapes. However, if it is not managed well, it will seriously reduce the yield, topdressing and watering in time after bagging, and water and fertilizer management should be done after that. Promote the expansion of fruit, improve the absorption of nutrients and strengthen the quality. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.