What medicine is good for preventing and treating grape cracking?
A comprehensive introduction to the green plant maintenance tips on what medicine is good for preventing and treating grape cracking, the following editor will introduce to you.
What medicine is good for preventing and treating grape cracking?
When cultivating grapes, grapes may crack. So what medicine should be used for prevention? Let's find out below.
What medicine is good for preventing and treating grape cracking?
Grape cracking can be sprayed with gibberellin 45ppm 7-10 days before flowering. Bagging can also reduce the degree of fruit cracking to some extent; when the weather is dry, a small amount of watering or frequent watering can also reduce the occurrence of fruit cracking. The application of calcium and potassium fertilizer not only prevents grape fruit cracking but also increases the glucose content of grape fruit.
What are the reasons for grape cracking?
Sharp changes in moisture
If continuous drought leads to poor development of the first grape expansion period, the expansion of the peel tissue is very small, and there is long-term rainfall during the coloring period, excessive moisture in the fruit flesh, causing the swelling pressure to rapidly rise in a short time, leading to fruit cracking.
Lack of calcium and boron
These two elements are related to the composition of the cell wall and the cell wall layer. Once deficient, it will affect the elasticity of the peel and exacerbate the occurrence of fruit cracking.
Excessive pressure between fruit grains
If the ear is not pruned in the early stage and the ear is large in the later stage, the fruit grains will crack due to lack of space and mutual pressure.
Abuse of regulators
If the grape fruit has not waited for the color to start turning red and is催red with ethephon, it will lead to grape cracking. In addition, diseases such as powdery mildew, black spot, and pest infestations can also cause grape cracking.
The detailed explanation of what medicine is good for preventing and treating grape cracking shared above is for reference and suggestion only!