Grape Summer Pruning Techniques
The editor introduces you to the experience of green plant maintenance in the method of grape summer pruning. Next, the editor will introduce to netizens.
Grape Summer Pruning Techniques
In the process of grape cultivation management, in order to effectively improve the yield and quality of grapes, management measures such as summer pruning of grapes should be taken. It is the final adjustment of the number of remaining branches based on winter pruning, which has a significant impact on the yield and quality of grapes. Next, the operation method of summer pruning for grapes is introduced.
Timing
For most grape varieties, summer pruning is usually carried out after the grapes sprout and before they shed leaves.
Removing Bud Eyes
Most buds sprout, and when the buds turn green through the eye or down, the branch is smeared. In the early stage of germination, adventitious buds on the main stem and thin and weak buds and basal buds on the fruiting branches of the previous year are removed. When there are 2-3 buds in a section, the main bud should be retained and the secondary bud removed; dense buds should be cleared in time during the growing period; after the beginning of summer, secondary buds and latent buds that have sprouted next to the main bud should be cleared in time.
Removing the Top
When the grapes are just in bloom, a spike can be left on about 6-8 leaves, and the top tender shoot can be removed. When the main grapevine has grown to 16-20 leaves and the reserve grapevine has grown to 8-10 leaves, the grapes can be picked.
Securing the Tips
After the grape inflorescence grows, pruning should be done at a clear position with or without inflorescences where there are few inflorescences, poor development, or dense inflorescences. During pruning, leave a new shoot 10 cm long at a single stake and 10-15 cm long at a double stake, with about 20 new shoots per square meter in the greenhouse. If the fruiting蔓 differentiation rate is low and the plant load is insufficient, in addition to all fruiting蔓, a certain number of developing vines should also be retained.
Thinning Flowers
About two weeks before the grapes bloom, excess or weak inflorescences can be removed. If it is a weak branch, some inflorescences can be left. If it is a strong branch, there is no need to thin the inflorescences.
Tying New Shoots
When the new shoots of grapes grow to 30-40 cm, a three-legged frame can be set up underneath to support them, maintaining good ventilation of the plant while avoiding wind damage.
Removing Auxiliary Tips
After the new shoots of grapes grow, each new shoot will produce some secondary branches. Therefore, after the secondary branches sprout, the entire plant's secondary branches should be removed to prevent nutrient (S-Y) division, causing insufficient nutrients and affecting the growth of the entire plant.
Removing Diseased Leaves
During summer pruning, diseased leaves should be cleared in time to prevent the spread of diseases; we should also clear the yellowing old leaves to facilitate ventilation and light transmission, reducing the occurrence of diseases.
Removing Tendrils
If grape tendrils are left to grow, they will intertwine on the surface of the shelves, causing inconvenience for picking, overwintering, and unloading. Moreover, the growth of tendrils consumes a lot of nutrients, affecting the fruit of grapes. Therefore, it is necessary to pull out the newly elongated tendrils in time during the work of pinching the heart, setting the buds, and pruning the ears.
If summer pruning of grapes is done well, not only is the yield guaranteed, but there are also fewer diseases and pests, and the quality of the fruit is greatly improved. However, if pruning is not done properly, it may have an adverse effect on the yield of grapes and is prone to diseases and pests, so the operation method must be correct.
The above introduction to the method of summer pruning for grapes is hoped to be helpful to you. Don't forget to come and look at more flower maintenance experience and common sense!