The best timing and methods for topping and pinching off grapevines, as well as the pruning of grapevines.

Time and Method for Pinching the Tips of Grapevines

Today, I will introduce the content related to the timing and method of pinching the tips of grapevines in the green plant and flower aspect. Let's get to know more about it together.

Time and Method for Pinching the Tips of Grapevines

The part of the grapevine that is pinched is the young leaves and buds. Removing them allows nutrients to be supplied to the flowers and fruits in a timely manner, thus preventing the branches from growing excessively. The best time for pinching is generally 3-5 days before flowering. There are some methods to determine the pinching time, such as the characteristics before flowering. If there is a color change, it is the best time to pinch, or pinching can also be done when a few buds start to bloom during the early flowering stage.

Benefits of Pinching the Tips of Grapevines

Pinching the tips of grapevines involves removing the growing tip along with a few young leaves, effectively reducing excessive nutrient consumption.

After the pinching treatment, grapevines can effectively regulate the distribution and transportation of nutrients within the plant, thereby coordinating the contradiction between vegetative growth and reproductive growth. This allows nutrients to be concentrated on the needs of effective flowers and fruits, thus reducing nutrient consumption. It is important for preventing excessive growth of grapevine branches, promoting early maturity, increasing yield, and improving quality.

Pinching Location on Grapevines

The part of the grapevine that is pinched is the young leaves and buds. After removal, nutrients can be supplied to the flowers and fruits in a timely manner, thus preventing excessive growth of branches. After pinching, the vine will bloom around April to May, with small white thread-like flowers.

Suitable Time for Pinching Grapevines

The best time for pinching grapevines is generally 3-5 days before flowering. There are some methods to determine the pinching time, such as the characteristics before flowering. If there is a color change, it is the best time to pinch, or pinching can also be done when a few buds start to bloom during the early flowering stage.

Appropriate Height for Pinching Grapevines

The most suitable height for pinching grapevines is 50-60 centimeters, as this is the growing period and will not affect their growth and development.

Method for Pinching Grapevines

Merely pinching the tip of the grapevine is not enough to achieve the desired effect. Therefore, when pinching, the remaining leaves should be more than one-third larger than the normal leaves. Only in this way can the nutrients produced maintain the plant's growth.

Precautions for Pinching Grapevines

When pinching grapevines, it is necessary to ensure that each trailing shoot has two large leaves for photosynthesis. If the growth is too weak and there are many new shoots, pinching should be delayed, otherwise, they will not grow. After pinching, it is important to pay attention to the prevention and treatment of diseases at the wound.

After pinching, the grapevines should be fertilized with a nitrogen-rich thin liquid fertilizer once a week during the stem and leaf growth period, such as thin soybean cake water or compound liquid fertilizer.

The detailed content on the timing and method for pinching the tips of grapevines has been shared above. I hope it can be helpful to you!