How to Cultivate Grapes for High Yield
An introduction to how to cultivate grapes for high yield, explained for netizens. Let's find out together below.
How to Cultivate Grapes for High Yield
Grape management in the summer is a crucial aspect of high-yield grape cultivation. In the hot summer, pruning, wiping out suckers, determining buds, and pinching the growing tip are very important, and fruit management is also crucial. Next, we will learn about the management techniques for grape cultivation in the summer.
Fruit Management
Grape flowering typically occurs from late May to mid-June. The flowering period of grapes is usually related to the climate and variety. On sunny days, the flowering period is generally 6-7 days. The higher the temperature, the shorter the flowering period. If there is continuous rainfall during the flowering period, it will be extended, severely affecting normal pollination.
1. Pinch the side branches to control the growth of auxiliary branches. For varieties with a large number of inflorescences, large inflorescences, and severe flower and fruit drop, 10-12 leaves should be retained on the lateral branches, and they should be pinched 3-5 days before flowering.
2. Remove inflorescences; after the inflorescences are exposed, excessive or weak inflorescences should be removed based on the plant's load capacity. When the inflorescences are expanded, the auxiliary panicles and small flowers at the front of the inflorescence should be removed.
3. Squeeze the tip of the ear. To make the fruit cluster compact, 1-2 auxiliary panicles should be removed from the inflorescence, and the tip should be pinched, with a length of about 1/4 of the full inflorescence, to improve fruit setting rate and berry quality.
4. The number of clusters per plant. Strong branches have 2 clusters, medium branches have 1 cluster, and weak branches have no clusters. The general number of clusters per plant is 10-12.
Scientific Pruning
1. Sprouting
In early spring, there are many buds. In early May, new shoots start growing and leaves unfold. To preserve the tree's nutrition, some flower buds should be removed promptly. The first time, 10-15 days after sprouting, weak buds, dense buds, and unnecessary hidden buds on old vines should be removed as soon as possible.
2. Thinning Branches
7-10 days after the first thinning (usually around May 15th), when the buds are 4-5 leaves long, based on the number of inflorescences and branches, dense branches should be thinned, and dense developing branches, fruiting branches, and weak branches should be removed, and a certain number of fruiting branches and nutrient branches should be retained.
3. Pinching the Heart (ZHANG)
The timing and frequency of pinching new shoots depend on the variety, tree vigor, and pruning method. Early pinching (flower pinching) can inhibit the growth of new shoots, ensure uniform flowering, good pollination, and improve the fruit setting rate. Later pinching can improve the ventilation and lighting conditions on the grape surface, promote flower bud differentiation and fruit development, enrich the vines, and increase yield.
In summary, the key points of summer grape management are discussed from two aspects: fruit management and pruning. Of course, in addition to these, pest and disease control is also a focus. Black rot and downy mildew are common diseases in summer, so remember to take preventive measures.
The above is a comprehensive explanation of how to cultivate grapes for high yield, hoping it can be of help to you.