Potted grapes are not easy to compare with ordinary grape cultivation. Its root area is relatively small, and the nutrient absorption is limited. Therefore, there are more requirements for pruning of branches and leaves. In addition to germination of potted grape plants, potted grape pruning should be topped and sparse. Thinning and other requirements are required to meet the growth needs of potted grapes.
Next, Xiaobian will explain the techniques of potted grape pruning for everyone:
The spring buds of the spring grape have been swollen, and the weak buds that are improperly placed and overly dense are wiped off by hand before germination. When the inflorescence appears, smear again. At this time, the buds have been opened, and the presence or absence of the spikes and the strength of the branches can be discerned. The branches are shortly left with 2 to 3 buds, and the long leaves are 3 to 4 buds, and the other buds are wiped off. The buds from the root minister are also erased. Any growth will consume a lot of nutrients, which will affect the growth of other branches, and it will be revealed that there are bud spots exposed immediately.
Tendril
The tendril is the grip of the grapevine climbing the other to support the upward growth of the branches. Artificially cultivated grapes can be used for free climbing without the need for tendrils. The growth and development of tendrils also consume nutrients and should therefore be removed.
Topping
Topping of new shoots not only has a great influence on flowering and fruit setting, but also plays an important role in promoting the formation of flower buds. On the other hand, potted grapes should be mainly short, not too tall, so the new topping also plays a role in inhibiting the development of grapes to high places. The time of picking the new shoots with inflorescence is best in 3 to 7 days before flowering, leaving 7 to 8 leaves to pick the heart when about 15 leaves, so that the nutrients turn to the inflorescence to promote flowering. After the new shoots are picked, the leaves on the branches become larger, and the summer buds between the leaves grow into the secondary shoots within 10 to 15 days, and the winter buds begin to expand, which is beneficial to the formation of flower buds.
Secondary tip processing
After the new shoots are topped, the secondary shoots will grow. The top and the secondary tips that grow in the topping are left with 4 to 5 leaves, and the other secondary tips are left with 1 to 2 leaves. After the secondary tip is topped, the secondary and tertiary tips are grown, and the same method is used to repeatedly pick the heart, so that the branches are continuously enlarged and enlarged.
The time to remove the flower spike from the flowering spike is good at the end of the flowering period to the end of the flowering period, and the prematurely thinning panicle shape disorder is not effective. First remove the secondary ear, then remove 4 to 5 fulcrums at the base of the ear, and then remove 1/5 to 1/4 of the ear. In the case of too many spikes in the whole plant, strong branches leave 2 spikes, weak branches do not leave spikes, and Zhongyong branches leave 1 spike.
Thinning ear and thin fruit
After the grapes are flowering the fruit, the small, crowded, deformed ears are removed, called the thinning ears. Remove the fruit that is stunted or crowded in the ear and has no space to expand it. It is called fruit thinning.
The winter shears of the grapes should be carried out after the fall leaves in the winter and until March of the next year. Premature pruning will release the grapes from hibernation. After waking up, the sap begins to flow. If pruned, it will cause loss of nutrients and weaken the body. Winter pruning is mainly deforestation, short cuts and updates.
Exclude
The thinning is also called thinning, which is to cut out the dense, too fine branches. Longer weak branches between the nodes. The well-growth branches are swollen with short nodes at the internodes and the nodes are raised. The buds are full and the round branches are round.
Short cut
In order to make the above-ground part of the potted grape and the underground part of the plant shape should not be too large and too high. When pruning a grape, it is necessary to take into account the length of each branch, which is conducive to better bearing the light. Generally, the long branches leave 6 to 10 buds, the middle branches leave 4 to 6 buds, and the short branches leave 3 buds.
Old branch update
Grape vines are prone to aging, and the results of aging branches are low. New branches are needed to replace the old branches, so that the resulting mother branches are often in a state of vitality.
As a result, the update of the branch group is most common with double branches. The operation method is that the mother branch to be replaced is short in winter, and the next branch is left with 2 buds, and the spring 2 buds grow into new branches, and then in winter, the upper branch is used as the mother branch, and the next branch is reserved. The original old branches are cut off from the base of the branches. Another method is to update a single branch. In the winter, only one fruit branch is left in the pruning. After the germination in the next year, the good new shoots in the lower part are selected as the mother branches, and as the new branches, the upper new shoots are cut off in the winter.
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