Due to continuous droughts in the winter and spring, winds and cold days have caused many vines to pluck. In addition, last year's grape production was higher than in previous years, which directly led to the “overdraft” of the nutrient components of the grape stems, the lack of nutrients in the plants, and the ability to withstand cold and drought. It weakens, and it is more likely to occur in the winter and spring seasons, which will have a slight impact on the normal growth of grapes in the following year. When pruning in early February of this year, some vines still grew normally, but in the first three months of April, the normally growing branches began to appear hollow and dry, and new larvae appeared. The vines that are not drawn are also younger than in previous years. The growth of the vines is very weak. The growth is slow and development is delayed. Nearly a third of the vines do not germinate. Failure to germinate will not result, and this year the grape will face severe production cuts, a phenomenon that has not been encountered in recent decades.

How to manage this situation? First of all, grape growers can't drop them. This will affect the output of the next year or even the following year. Therefore, it is necessary to strengthen the management of the vines that have sprouted and to remediate them in time. The specific remedial measures are as follows:

First, timely control of Daqing leafhopper and tree dumplings. Oviposition of spurs of T. oleifera spawning spurs causes excessive wounding, which causes transpiration and dehydration of shoots, resulting in the loss of water in a large number of shoots; the spurs of tree twigs suck and drink sap from the shoots and cause excessive wounds, resulting in loss of nutrients. Death with water. Should be promptly controlled: can be used avermectin, imidacloprid, pyrethroids and other pesticides mixed with 0.1% to 0.2% of the washing powder control.

Second, timely watering, keep the soil moist, to ensure the water content of grapevine body. When irrigation, it is better to change the ditch irrigation to sprinkler irrigation, and the smaller the water droplets sprayed, the better. It is best to “smell the material.” Let the shoots also absorb enough water to ensure that the nutrients are transported to the buds and the water needed for the buds to grow. , to prevent the emergence of new shoots due to the lack of moisture and nutrients grow slowly, or do not grow atrophy and finally fall off. Should be filled once every 10 to 15 days according to weather conditions. Each irrigation should be filled with irrigation, water penetration to the main root distribution layer, generally required to reach 60 to 80 cm deep.

Third, top dressing. It is imperative to quickly catch up with some available nitrogen-based fertilizers to meet the needs of nutrients for the growth of the buds.

Fourth, in the trunk near the ground 0 to 50 cm at the base of spraying biological regulators, such as algalactone can promote the transport of nutrients to vulnerable areas, enhance the vine itself resistance, regulate and promote the growth of vines, In order to avoid being "injured" again, it is guaranteed to harvest as much of the output as possible and minimize losses. It is also possible to apply or spray some pure amino acid solution on the base of the plant near the base of 0 to 70 centimeters, 2 to 3 times the water to ensure that the shoots have sufficient nutrients for growth.

Fifth, timely shallow watering after watering, moisturizing, increase the temperature, remove weeds, enhance the permeability of the soil, in order to facilitate the occurrence of new roots and promote root absorption of nutrients.

Sixth, science pruning. After drawing in the spring, the upper branch is selected as the result branch, and the lower branch is the regenerating branch. The result is not allowed. When pruning in winter, the result branches were all cut off, and the new shoots left 2 buds as the result of the next year. For grapes that do not germinate, cut the dry branches, keep the grape buds without frost damage, fertilize and fertilize the water, strengthen management, and wait until the temperature rises. The buds of the roots of the grapes can also sprout new shoots and wipe the buds in time.

7. Do not germinate or germinate weak vines between legumes. In some plots with severe plots, the grapes grow thin, the leaf area is small, and there is more free space. In order to reduce the losses caused by grape production reduction, some short legume crops such as peanuts and soybeans can be interplanted between rows. , mung beans, red beans, non-stick beans, etc., can not only raise land, but also increase part of income.

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