It is necessary to have a clear understanding of the natural disasters that may occur during the grape growing process and the consequences. In view of the fact that agricultural production is vulnerable to the impact of natural climate change, the majority of technical personnel should have a full understanding of possible natural disasters during the early stages of the construction of the vineyard and in the production process, and do a good job in prevention work in all aspects in advance. Good well, repair irrigation, drainage facilities and other facilities.
Selection of cultivars
The use of drought-tolerant rootstocks or the cultivation of drought-resistant grape varieties is also an effective way to solve or mitigate the effects of drought. Different cultivation areas should be combined with the actual conditions of each place, and suitable rootstocks and cultivars should be selected. When using rootstocks, the impact of the combination of rootstocks and panicles on the drought resistance of the whole plant should also be considered. Good rootstock drought resistance: 1103P, 5BB, 3309C, etc.; cultivars can be selected: European and Asian species in the Eastern varieties of varieties, such as seedless white, wood Nag, Wensu red grapes, Hotan, Daqing grapes Xin Yu and so on.
Cultivation technology measures
1. Water-saving irrigation methods can be used, such as: drip irrigation combined with plastic mulching, grass mulching, and root-limited cultivation, etc. to reduce water evaporation and leakage and increase water use efficiency.
2. Under conditions where there is insufficient water supply, reducing the fruit load, trimming too many ears, and controlling the appropriate yield can also reduce the irreversible effects of drought on the tree.
3. Change the original drainage ridge cultivation to open small irrigation ditch cultivation, improve the utilization of existing irrigation water.
4. In the aspect of fertilization, reduce the application of nitrogen fertilizer, increase the application of organic fertilizer, and improve the water retention performance of the soil.
5. Foliar application of 0.5%-1.5% calcium acetate can improve the drought resistance of grape plants, or the rational use of soil water retention agents.
6. Timely cultivating tillage to reduce evaporation of surface moisture.
7. Pay attention to the comprehensive prevention and control of pests and diseases to prevent the occurrence of pests and diseases from aggravating the effects of drought.
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