A clear understanding of the impacts and consequences of natural disasters that may occur during grape growing. In view of the characteristics that agricultural production is susceptible to natural climate change, the majority of technicians should have a full understanding of possible natural disasters in the early stage of grape construction and production, and do a good job in all aspects of prevention in advance. Good well, repair irrigation, drainage and other facilities.
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Grape specific measures for drought relief
Cultivar selection
Cultivation with drought-resistant rootstocks or 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 to select suitable rootstocks and cultivars. When using rootstocks, the effects of rootstock combinations on the drought resistance of the whole plant should also be considered. The drought resistance of rootstocks is better: 1103P, 5BB, 3309C, etc.; cultivars can be selected: varieties of oriental varieties in Eurasian species, such as non-nuclear white, Munag, Wensu red grapes, Hetian red, Daqing grapes , Xin Yu and so on.
Cultivation techniques measures
1. Water-saving irrigation can be adopted, such as: drip irrigation combined with film, grass covering, root zone limited cultivation, etc., reducing water evaporation, leakage, and improving water utilization.
2. In the absence of sufficient water supply, reducing fruit load, trimming excessive ears, and controlling proper yield can also reduce the unrecoverable 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 rational use of soil water retention agents.
6. Carry out cultivating loose soil in time to reduce evaporation of surface water.
7. Pay attention to strengthen the comprehensive prevention and control of pests and diseases, and avoid the impact of pests and diseases on aggravating the drought.
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