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1. Rainy season will cause loss of fertility, weaken the tree and reduce resistance. According to the survey, most vineyards are insufficient in nitrogen, phosphorus, potassium and trace elements. Therefore, in the rainy season, according to the loss of fertility of the land and the growth of the grapes, the appropriate amount of fertilization should be based on the method of “less meals and more mealsâ€, and the fertilizer should be applied less and diligently, especially the heavy sand land block.
Top dressing can play a multiplier effect, generally combined with spraying, especially needed, to be sprayed separately. According to the "Agricultural Resources Taobao Guide", the use of sprayed Bordeaux mixture plus 0.5% urea solution and new high-fat film to improve super-efficiency.
2. During the rainy season, especially after heavy rain and heavy rain, the surface of the vineyard will be knotted, the soil will be poorly ventilated, the grape roots will be deprived of oxygen, the tree will be weakened, the resistance will be reduced, and the disease will be susceptible. Therefore, according to the "Rural Taobao Guide", it is necessary to plow the soil once before the flood season. Spray the new high-fat film in the rainy season in a timely manner. Grasp the rainy day gap and cultivate the vineyard to increase the permeability of the soil.
3. During the rainy season, the grapes are the most prolonged, and the incidence of the secondary shoots is very high. It is necessary to pick the grapes in time and wipe off the secondary shoots in time. At the same time, for plants with too many new shoots, it is necessary to remove a part of the plants as appropriate, which is beneficial to ventilation and light transmission, and improves resistance.
4. In the rainy season, there are many rains, lots of water, high temperature and humidity, and the source of the disease is the most easy to spread. If there is a disease in the vineyard, it is necessary to clear the garden at any time, and remove the diseased leaves, diseased branches and diseased fruits in the garden, and bury them deeply. Or incinerate. According to the "People's Taobao Guide", after the Qingyuan Park, the general general sprayed the tree guards into the stone sulphur mixture or Bordeaux liquid or biocide, the effect is better. Other plant crops can also be spray sterilized.
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