Rational fertilization is dominated by organic fertilizers, supplemented by inorganic fertilizers, and should be applied sooner rather than later. It is required to apply them from early October to mid-November. The farmyard fertilizers are mainly cooked, supplemented by chemical fertilizers. In general, 3000-4000 kg of organic fertilizer, 10-15 kg of potassium fertilizer and 30-40 kg of phosphate fertilizer are used per acre.
Spraying leaves protect against diseases such as powdery mildew, rust and downy mildew. Combined with disease control, 0.3% urea and 0.5% potassium dihydrogen phosphate can be used as extra-root fertilizer, which can protect the leaves and promote the aging of branches, so that leaves normal physiological defoliation.
After the full-scale clearing of the park, the grapes are completely cleared of field and racking fruit and leaves of deciduous leaves. The park will be buried and burned to reduce the source of the disease. After clearing the garden, the lime sulfur of Baume 3 to 5 degrees will be used to treat the surface and ground. Spraying at the same time to conduct a complete cleansing.
Pruning The pruning can be used to adjust the tree structure of the grape plant, balance the growth of the branch and the growth of the fruit, so that the branches spread evenly on the shelf, and maintain good ventilation and light transmission conditions. The pruning of grape plants is generally started after 2 weeks of natural defoliation of the grape plants. In the case of no need to cover the cold areas, the pruning time can be continued until the second year after the plants begin to grow.
The prevention and control of pests and diseases after pest control can ensure that the trees grow robustly and reduce the source of the disease the following year. White rot, downy mildew, anthrax, etc. can be treated with alternatives such as carbendazim and thiophanate methyl. After the winter cuts, the branches will be cut and the fields will be taken out. 4 to 7 days later, with 3 °C ~ 5 °C lime sulfur agent in the entire garden Qingyuan sterilization insects once to eliminate the source of pests in leap year. Http://Content/b6326f87-b290-48c2-8e28-fbc37ba9f515?cType=2
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