Pre-rainfall management deepens the ditch to ensure the smooth drainage of the ditch. If there is a diseased fruit, diseased leaf, and timely treatment of the drug, it can be removed if it is too serious and bring it out of the park. Appropriate spraying of calcium, magnesium and trace elements foliar fertilizers to improve the disease resistance of grape plants. Spray a protective bactericide to prepare for the onset of rainfall.
After the rainfall, the most basic management is to timely clean up the orchards after the rainfall, and do a good job of drainage work. It is better to drain the water and clean the ditches while the soil is drained to prevent excessive humidity in the vineyards. The second is to wipe out the shoots in time and keep the grapevines airy and transparent. The appropriate amount of potassium, calcium, magnesium and trace elements were added to improve the function of the leaves, enhance the vigor, and increase the resistance of the plants. In addition, do not be greedy and control the park's output.
Other technical measures If the situation of rot in the field is very serious, the following technical measures may be considered: 1. Application of rain cultivation techniques. This technique is more commonly used, covering the top of the grape covered with plastic film, when the rain goes out of the park with the film. 2, change the frame type. Shear type, V-shaped frame, scaffolding and other ways. Compared with various types of frames, V-frames, scaffolds and other methods can significantly increase the ventilation and light transmittance in the park, reduce the occurrence of diseases and improve the quality of the fruit. 3, cover the film. Covering the film can bring rainfall to reduce soil moisture, reduce orchard humidity and reduce disease occurrence.
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