1. Pruning: Pruning through winter can adjust the structure of the plant, balance the growth of the next year twigs and fruit growth, and maintain good ventilation and light transmission conditions. The main content of winter pruning is to neglect the useless dense branches, pests and branches, old branches and old branches of the disabled, and to cut the old branches of the year. The main branch is selected for the next year. The pruning method should be differentiated according to the characteristics of the varieties, cultivation techniques, and shelf type. treat.
2, clearing the garden to eliminate insects: Many diseases and pests of grapes will leave the winter with the branches and leaves in the ground, so after the fall of the grapes in the winter, all residual leaves, residues and weeds of the vineyard ground should be cleaned and burned together to avoid giving Overwintering pathogens and eggs leave a hiding place. The weeds and dead leaves that are removed can also be left in the fertilization time and backfilled into the fertilization ditch. After the orchard is cleaned up, the lime sulfur is evenly sprayed on the grape shoots and shelves to reduce the source of winter diseases.
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