Several problems that must be paid attention to in the production of grape dill
1. To build shelters in a timely manner: In order to effectively control downy mildew and gray mold, shelters must be built before the end of May.
2, timely pruning break sleep to promote Meng: When the branches matured to 80%, in the picking heart bud retraction. General trimming in June and July, treated with dicyandiamide, sleep break.
3, rational close planting and control of production
(1) Strictly control the amount of shoots: Generally, 2500-3000 sticks are left in the mu.
(2) Determine the number of acres of mussels: 2500 red spikes, 3000 winter spikes, Victoria 3000 spikes, and 2500 spikes.
4. Scientific and rational fertilization: The first 15 days of pruning apply 50-100 kilograms of balanced and controlled release fertilizer per 500 grams of granular boron, 400 grams of granular zinc, and 5 kilograms of balanced water soluble fertilizer per mus of young fruit, 7-10 days Once, coloring to mature mu with high potassium water soluble fertilizer 5 kg, 7-10 days once.
5, standardized comprehensive control of pests and diseases: As the grape dichotomanthus production in a high temperature and humidity conditions, is a high incidence of various pests and diseases. Focus on prevention and control of downy mildew, gray mold, powdery mildew, thrips, fleas, mites, lice and other pests and diseases.
6, timely bagging: my county in autumn and winter ultraviolet light strong, leading to rapid coloration and deep grape, poor fruit powder, it is recommended to early bagging, anti-pigment color, fruit powder less, affect the appearance.
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