After apricot trees have been harvested for a long period of time before they are dormant, scientific management of apricot trees can reduce the occurrence of pests and diseases, promote apricot trees to restore their tree vigor, and accumulate nutrients in trees, laying the foundation for the next year's bumper crops. . Its management measures are as follows:
First, pest control
The diseases and pests of almonds after fruit picking mainly include aphids, spider mites, and bacterial perforation diseases, and should be controlled according to the actual situation. The aphids can be controlled with 10% imidacloprid WP 1500-2000 times or 48% LS 1000-2000 times. Starscotch can be controlled with 20% dying net 2000-3000 times or broom NET 1500 times while using 70% thiophanate-methyl 800-fold or 50% carbendazim wettable powder 500-fold spray control bacterial perforation.
Second, summer shaping pruning
After the apricot fruit is harvested, it is necessary to control the vegetative growth of the tree body, improve the lighting condition inside the tree body, open branches and branches to Wangwang branch, and promote flowering; pick up the new heart, promote branching, and cultivate branch groups. At the same time, combining pruning and topping remove dried stems, pests and branches, thin and weak branches, and legumes, reducing tree nutrient consumption, and improving the ventilation and light transmission conditions of trees, which is conducive to the formation of high-quality flower buds. For overgrown apricots, paclobutrazol can be used to control tree vigor with appropriate amount of roots to facilitate the formation of flower buds.
Third, the management of soil and fertilizer water
1. After the apricot fruit is harvested, the whole park will carry out cultivating loose soil and weeding. Before deciduous, it will be combined with deep application of basal fertilization. The depth is 30-40 cm. It is advisable to close the stems to avoid damage to the trees. The distant stems may be slightly deeper. .
2. Apricot trees should be topdressed with quick-applied fertilizer once after harvesting fruit. Each adult tree can be topdressed with 500 grams of urea and watered after application to make up for the consumption of nutrients in the tree. At the same time, pest control spray 0.3% A mixture of potassium dihydrogen phosphate and 0.1% urea was used to increase nutrient accumulation in the tree and increase the number and quality of flower buds. From late August to early October, Shiji Fei mainly uses high-quality farmyard fertilizers, applying 3500-5000 kg of fertilizer per 667 square meters of farmland and 40-50 kg of superphosphate, and watering after fertilization.
3, in the apricot tree after timely filling of water, is conducive to the growth and development of apricot trees to ensure the normal differentiation of flower buds and shoot growth, if more water can not be watered during this period, while paying attention to drainage. Conditions can be poured once before the soil is frozen to ensure safe apricot tree winter.
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