After the nectarine fruit is harvested, it is necessary to carry out systematic pruning and fertilizer management on the tree body.
prune
Control the tree. Sparse long branches and long branches that are not useful, leaving space to cultivate the result groups, retracting fruitful long branches and oversized branches, and recultivating the branches. According to the size of the tree and the space, the backbone branches are properly thinned and retracted.
Cut off diseased branches and promote flower bud differentiation. Cut off the weak branches, pendulous branches, dense branches, and split branches to concentrate nutrients and promote flower bud differentiation. If there is space near the weak branch, it can leave 2-3 buds short, promote new shoots, and eliminate space if there is no space; if there is space for the pendulous branches, 2-3 shoots can be retracted and the short branches can be rejuvenated. ; Cut off litchi and snags at the break.
Update the renewal branch and cultivate new fruit branches. Fruiting branches that are fruitful can be shortened and new branches can be promoted; weak branches can be shrunk and cut on the secondary branches to make them rejuvenate.
After pruning, a lot of new shoots and auxiliary shoots are sent out, and the growth potential can be alleviated by picking up the hearts and twisting shoots to promote flower bud differentiation. By the time the temperature dropped in the later period, the growth of the shoots was slow. When the growth was nearly stopped, a thorough clean-up was carried out to eliminate the useless branches that were too busy and too weak to improve the light and cultivate strong fruit branches.
Soil and Fertilizer Water Management
In order to promote the rapid restoration of tree vigor after harvest, increase the number of new shoots and promote the further growth of the root system, a topdressing and irrigation should be performed after pruning. Fertilizer is mainly nitrogen fertilizer, about 25 kg of Mushi, with phosphorus, potash fertilizer. After mid-September, basal fertilization was performed in the autumn, and organic manure such as decomposed chicken manure, pig manure, and bean cake was mainly used, and compound fertilizer and nitrogen fertilizer were appropriately mixed to increase fertilizer efficiency. Apply 4000-5000 kg of organic fertilizer per acre, and mix 25-40 kg of compound fertilizer. Application method: Can be applied on the ground and plowed and watered after application. During the rainy season, it is necessary to remove the water from the tree plates to prevent rooting and ensure the normal growth of the tree.
Pest control
When aphids and mites were produced, 10% imidacloprid 2000 times solution was used, and 15% daidzein 1500 times solution was sprayed. For prevention of perforation, 25% mancozeb 800 times can be sprayed.
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