Nectarine Fruit Postharvest Management Technology

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. In early-maturing varieties from late May to early June, new shoots and auxiliary shoots that are pruned and then reactivated can still form effective branches, so the pruning can be planned to cultivate new branches and 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, which can be used to alleviate the growth of flower buds by plucking and twisting tips. 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, the basal fertilisers for the fall season were mainly organic manures such as chicken manure, pig manure, and bean cake, and they were mixed with compound fertilizer and nitrogen fertilizer to increase the fertilizer efficiency. Apply 4000-5000 kg of organic fertilizer per acre, and mix 25-40 kg of compound fertilizer. Application method: It 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. Perforation was sprayed with 25% mancozeb 800 times.


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