Don't be careless after picking peaches. You have to do it well.

The production practice of peach trees showed that the following measures should be taken to strengthen the nutrient accumulation of peach trees, promote the differentiation of flower buds and lay a foundation for more fruits and larger fruits in the next year.

Don't be careless after picking peaches. You have to do it well.

  Fertilizer and water management through underground fertilizer and water management, so that the tree quickly absorb and supplement nutrients, the method is peach harvest, timely application of a quick-acting chemical fertilizer, early fruit trees with 0.25 kg of urea per plant, mature trees with 0.5 kg of urea per plant. It is necessary to control the amount of nitrogen fertilizer used to prevent branches from lengthening and affect flower bud differentiation. Press green manure once in July. Foliar spraying with 0.3%-0.5% urea solution in July and 0.3%-0.5% potassium dihydrogen phosphate solution in August-September was carried out with 15 days interval. From September to October, the basic fertilizer was applied once in combination with deep ploughing and expanding field. The organic fertilizer was mainly decomposed and the ternary compound fertilizer was supplemented. In the initial fruit stage, 50-100 kg organic fertilizer per plant, 0.5-1 kg ternary compound fertilizer, 100-200 kg organic fertilizer per adult tree and 1-2 kg ternary compound fertilizer were applied. The method of fertilization is circular ditch or radial ditch, and the depth of fertilization is 30-50 cm.

  After peach harvesting, there is usually more rainwater, so it is not necessary to water. Some dry periods are too long. Water can be used to supplement moisture. In rainy season, drainage, waterlogging prevention, cultivation and weeding should be carried out to prevent soil from hardening. Frozen water should be poured once before frozen soil is frozen.

  Timely pruning can make the tree ventilated and transparent, promote photosynthesis and form good flower buds by pruning. Firstly, over-dense branches, disease and insect branches, splitting branches, overlapping branches and weak branches were removed to improve light conditions. Soften the opening angle of the upright backbone branches and ease the tree vigor. For erect and elongated branches on the back, there are softening or twisting shoots in growth space to control their growth potential, cultivate fruiting branches, expand fruiting area, and eliminate no growing space. In order to reduce nutrient consumption and promote its regeneration and rejuvenation, the sagging weak branches after the results can be retracted appropriately. For long fruit branches, they can be appropriately truncated and cultured into compact fruiting branches. At the end of September, new shoots without capping were plucked once to promote tissue growth and enrichment.

  Chemical regulation can spray Paclobutrazol on the crown of overgrown trees to control vegetative growth and promote flower bud differentiation. The method is to spray 15% PP333 300-500 times liquid 1-2 times on the crown when the length of new shoots reaches 30 cm and the secondary branches are to be sprayed.

  The main pests and diseases after peach harvest are bacterial perforation disease, aphid, leafminer moth, red spider and so on. The prevention and control of bacterial perforation should be based on prevention. From early June, zinc sulfate lime solution was sprayed on the leaves with the ratio of zinc sulfate: quicklime: water = 0.5:2:120, once every 15 days, 4-5 times in total; aphids could be controlled with 10% imidacloprid powder 3000 times or 25% aphid lice tachylactone 2000 times; leafminer moth could be controlled with 25%. The results showed that 1 000-fold solution of Metronylurea No. 3 could be used to control spiders; 2 000-fold solution of 20% Metronylurea suspension, 4 000-fold solution of 1.8% Olivomicin Emulsion, or 2 000-fold solution of 30% Metronylurea Emulsion could be used to control spiders. (Zhongtao)