The fruit tree production practice shows that after the peach tree is picked, in order to enhance the nutrient accumulation of the tree, promote flower bud differentiation, and lay a foundation for many results and fruits in the coming year, the following measures should be taken to manage it.
Fertilizer management through the underground fertilizer and water management, so that the tree quickly absorb and supplement nutrients, the method is peach after harvest, timely topdressing a fast-acting fertilizer, the first fruit tree urea 0.25 kg per plant, adult tree 0.5 kg of urea per plant. . It is necessary to control the use of nitrogen fertilizers to prevent shoots from becoming long and affect flower bud differentiation. A green manure was pressed in July. Combine pest control with foliar fertilizer application. Use 0.3% to 0.5% urea solution in July and 0.3% to 0.5% potassium dihydrogen phosphate solution for 8 to 9 months at 15 days intervals. From September to October, a basal fertiliser was applied in combination with deep plowing and hoeing. The farmhouse organic manure was fully decomposed, supplemented by ternary compound fertilizer. The initial fruit trees use 50 to 100 kg of organic fertilizer per plant, 0.5 to 1 kg of ternary compound fertilizer, 100 to 200 kg of organic fertilizer per plant and 1 to 2 kg of ternary compound fertilizer per plant. Fertilization method can be used ring groove or radial groove, fertilization depth of 30 to 50 cm.
Peach generally receives more rain after harvesting, but it is not necessary to water. If the drought is too long, it can be filled with water as necessary. During the rainy season, the water should be drained to prevent flooding, cultivating and weeding to prevent soil compaction, and freezing the soil before the soil is frozen.
Trim through trimming to make the tree airy and transparent, promote photosynthesis, and form good flower buds. Firstly, the dense branches, the branches of diseases and insects, the branches and branches, the overlapping branches, and the thin and weak branches were removed to improve the light conditions. Soften the angle of the upright backbone and ease the tree potential. For the erect leggy branches on the back, there is a softening or twisting of the growth space, controlling its growth potential, cultivating the resulting branch groups, expanding the resulting area, and eliminating the growth space. The weak branches that droop after the result can be properly retracted to reduce nutrient consumption and promote its rejuvenation. Long fruiting branches can be appropriately shortened and cultivated into compact fruiting groups. At the end of September, topping the uncapped shoots once again to promote the growth of the tissue.
Chemically regulated paclobutrazol can be sprayed on tree crowns to prevent vegetative growth and promote flower bud differentiation. The method is to be sprayed with 15% of paclobutrazol 300 to 500 times solution 1 to 2 times when the length of the new shoot reaches 30 cm and the second branch is to be drawn.
Pest control Pests The major pests and diseases after peach harvest are bacterial perforation, aphids, leafminers, and red spiders, etc., and timely prevention and treatment. The prevention and treatment of bacterial perforation should be based on prevention. From the beginning of June, foliar spray of zinc sulfate lime solution is used. The ratio is zinc sulfate: quicklime: water = 0.5:2:120, once every 15 days. 4 to 5 times; aphids can be controlled by 10% imidacloprid 3000 times solution or 25% hydrazine eugenol 2000 times solution; leaf miners can be treated with 25% diflubenzuron 3 times 1000 times solution; red spider can be used 20% of the Sustained-killed Suspension 3000 times, or 1.8% of the Qishensu Emulsion 4000-fold, or 30% of Motharrin 2000 times.
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