Pay attention to the harvest of pre-harvest and early-maturing pears

Early-ripening pears fill the off-season of pear fruit supply from July to August, and have high cultivation benefits. However, due to the early maturity of the fruit, the fruit growers often neglect the harvest before and after the harvest, which seriously affects the tree potential of the early pear and the yield and quality of the second year. Therefore, we should attach great importance to fertilization management before and after harvesting to achieve high yield and stable yield and ensure cultivation benefits.

Pay attention to pre-harvest and post-harvest fertilizer

20 to 30 days before harvest (early July) This topdressing can promote growth, enhance absorption, deepen leaf color, increase leaf assimilation, promote fruit enlargement, and flower bud differentiation. This time, the topdressing is mainly based on potassium fertilizer, combined with nitrogen and phosphorus fertilizer. Post-harvest fertilizer. After harvesting the pear fruit, it is the storage period of the pear tree before the leaves. This catching fertilizer mainly deepens the leaf color, enhances the photosynthetic function, prolongs the leaf life, enriches the shoot bud tissue and increases the nutrient accumulation of the tree. The fertilizer is mainly based on nitrogen fertilizer combined with phosphorus and potassium fertilizer. The number of times of catching fat above, the amount of fertilizer, can be used according to the growth of the tree, the results of the situation, the weather conditions, and flexibility. The method of topdressing and the method of applying base fertilizer are basically the same, and the depth of fertilization is 20 cm. Young trees should master the principle of thin fertilizer and diligence, and apply fertilizers 4 to 5 times from March to July, each time with 100 to 150 grams of compound fertilizer.

Early application of base fertilizer

After the fruit is harvested, the grass is used to avoid the bare soil and the soil surface is exposed to ensure the soil temperature and water environment are stable. After the temperature has turned cold in late September to early October, combined with the application of base fertilizer, the whole garden is mowing the grass or covering the tree. The amount of fertilizer applied is 1 kg of organic fertilizer to produce 1 kg of fruit. Generally, 50 kg of organic fertilizer and 1 to 2 kg of compound fertilizer are applied to adult pear trees. The fertilization method can be carried out along the periphery of the canopy to open a “well” shaped ditch, or combined with the pear garden soil to be deep-cooked, and applied to the soil surface for ploughing, the depth is preferably 20-30 cm.

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