Pay attention to pre-harvest fertilizer

Precocious pears fill the off-season supply of pear fruit from July to August and have high cultivation benefits. However, due to early fruit ripening, fruit growers often ignore before and after harvest, seriously affecting the precocious pear tree vigor and the second year's yield and quality. Therefore, we should attach great importance to the management of fertilization before and after harvest, achieve high and stable yields, and ensure the benefits of cultivation.

Pay attention to pre-harvest and post-harvest fertilizer

20 to 30 days before harvesting (in early July), topdressing can promote growth, enhance absorption, increase leaf color, increase leaf assimilation, promote fruit enlargement, and differentiate tree flower buds. The top dressing is mainly potash fertilizer, supplemented with nitrogen and phosphorus fertilizers. Post-harvest fertilizer. Pear fruit harvested before defoliation is the storage period of pear trees. This time, the main fertilizer was to increase the leaf color, increase the photosynthetic function, prolong the life span of the leaves, enrich the shoots and buds, and increase the nutrient accumulation of the tree. Fertilizers are dominated by nitrogen fertilizers combined with phosphorus and potassium fertilizers. The number of fertilizers to be chased above and the amount of fertilizer used can be used flexibly according to the growth of the trees, the status of the results, the weather conditions. The top dressing method and the base fertilizer application method are almost the same, and the fertilizer can be applied to a depth of 20 cm. The young tree should master the principle of thin fertilizer, and 3 to 7 months of top dressing 4 to 5 times, each compound fertilizer 100 to 150 grams.

Early base fertilizer

After the fruit is harvested, the grass is used to prevent the bare soil from being exposed, so as to ensure the stability of the soil temperature and water environment. From late September to early October, when the temperature turns cold, the whole garden is mown with a basal fertilizer to cover the grass or cover the trees. Fertilizer amount to produce 1 kilograms of fruit need to apply 1 kilogram of organic fertilizer prevail, generally adult pear tree plant decomposed organic fertilizer 50 kilograms plus compound fertilizer 1 to 2 kilograms. The fertilization method can be carried out along the periphery of the canopy by opening the "well" shape ditch for deep application, or combined with deep plowing of the pear orchard soil, spreading to the soil surface and plowing till the depth is 20-30 cm.

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