For high-risk varieties and new varieties that have poor performance traits, such as new highs, longevity, and autumn water, high access, change of varieties, and improvement of quality are required. Buds can be planted from September to early October, and branches can be made after mid-October. Longer yields can quickly restore production, while the original old varieties in the tree can also have some production. Usually 3 years old, 15 or more buds; 5 year old trees have more than 50 buds. Immediately after grafting, a new high-fat membrane mother liquor was applied to seal the grafted joints and increase the survival rate of the scions.
Fertilizer and water management 1 time: Pear tree autumn basal fertilizer is generally appropriate in the middle and late September, should not be late as soon as possible. Those who have not completed the autumn basal fertilization before falling leaves must complete it before the land is frozen. 2 Selection of fertilizers: Fertilizers are selected to contain more farmer's fertilizers, which account for more than 90% of total fertilizers. This is the basic fertilizer for long-term supply of various nutrients for pears. Due to the slow decomposition of organic fertilizers and long fertilizers, the root system of pears is sparse and the performance of fertilizers is slow. Therefore, appropriate available nitrogen fertilizers, phosphate fertilizers, and potash fertilizers should be applied. 3 Dosage: Fertilizer application rate should be determined according to age, canopy size, nutritional status, loading capacity, etc., general mature pear trees apply 35 to 50 kg of organic fertilizer per plant, 1 to 1.5 kg of superphosphate, and 0.4 to 0.5 kg of urea. . 4 methods: Fertilization methods are mainly annular groove, radiation groove, the whole garden and so on. The ring groove is to excavate an annular groove at the outer edge of the crown projection, with a groove width of 30 cm and a groove depth of 40-50 cm. The trunk is centered on the trunk and extends along the direction of the horizontal root extension. It is usually 4 to 6, with a width of 30 to 45 centimeters, a depth of 40 to 50 centimeters, and a distance of 1 to 1.5 meters from the trunk. The depth of the trough gradually increases from the inside to the outside. Deeper, narrower inside and outside, this method has fewer roots and is suitable for adult pears. The whole garden is suitable for adult pear gardens and dense pear gardens. It evenly spreads the fertilizer in the garden, combines deep-turning into the soil, and sprays a new high-fat film to increase the fertilizer efficiency.
One root fertilization was managed after fruit harvesting. Root can be used + root irrigation to induce the absorption and utilization of various trace elements in the soil. 2 foliar dressing. The type and amount of foliar fertilizer, potassium dihydrogen phosphate, urea 0.3-0.5%, "new high fat film", once every 10 days, 3-4 times in a row, in the early evening spray absorption, fertilizer effect is high. 3 do a good job of autumn trim. After the fruit is harvested, the forgotten shoots that have not stopped growing are picked up and the dense shoots are removed. Immediately after pruning, smear “wound-resistance and anti-corrosion film†to protect the growth of wound healing tissue, infestation with preservative rot bacteria, soil protection, rainwater pollution, freeze protection, and prevention of chapped wounds.
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