Pear tree autumn management points
1. Hanging branches: The pear branches are soft. When there are a large number of fruits in the fruit period, the fruit branches are mostly sag and grow, and in the case of excessive results, they are easily cleaved. Can be tied in the long hair, the results of the pear branches with a rope hanging on the gills to prevent chapped. Long wooden poles with rakes can also be used to prop up the pear branch in the middle to prevent lychee from being overweight.
Second, pest control: In the fall according to the occurrence of pests, spray 1 or 2 times a month, 50% dichlorvos plus 40% water or 40% dicofol 800 to 1000 times solution, can control locusts, red spiders, pears Caterpillars, pear borer bugs, peach borer bugs, and various leaf curlers. Every 15 to 20 days, 50% of carbendazim wettable powder 500 to 600 times or 70% thiophanate-methyl 800 times is sprayed on the pear orchard, which is harmful to ringworm, scab, and mold, to control the condition.
Third, top-dressing watering: As the new growth of pear shoots only once a year, roughly in July the new shoots stop growing, so there is no control phenomenon of pear shoot growth. In order to promote fruit enlargement and the degree of flower bud differentiation, a quick-acting fertilizer can be topdressed at the fruit's rapid growth stage. Each plant applies 0.3-1.5 kg of NPK fertilizer according to the size of the tree, and 0.3% of the topdressing is applied outside the root. Potassium dihydrogen phosphate 1 to 2 times. Watering in time after topdressing to accelerate the conversion of fertilizers and promote the absorption and utilization of fertilizers. After the fruit is harvested, the basal fertilizer is applied in time to supplement the nutrient consumed by the tree due to a large number of results. The amount of organic fertilizer per plant can be 50-250 kg, superphosphate 5 to 10 kg, and ammonium nitrate 1 to 2 kg according to the size of the tree. The depth should be less than 25 cm. Before the soil is frozen after defoliation, the entire garden is filled with winter water to facilitate the safe wintering of trees.
Fourth, scrape the old skin: pear bark is a wintering place for many kinds of pests and diseases, the wintering pests in the bark cracks are: Pear Care insects, pear caterpillars, pears, pear nets, pears, elephants and pears Wait. The evasive pests are the source of the following year's diseases and insect pests, and due to the lack of lateness of the pear tree skin, it restricts the growth of the trees. Therefore, the old skin should be scraped off in the fall to reduce the base number of the wintering of the disease and insects, so as to lay a solid foundation for the prevention and control of diseases and insect pests in the coming year.
V. Clear Garden: After falling leaves, it is necessary to timely clear the orchard leaves, clear the dead branches, remove the stale fruit, eradicate the weeds around the orchard, and burn them together. For the hanging sticks and the top sticks should be burned in time after use, for picking baskets, fruit boxes to spray insecticide before use.
6. Plowing: Before the soil is frozen, deep plowing should be performed on the whole garden with a depth of 30 cm or more to ripen the soil and promote root growth.
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