Fruits from autumn to the beginning of winter are mainly fruit development and fully mature harvest period, and it is also a critical period for fruit nutrient accumulation and flower bud differentiation. Strengthening management during this period can increase the output of the year, promote flower bud differentiation, and increase the cold resistance of fruit trees.
First, it is indispensable to top-dress fertilizers to catch up to the first-in-sequence available phosphorus and potassium fertilizers, 1-1.5 kilograms per tree, in order to increase the yield and lay the foundation for flower bud differentiation next year.
Second, we must spray fertilizer every 10 days to spray 0.3% of potassium dihydrogen phosphate 2-3 times to promote new shoots mature, and increase fruit coloring and increase sugar content. After the fruit was harvested, 0.5% urea solution or 0.3% potassium dihydrogen phosphate was continuously sprayed twice every 10 days to prevent the leaves from falling off prematurely and extending the leaf growth period. For varieties with serious fruit drop before harvest, nafting of naphthaleneacetic acid or naphthaleneacetic acid sodium was successively sprayed 20 times for 20 days before harvesting.
Third, to prevent pests First, artificial removal of anthrax fruit. An orchard with bitter pit disease, which sprays 0.5%-1% calcium chloride 3 times in a row every 3 days; spray speed kills 1000 times of the liquid plus 50% of the trehalose-removing 800 times liquid to control the apple fruit borer, fruit tree Deciduous oak, early deciduous fruit trees, etc. The second is to continue to prevent rot disease. Rehabilitation agents or rot essential extracts can be used. The third is to spray 40% omethoate 1000 times in the orchard, which is seriously damaged by Daqingye, and bring the diseased leaves and diseased branches out of the park and burned or buried deeply.
Fourth, to apply the autumn fertilizer fruit harvested after the use of ring groove or deep digging method, the results of each tree 150 kg of manure applied, and mixed with 1-1.5 kg of NPK fertilizer, fertilization when you want to replace the previous year The location of fertilization. Shi Qiu Fei needs to be combined with irrigation, and the time is set at the beginning of October.
Fifth, to turn the tree tray in the new shoots stop growing fruit for autumn ploughing, after the autumn plough must be smashed clods, the depth of the autumn plough to 20-30 cm is appropriate, the time in early October.
Sixth, to irrigate winter water to irrigate winter water mainly to protect the root from freezing injury, reduce the occurrence of pumping, irrigate winter water must be poured enough irrigation, depth is less than 1 meter, time in late October.
Seven, to scrape the old skin in the tree after entering dormancy to remove the old skin, pay attention to moderate, do not hurt the shoots, the old skin hidden in the leaf roller moth larvae and red spider mites adults and other wintering pests after scraping even the old skin The slag was burned together and it was carried out in early November.
Eight, to the white trunk of trees in the winter before the advent of the main trunk of fruit trees, the specific method is to prepare a good whitening agent brush evenly on the trunk of fruit trees, the height of the general branch to the trunk.
9. The fruit trees that need to be cultivated to protect the cold and cold regions need to be protected from the cold. For 1-2 year-old saplings, the saplings can be overburdened, taking care not to damage the tree trunks. Time is in early November.
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