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Orchard applied closed-door fertilizers
Orchard pest control requires good use of closed medicine. After the fruits are harvested, early selection of insecticides and fungicides with low cost and good control efficacy will increase the dose to prevent and control the residues of orchard spider mites, aphids, pear nets, blind beaks, and gold-lined moths. Killing the litter on wintering powdery mildew, spotted deciduous disease, ringworm disease, anthrax and other pathogenic spores, can greatly reduce the overwintering base and reduce the next year's prevention and control tasks. After the fruit trees are defoliated, the orchards should be cleared in time. The deciduous, fallen fruit, residual branches, and infested fruits were buried in time or brought out of the park and burned. Combine pruning, remove insects, nests, fruit, diseased branches, and diseased fruits, and timely deep-buried or burned, and carefully scrape the old skin and dry skin. Old dry skin is often the wintering nest of red spiders and other pests, and directing their nest can greatly reduce its base. If rot disease is found, it should be treated as soon as possible, smeared with 40 times the amount of Formamide, or mud control. The trowel method is economical and time-saving, and it rarely re-emits after being cured. It is one of the methods for prevention and treatment of popularization and promotion. The specific approach is: When the disease is found, do not scrape, use the orchard's soil (where the soil can be) and into the mud (to the degree of pinching), wipe the affected part of the disease, the thickness of 3-5 cm, It is 5-6 cm wider than the sickness. When mud is applied, the mud on the sickle must be pressed several times to make the mud tightly integrated with the sickle and then wrapped with a plastic film bag (used in the field). Then wrap it tightly around the rope and tie it tightly so that the mud sticks to the disease and does not allow the water to evaporate. After 1 year, the cover was removed, and the dryness formed in the affected area was peeled off together with the soil to reveal the callus. After the soil in the diseased part was removed, the diseased callus expanded quickly and healed quickly. The trunk is painted white to prevent freezing. The main branch shall be painted white at the base immediately after shaving to prevent cracks caused by the temperature difference between the main trunk and the large branch. The formula of whitening agent is: Lime 7.5 kg plus 1 kg of salt, plus 1 kg of lime sulfur mixture and 18 kg of water. The key to fruit production in the coming year is to use closed-door fertilizers. After the fruit is harvested, foliar fertilizer, dry land dragon or amino acid, rare earth, etc. are sprayed in a timely manner to prevent frost and drought, increase nutrition, prevent stripping, and promote flower buds full and robust trees. For tree species that cannot be sprayed with leaves after being defoliated, a 802-amino acid plus gum tree can be applied to the trunk. Method is: the amino acid diluted 3 to 5 times the trunk 30-40 cm, 10 minutes after the Paul tree collagen to smear it again to prevent evaporation of liquid fertilizer. Under the canopy, the base fertilizer should be dominated by high quality decomposed chicken, pig manure and other organic fertilizers, supplemented by chemical fertilizers and supplemented with micronutrients. Strive to supply 1.5 kg of high-quality organic fertilizer per kilogram of fruit to ensure at least 1 kg of fruit 1 kg of fertilizer. Add 1 kg of superphosphate per 50 kg of organic fertilizer. Soils in the northern region of the country often suffer from iron deficiency, zinc deficiency and other trace element deficiencies. For example, iron deficiency can be mixed with ferrous sulfate and organic fertilizer in a ratio of 1:5. Pay attention to the application of the fertilizer should not be mixed with phosphate fertilizer, because of phosphorus and iron antagonistic effect. Such as zinc deficiency, can be combined with zinc sulfate in early autumn when applied, young trees 100-150 grams per plant, the results of each tree 200-800 grams. In winter, base fertilizer should be applied in the form of ring grooves or radial strips, and the fertilization sites should be alternated year after year and water should be applied after application.