First, the good winter pruning off winter pruning should be in place: to achieve ventilation, light transmission, large, medium, small branch group configuration is reasonable, vegetative branches and the results of a reasonable configuration of the branches, the upper branch group and the lower branch group configuration is reasonable.
Second, the good fruits and vegetables to strictly control the tree load, according to the "fruit ratio of 3:1, leaf ratio of 10:1 or by a distance of 25 to 30 cm to leave a fruit" principle strict thinning fruit. The amount of fruit left per acre is 2500-3000 kg.
Third, the removal of good pests and diseases in addition to the timely treatment of apple ringworm disease, rot disease, anthrax, mold heart disease and peach borer, pear small spot borer, red and white spider, leaf miner and other pests and diseases.
Fourth, the management of fertilizer and water management with good fertilizers is the basis for the success of apple production. There are two things to do: First, focus on key waters, including germination water, fruit cell division water (first fruit expansion water), and fruit volume increase. Water (the second expansion of fruit), frozen water. Second, fertilization is dominated by organic fertilizers, and fertilization is applied using formula fertilization. Apply 2 to 3 squares of organic fertilizer per acre, accelerate 100 to 150 kg of NPK fertilizer, and 10 kg of trace element fertilizer.
Fifth, the balance of good nutrition elements bagging fruit calcium deficiency disease that is very serious black spot. Should pay attention to prevention and treatment. After spraying, it began to spray 3 to 4 times of ammoniacal calcium or quick-acting calcium in half a month, and sprayed once every half month after spraying. When chemical fertilizers are used, chemical fertilizers and organic fertilizers are preferably mixed before application, which can reduce nutrient elements from being fixed in the soil and reduce antagonistic effects between nutrient elements. Appropriate application of nitrogen fertilizer, reduce the amount of nitrogen fertilizer.
Sixth, the quality of a good bag selection of good permeability, anti-aging, anti-corrosion quality fruit bags, it is best to use the regular manufacturers of brand-name fruit bags, such as brigades, bags and other morning Yang Yang.
Seventh, the good bagging fruit parts of the off in the "canopy in the lower sets, the upper part of the set; peripheral branches less sets, the middle branches; sets of branches with fruit and fruit, oblique branches, drooping Zhuangzhi sets The principle of direct sunlight is not enough, scattering light fruit multiple sets of "principle bagging.
Eight, the bagging period of the closed bag bag to drop the second half of the young fruit after the diameter of 2 to 3 mm can be bagging. Before bagging, the entire park carefully sprayed to prevent and treat pests, and immediately bagged after the medicine was dry. Rainfall in bagging should be re-smeared after bagging.
Nine, the quality of a good bagging fruit selection inclined students, drooping fruit, Zhou Zhenggao piled fruit, fruit surface smooth without injury to carry bagging.
X. Choose good pesticides to choose green pesticides that are pollution-free and harmless to fruit trees, such as lime sulfur, pure carbendazim, and Tianjin for pest control. Choose brand-name pesticides from regular manufacturers.
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