First, the orchard clearing and disease prevention orchard clean up the weeds and litter, rotting fruit and disease in the garden to reduce the breeding of orchards and pests in the orchards. Pest control is also carried out at the time of clearing the garden, and 5 Baume degrees of lime sulfur can be used to spray the whole garden.
Second, the spring fertilization watering soil after thawing, fruit sprouts, we must seize the time to apply bud bud fertilizer, flower after 7 to 10 days after flowering fertilizer, fruit expansion also apply expansion fruit fertilizer, with quick-effect compound fertilizer, per acre 50 ~70 kg.
Watering in the spring is not only beneficial to the exertion of the fertilizer effect, but also meets the fruit tree's demand for water. First, before germination, when there is less precipitation, watering should be combined with fertilization to promote the absorption of fertilizers, promote budding, flowering and fruiting of fruit trees, and also reduce the risk of late frost. The second is the new tip speed, which is the critical period of fruit tree water requirement. Watering should be 30 to 50 centimeters in soil under water. It is advisable to avoid flooding to prevent the growth of new shoots and affect flower bud differentiation.
Third, the artificial cutting of fruit trees in spring is the supplement and improvement of winter cutting. Generally, it can be clearly identified when the fruit buds are budding. It is best done before the buds are enlarged. In the spring shearing of fruit trees, young trees, weak trees or early flowering varieties should be cut first, and young trees, wang trees and late flowering varieties should be cut afterwards.
For the tall trees in the fruit period, the flower buds with more leaves and more leaves should be selected, and the flower buds with thin leaves and few leaves should be removed. The shoots were trimmed in a 3:1 ratio of growing and resulting shoots. For trees with a large amount of flowers, weak and weak shoots should be properly removed, and strong branches and strong shoots should be reserved. Aging and dense shoots should be renewed. Short and medium length branches should be properly cut, and the remaining fruit branches should not be less than 1/3. For young trees with fewer flower buds, more flower buds should be kept and dense vegetative branches should be eliminated. For young trees, in addition to normal short cuts, the remaining branches should be as long as possible and less short cut. To provoke short branches, remove dense branches and leggy branches. At the same time, for side branches or other standing Wang branches, use sticks, rope pull and other methods.
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