Post-harvest management of nuclear-free yellow skin

The harvest period of the nuclear-free yellow skin is in the middle and late July, and how to manage the result tree after harvesting will directly affect the yield and quality of next year. The autumn shoot is the result of the yellow skin, and the quality of the autumn shoots is bound to affect the quantity and quality of the flower buds. In order to lay a solid foundation for the high yield and stable production of the following year, and to cultivate a robust autumn shoot, the following management measures can be taken for the result tree after fruit picking:

First, the pruning and buds will be fully trimmed and trimmed immediately after harvesting the fruit, which will promote the tidy sprouting. Short-cut the resulting mother branch, cut off the ear at the top of the result, remove the dead branches, diseased branches and weak branches; rationally shape the tree, such as taking the top of the skylight, retracting the long branches, and removing the dense branches The tip forms a well-rounded tree. After about 10 days of plastic trimming, before and after the fall, the shoots begin to sprout and shoot the autumn shoots, especially the shoots that are treated by short cuts, and the top two shoots are selected, and the rest are all erased, which is beneficial to concentrate nutrients and pump. Strong branches.

Second, the fertilizer and water management immediately applied to the result tree to promote the shoot fertilizer, the result tree was sprayed with 40 kg of biogas slurry or 40 kg of decomposed peanut bran and manure water for each plant, the second application of strong-fertilizer fertilizer, and each plant was sprayed with biogas slurry. 40 kg plus 1 kg of superphosphate and potassium sulphate. Sprinkle water in the tree tray as much as possible, which is beneficial to the root system to evenly absorb and prevent the loss of water and fertilizer. The first autumn shoot must be mature in early September, and the late autumn shoots should not be later than the first half of November. After the formation of late autumn shoots, water and fertilizer should be banned to prevent winter shoots. Pay attention to the supply of water during the cultivation of the autumn shoots, especially in the germination period and drought, always spray water to keep the soil moist.

Third, pest control The common pests and diseases of the seedless yellow skin are: anthracnose, leaf miner, pteridophyte, white moth, cockroach, beetle and so on. Leaf miner and Swallowtail larvae. It can be controlled by 1000 times of Wanling or 2000 times of insects. The white moth wax can be smashed and killed 800 times. The spawning eggs on the shoots cause the autumn shoots to die, and the eggs are burned off in time. The beetle is mainly harmful to the branches. When the shovel is found on the trunk, it can be injected into the insect tract with trichlorfon or blocked with the cotton sputum. In the young shoots, it is easy to infect anthracnose in rainy days. It sprays 1000 times of manganese zinc before the rain, and it is sprayed with methyl thiophanate or chlorothalonil 1000 times after the rain.

Fourth, the winter shoots control winter warm weather is easy to induce winter shoots, the winter shoots will inevitably consume the autumn shoot nutrients and affect the flower bud differentiation, so the formation of winter shoots must be strictly prevented. The control methods of winter shoots include: combining the root-embedded base fertilizer in winter, controlling the water by drying the roots, so that the roots of the tree are controlled in a certain drought state, forcing the tree to sleep; another method is to use 0.15% after the autumn shoots are fully matured. Paclobutrazol, which is sprayed three times in a row for 20 days, can effectively inhibit the formation of winter shoots.

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