Peach and plum grow relatively fast, especially in some flat land and floodplain in our city. With proper management, it can achieve the effect of planting trees in the same year, flowering in the same year, and results in the second year. If the soil has sufficient fertility, its growth rate is fast, and if you do not pay attention, it can easily cause madness. Therefore, in terms of relative growth, it is more important to control the crown and promote early results.
1. In the first year after planting, "previously promoting post-control" is the key. This is the basis and key to ensuring early fruit production. Former promotion refers to the accelerated growth of seedlings in the period of 4-7 months after the seedlings have been planted and sprouting, and completes all the nutrient growth required for the tree's high yield. Post-control means that the vegetative growth of the tree is controlled in time from mid-July to the end of the month, prompting rapid growth. Flowering, transformation to reproductive growth, to achieve the amount of flower buds required for high yield. The measures are: Immediately after planting, set a dry height of 30-50cm. The natural shape of the tree is appropriate. Keep 3-4 main branches on the main trunk. When the new shoot grows to 30cm or so, it will be picked in time to promote the development of branches. At the beginning of July, pay attention to water and fertilizer control. In the middle of the year, use 15% of paclobutrazol to spray 100-250 times of the whole garden, and then spray it again after half a month, which has obvious promotion effect. Afterwards, depending on the condition of the tree and the flowering effect, it will be supplemented.
2, for the tree growing too busy, the larger the branch of the tree, to immediately stop the application of available nitrogen fertilizer, and 15% of the paclobutrazol 100-250 times spray the whole park, strong treepower by 100-150 times, slightly weaker by 200-250 times, spray again after half a month, and then depending on the condition of the tree and the effect of flower formation appropriate supplements. To achieve the effect of not producing new leaves or new leaves. And increase the amount of pruning, mainly to take large branches, sparsely shearing.
3, trim. Mainly summer shears, supplemented by winter cuts. Lightly cut slowly, open the main angle. Mainly take topping and pulling branches and other methods. Usually 3-4 times a year can be picked up to rapidly cultivate the crown skeleton. In the winter, the long branches and long fruit branches are light and short, the middle and short branches are long, and the long branches are cut or removed. Pruning during the prolificacy period should eliminate the prosperous branches and dense branches on the upper and outer sides, and remove the leggy branches, branches and branches of the disease and insects, and the weak branches in time.
(C), fertilizer and water management. Saplings should pay attention to thin and thin application in the first year of the first year, and should be applied 1-2 times per month from March to May. The application of nitrogen fertilizer is mainly based on phosphorus and potash fertilizer. Promote shoot growth and quickly form skeletons. In the later period, it is necessary to control vegetative growth and promote flower bud differentiation. In July, no more effective nitrogen fertilizer was applied. After entering the high-yield period, it will be mainly applied organically in the autumn and will be applied with compound fertilizer. The time is from October to November. The plant applies 50 kilograms of soil miscellaneous fertilizer. After the fruit is set, the manure and other nitrogenous fertilizers are applied, the hard core is chased with phosphorus and potassium, and the nitrogen fertilizer is controlled. Pay attention to timely drainage in the rainy season.
4, pest control. In order to prevent the main, long-acting short-acting agents alternately used, the combined prevention and treatment combined measures such as comprehensive control, extensive use of high-efficiency broad-spectrum low-toxicity pesticides and biological pesticides to meet the requirements of green food. Pay attention to prevention and control of anthrax, gum, brown rot, borer, maggots, etc. (Hubei Dangyang Agricultural 110 Service Center)
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