1. After the peach tree is harvested, it is necessary to remove the plastic film and turn it to open cultivation. The best time to remove the film is after 5 days of exhalation exercise, so that the peach plants in the shed get a certain degree of resistance, and then remove the film. If all the membranes are directly removed, physiological obstacles are likely to occur, such as yellowing of the leaves in different degrees of the plants, seriously affecting the normal growth of the plants, poor flower bud differentiation, and storage of nutrients in the tree body, thereby affecting the yield of the plants.
Second, post-harvest pruning peach fruit harvesting should be promptly carried out in summer trimming, such as wiping buds, wipe shoots, topping, sloppy and so on. As a result of the fruiting branches on the peach tree in the greenhouse, the leaves have been aged after a long period of growth. Even if flower buds are formed, the high-quality flower buds are relatively small; in addition, if the original result branches continue to grow, the trees will be easily closed. Therefore, it is necessary to carry out sparse cutting of the original result and trigger new results. Because the upper and outer shoots are overly prosperous after trimming and cover the sun, the lower part and the inner part of the shoot are difficult to see light, and the growth is weak (that is, strong and weak, and strong and weak), so they should be strictly in accordance with the original Tree shape pruning. If it is a spindle-shaped tree, the upper competition branches or dense branches on the main trunk should be sparsely removed so that the trunk extends forward and the main branch forms the resultant branch axis. While the upper part is sparse, the lower part and the middle of the main trunk should be properly kept in order to suppress the occurrence of the strong phenomenon; the happy-shaped tree should be cleared of the result of the crowding of the branch axis, sparsely cutting part of the shoot to assist the tree, Restore the canopy as soon as possible.
Take toppings, shearing tips and other measures in the summer to cause it to occur twice and transform into branches; on the one hand, branches are pulled on the other hand in the fall, and the main branches are adjusted to extend the direction and angle of the branches to promote branching and prevent strong growth; On the one hand, we took dredging measures to eliminate the dense branches and leggy shoots, improve the lighting condition of the crown, and promote the differentiation of vegetative growth into flower buds.
Third, fertilization watering protection of peaches more closely planting cultivation methods, poor ventilation and light conditions, the tree's nutritional storage level is lower than the open ground, a direct impact on the output and quality of the following year, it is necessary to strengthen the fruit and fertilizer management.
1. Apply topdressing fruit to the organic compound fertilizer of fruit trees in a timely manner after removing the film, reduce or not apply nitrogen fertilizer, and increase the amount of phosphorus and potassium fertilizer. Top dressing should be based on the age of the tree; In addition, it can also be used for extra-root dressing. Once every 10 days or so, apply photosynthetic fertilizer or 0.3% urea plus 0.3% potassium dihydrogen phosphate. Spray fertilizer can be used alone or in combination with spraying. get on.
2. Base fertilizer applied organic fertilizer in autumn, 4000 kg of high-quality soil miscellaneous fertilizer per acre, to mature the soil, increase organic matter content, or 150 kg per mu Mushi bean cake, 1500 kg of manure, 100 kg of compound fertilizer and incorporate appropriate amount of Calcium phosphate, zinc fertilizer, boron fertilizer, etc. When using fertilization, use gutter grooves or strips. The location of fertilization should shift outward with the expansion of the crown. The depth of fertilization is generally about 40 cm. After the fertilization, pour water once.
3. Drainage and irrigation peach trees are afraid of flooding, so in the case of rainy season and rainy conditions should pay attention to drainage, especially the plains, clay land should pay attention to prevent accumulation of roots, and thus have adverse effects on the growth of the ground. Pour frozen water before freezing the soil. Watering should be done every time you top-dress.
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