First, when the promotion of flower bud differentiation to timely fertilizer
After harvesting the fruit is the most nutritious period in the life of cherry. After harvesting, it will be supplemented with nutrients. The tree vigor is easy to form flower buds. In addition to nitrogen, phosphorus, potassium, and trace elements such as magnesium, boron, zinc, silicon and iron are extremely effective. important. To master the soil nutrient status in Shaanxi Province, the main application of nitrogen fertilizers and phosphate fertilizers over the years, neglecting the use of potash fertilizers and the application of trace elements, should control nitrogen, reduce phosphorus and potassium, use organic fertilizers and biofertilizers, and combine organic and inorganic organisms. fat. Foliar spray fertilizer, fruit friend amino acid or Shuofeng 481 foliar fertilizer can be used, and 600 times evenly sprayed foliar leaf and dorsal branches, plus 0.2% borax, spraying the whole tree, supplement nutrition to promote flower bud formation . Foliar fertilizer is used once every 10 days, and it can be used favorably and harmlessly during the growing season. In the growing season, nitrogen fertilizer should not be applied in a large amount, and nitrogen can cause burgeoning growth and it is difficult to form flower buds.
Second, make summer trim
The physiological differentiation of flower buds of cherry is carried out after harvesting, and the morphological differentiation is completed within about 2 months after harvest. In addition to balanced fertilization, the adjustment of tree vigor, and balanced pruning are also important for flowering. Only reproductive growth and nutrient growth are balanced, and nutrition complements each other, which is important for promoting flower growth. Only if reproductive growth is completed, flower buds can be formed. From the perspective of summer trimming, the main technical measures commonly used in cherry trimming can be taken.
1. Dredged branches and over-tight branches, and used internal air, light, and light, and cultivated twigs. For the resulting temporary branches, thin and weak branches, drooping branches should also be removed, and the outgoing branches that grow should also be left in the direction of 2 to 3 branches. The rest is neglected. In short, the open air, air and light are opened, which are beneficial to photosynthesis, accumulate nutrition, and form flower buds.
2. Retraction, topping and flexible application: Results have been achieved through light retraction, promote the germination of the lower part, so that the result of the next year does not shift. About 10 centimeters of the internal picks left in the above-mentioned branches were left to remain, and the branches continued to be picked up and continued to be picked up to form flower buds and small fruit groups. Peripheral branches can stay long, to 25 ~ 30 cm topping, there is a large space to expand the scope of growth results.
For the control of growth of virgin cherry trees, PBO can be used as a control agent for promoting fruit spray from June to July.
Third, timely prevention and control of pests and diseases
In Shaanxi, the current diseases on cherries are plastic gum disease, perforated brown spot, and anthrax. The pests are leaf miners, red neck beetles, and mulberries. During the occurrence period, an integrated pest control method was adopted. You can use 25% of Guinness 6000 ~ 7500 times + 8000 times of Anox larvae, or Anminole, Guolong, precious, Nanbao, Anmian and Avi chlorpyrifos. Sterilizing drugs can also be used Jianlitong, Putkin, Nano xin and so on. Follow the instructions to control usage. Regardless of the type of pesticide used, the first use of soft water to pass 4,000 times, will be formulated into a neutral water and then proportionally. Dispensing at the same time plus fruit friends amino acids or fengfeng 481 6,000 fertilizer fat.
From June to July, it is also necessary to pay attention to irrigation and drainage, cherry ecological requirements are afraid of drought and fear, and spring irrigation summer row is the key technology for large cherry water management.
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