Organic cherries have different requirements for organic fertilizers at different ages and different periods. For younger trees below 3 years old, the trees are in the crown expansion period, and the vegetative growth is strong. During this period, the nitrogen needs are large, and nitrogen fertilizer should be used as the main factor. Promote the formation of the canopy. 3-6 years old and early fruit saplings, the tree body is transferred from vegetative growth to reproductive growth, promoting flower bud differentiation. In fertilization, attention should be paid to nitrogen control, phosphorus addition and potassium supplementation. When the tree is more than 7 years old, the tree consumes more nutrients, and the amount of fertilizer is increased every year. Nitrogen, phosphorus and potassium are needed, but potassium fertilizer should be added during the fruit growth stage to increase the yield and quality of the fruit.
Autumn Shiji Fertilizer: It is generally carried out from September to November. It is better to use early application and exert fertilizer effect as early as possible, which is conducive to the accumulation of nutrients stored in the tree. Spraying plant electronic fertilizer can lead to fertilizers that are super effective. Using the high-energy electrons and plant electron polarity sensing principle emitted by the photosynthesis of plants themselves, the cell division, molecular synthesis and nutrient matching digestion levels are improved, the frequency of metabolism is accelerated, and the plant nutrition control system is activated to produce more than the fertilizer effect. . Cherry has more requirements for nutritional conditions during flowering and fruit setting.
Top-loading topdressing: For the fruit-bearing period, the tree can be sprayed with intelligent control of foliar fertilizer to intelligently promote flowering and leaf spreading, increase fruit set rate and accelerate fruit growth. About 10 days after the organic cherry picking fruit, a large number of differentiated flower buds began to be formed, and it was the new shoot that was close to the growth period. The entire flower bud differentiation period is about 40-45 days.
Fertilization should be applied after harvesting: the roots of organic cherries are developed, the distribution layer in the soil is shallow, and the horizontal extension is wide. It is concentrated in the soil layer of 5-35 cm below the surface, with the most soil layer of 20-25 cm. . Generally, the application method of the fruit tree base fertilizer to dig a large hole, open-shot or arc-shaped deep groove outside the tree tray will cause a large number of wounds. For the result tree, the bio-organic fertilizer is applied to the tree tray in the early winter, and the tree-planting tray is 5-7 cm deep. Immediately after leveling, the water is watered, and after watering, the grass is covered or covered with grass and covered. Topdressing, it is best to spread in the tree tray, and immediately gently stroke, to make the soil mix, and then water. When the tree is covered with grass, it can be applied directly to the grass, washed down with water, or opened at the corner of the grass, sprinkled on the soil surface, watered and washed, and then covered with grass.
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