The first is to improve the soil. In the orchard with slight acidification, the available soil improver is evenly sprinkled under the canopy with 100-200kg per acre. This not only improves the soil, but also reduces black spots, chapped, and other physiological diseases of bagging apples; the orchard with serious acidification can be Use lime to improve the soil. Lime must be applied evenly to the soil. Usually, the lime requirement of 20-40 cm soil layer is spread on the soil surface, and then it is evenly poured, then deep-dip, and the lime of 2-20 cm topsoil is needed. The amount of applicator, and then can be uniform, pay attention to lime can not be used continuously, and the use of quick lime orchards must always scratch.
The second is to promote orchard grass, grass cover technology. Orchard grasses can improve the microclimate conditions of orchards, help control the growth and fruiting of fruit trees, control the harmful organisms, and increase the content of organic matter and beneficial microorganisms in the orchard soil. Similarly, the orchard grass cover can also prevent water loss and soil erosion. Insulation, stable water supply, increased living soil layer, increased soil organic matter and beneficial microorganisms, both improved nutrient content and improved soil physical and chemical properties, not only promote the growth and development of fruit trees, but also have a greater impact on the improvement of fruit quality, so that the fruit The prices and benefits have improved significantly.
The third is to increase the organic fertilizer, organic and inorganic use. Organic manure is used as a base fertilizer with adequate manure, manure, manure, and manure, such as farmyard manure or commercial organic fertilizer. If the mature orchards are farmyard fertilizers, the amount of fertilizer shall be determined according to the “kg pound fruit fertilizerâ€. If the organic fertilizer is applied, it will generally be 500-800 kg per mu; the young orchards will be applied with high-quality farmyard fertilizer of about 1000 kg per mu or commodity Organic fertilizer 200 kg. The use of nitrogen, low-phosphorus, and high-potassium potassium sulfate fertilizers for chemical fertilizers, combined with the application of silicon-calcium fertilizers, biological bacterial fertilizers, and trace element fertilizers, can increase fertilizer utilization and economic efficiency.
Fourth, spray foliar fertilizer. Spraying boron fertilizer before flowering; Spraying calcium once every 2 weeks after flowering period, until bagging; continue to spray calcium during the color change period. Foliar supplementation can be based on the nature of pesticides and fertilizers, combined with spray spraying, spraying within 20 days before fruit harvest.
Fifth, adjust the fertilization period. The use of fertilizers and deep-fertilizers in the fall will give full play to the role of fertilizers in promoting flowering and fruit-setting and meet the large-scale nutritional demands of fruit trees in early spring. The high-yield orchards can supplement fertilizers after fruit set and before the color-changing period.
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