In apple production, many fruit growers understand that to cultivate a strong tree vigor, it is necessary to fertilize the roots of the tree. As the saying goes: Trees rely on roots, and fertile soil can grow roots. The growth environment of the root system in the soil is the basis for cultivating a strong tree vigor. The root system can only grow healthily when it grows in fertile soil. So, what issues should be paid attention to when applying base fertilizer in autumn?

The sooner the base fertilizer is applied after fruit picking, the better. During ditching and fertilization, some of the roots are cut off, and the cut roots will give out new roots. The performance on the tree body is that the leaf function is enhanced, and the reserves of nutrients are increased. Two years of budding, long branches, long leaves, flowering and fruiting provide convenient conditions.

Many fruit farmers did not realize the importance of fertilization in autumn. In fact, applying basal fertilizer in early autumn can actually save money for fruit farmers from the perspective of the characteristics of fertilizer requirements throughout the growth cycle of fruit trees, and the utilization rate of fertilizer can reach 80% to 90%. The base fertilizer utilization rate applied in spring is only 30%-40%.

The application of base fertilizer in autumn will control the growth of fruit trees throughout the year. The application of base fertilizer in autumn is actually a very important part of the annual management and comprehensive management of fruit trees. It is also an important opportunity for real underground management. The general fertilization standard is that organic fertilizer accounts for 70% of the total fertilization, with appropriate amounts of nitrogen, phosphorus, and potassium, plus appropriate amounts of medium and trace element fertilizers, and the total fertilization accounts for 70% of the annual fertilization. Increase the amount of organic and biological bacterial fertilizers and reduce the amount of chemical fertilizers, so that fertilization can change the problem of soil compaction.

The method of applying basal fertilizer for fruit trees in autumn follows the technical requirements of "early, full, full, appropriate, even and integrated". 1. Apply as soon as possible and apply sufficient base fertilizer; 2. The types of fertilizers used for fertilization should be all; 3. The amount of fertilizer should be determined according to the target output of the fruit tree; 4. The depth of ditching should be 20-40 cm during fertilization, and the crown Vertically below the periphery; 5. Sprinkle fertilizer in the ditch and mix well with soil to prevent excessive concentration of chemical fertilizers and burn roots; 6. Before applying fertilizer, it depends on the soil moisture, which means that the humidity of the soil determines the fertilization.

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