1. The broken root cannot be repaired
When applying base fertilizer in spring, the base fertilizer is mainly organic fertilizer, formula fertilizer and silicon-calcium-magnesium. These are basically solid fertilizers. The application of solid fertilizer requires digging holes or trenches, and digging holes or trenches will inevitably cause root breakage. Spring roots encourage the growth of branches and leaves on the tree. Once broken, the fruit tree has no extra energy to repair it in time.
2. The nutrition is stored in the root system
Spring roots sprout, at this time new leaves have not yet grown, and fruit trees will soon enter a period of maximum fertilizer efficiency, because fruit trees need to consume a lot of nutrients to grow roots, shoot branches, spread leaves, bloom, and set fruits. The fruit tree first uses the nutrients stored in the fruit tree. Most of the nutrients stored in the fruit tree with basal fertilizer last year are in the roots, and the cutting of the roots is equivalent to blocking the nutrient delivery.
3. Root cut is equal to mouth hurt
The draught and fat of fruit trees mainly rely on the hairy roots distributed in the middle layer 20 cm above the ground. If these roots are injured, they will not be able to absorb water and fertilizer normally, and the roots, branches and leaves of the tree will be affected.
4. Poor application of organic fertilizer
In spring, fruit trees need a lot of nutrients for rooting, branching, leafing, flowering, and fruit setting. If the nutrients are not fully supplied in this period, it will inevitably affect the later growth of the fruit tree, leading to serious consequences such as flower and fruit drop, yield decline, insufficient sugar color, and fruit quality decline. Therefore, it is recommended to vigorously use water-soluble fertilizers instead of organic fertilizers in spring.
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