How to prevent grafted varieties of fruit trees from rooting?
How to prevent grafted varieties of fruit trees from rooting?
In recent years, I often come across a tall dwarf tree in the orchard, and I can't control it. I thought I could buy a fake seedling. When I looked under the tree, I couldn't see the marriage interface, a pick of soil, the marriage interface was in the soil, and the varieties above the interface had taken root. Varieties grow a root tree potential will return to prosperity, and varieties take root, as long as the conditions are suitable, often the root is very thick (figure 1) [Yoshama Huayao], we must pay special attention.
Fig. 1 the marriage interface is buried in the soil, and the varieties have 3 thick and strong roots.
After the dwarf rootstock varieties took root, the dwarfing effect was lost, and the stress resistance of the varieties became worse, and the quality of the fruit became worse.
1 measures to prevent varieties from rooting
1.1 planting depth is the same
Before planting, ditch backfill, must pour heavy water to settle the soil, and then ridge, level the border surface, when planting, pile at both ends of the tree line, draw a mark about 5 cm from the ground, let the marriage interface level with the rope when planting, and water after planting.
1.2 the growing season ensures that the marriage interface is exposed to the ground.
After pouring frozen water, young trees are required to seal the tree plate to protect the root neck. After the beginning of spring, the soil must be removed to reveal the interface of marriage. This measure is very critical, when planting, often can make the marriage interface exposed to the ground, after burying the soil, often ignore this measure, no soil or soil is not in place, as long as the variety is buried in the soil, before long, the variety will definitely take root.
Treatment of 2 varieties after rooting
Every spring, after scraping the soil, check in time and find that if the marriage interface is not exposed to the ground, you must pick the soil in time, cut off all the roots above the marriage interface, and disinfect the fracture with 50 times carbendazim + 50 times tebuconazole.
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