Peach tree grafting and direct colonization

The grafting of peach root branches can reduce the anthemic link, and the direct colonization of the grafted seedlings is faster than that of the nursery. The results can be obtained in the 2nd year, and the high yield can be produced in the 3rd year. Its technical points.
One, anvil root collection. Peach seedlings nursery or Taoyuan winter and spring soil, collect peach seedlings or peach roots within 5 years of life, select the fibrous roots, no pests, no damage, 0.5-1.5 cm in diameter roots for the anvil. The roots of the anvil are bundled into small ones, placed in indoor wet sand pits for burying and standby. The humidity of the sand in the pits should be kept as loose as a hand.
Second, scion collection. Usually when grafted with the pick. High-yield, high-quality and strong-stress resistant varieties should be selected as the mother tree for cuttings, and the full-length one-year-old leaf buds should be cut at the periphery of the crown for scion. If in the winter, scion collection is combined with pruning, the scion should be bundled into different varieties and buried in a wet sand pit for storage. The humidity of the sand is the same as that of the storage anvil.
Third, grafting method. Grafting should be carried out in the spring when the peach trees are about to sprout. Grafting can be done indoors or outdoors in the lee place. Commonly used cutting and splicing methods, scion length 8-12 cm, the upper end retains 2-3 full leaf buds, anvil root length of about 15 cm, should retain fibrous roots; in the upper end of the anvil root (bulk) smooth and straight side of the interface , The two layers should be aligned at least one side, with a plastic film strap tied port.
Fourth, soil preparation. Digging holes should be made as soon as possible before planting seedlings. The width and depth of the holes should be 70, 70, and 60 centimeters respectively. They should be backfilled with finely divided soil and the base fertilizer should be applied in layers. The backfilled soil should be 20 centimeters higher than the ground. When the seedlings are planted and seedlings are planted, the soil in which the holes are planted is already submerged and there is more water, which is favorable for the survival and growth of the seedlings after planting.
Fifth, then planted seedlings. Before planting, the seedlings were covered with a plastic bag 15 cm in length and 5 cm in width, and the lower mouth was tied under the interface. When planting, dig a small hole in the planting acupuncture points, place the anvil root in the hole, and immerse the fine soil around the root, cover the soil to 3 cm below the interface, step on the soil, and cover the loose soil to make a hoe shape. After the planting, the cavernous surface was covered with a mulch film that was larger than the cavern, the middle shear hole exposed the scion, and the soil was compacted around the mulch and in the middle. In case of dry soil, it should be irrigated when planting.
Sixth, post-plant management. When the soil and soil are dry, the upper end of the bagging can be cut off. When the scion tip is full of bagging, the upper end of the bagging can be cut off to expose the new shoots, and after a few days the bagging is removed and a robust new shoot is selected for selection. Trunk, erase the rest, and release the bandage. After that, according to the growth of the seedlings, it should be dried and cultivated in due time.

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In 2008, BCHT successfully launched its product Varicella Vaccine, Live in China. In the following years, BCHT continuously committed to improving the product and led in 2010 removal of gelatin from adjuvant and extended the vaccine shelf-life up to 36 months which is the longest one in the world in 2011. And it has the following qualities.


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