At present, it is the best time to change the inferiority of chestnut trees. Many farmers' friends ask how they can ensure the survival of the scion. According to the author's many years of practical experience, the following points should be noted. Scion selection. After taking out the stored scion from cellars and porcelain vats, it is necessary to make a selection, break, shoot less, and throw away the dehydration. The good scion buds are bright and plump, and the shoots are fresh green with no bruising marks. Tool preparation. One is a plastic sheet, which must be a new clean, odor-free product with a three-finger wide strip. The second is a pruning shear and a saw. The third is a quick knife. If not, the scissors must be fast; Plastic leather. Observe the weather. Rainy weather and cold weather cannot be picked up. Should pay attention to watching the weather forecast, when grafting rain immersed in the joint of the anvil and spike, the survival rate will be very low. The highest survival rate is on sunny days with high temperatures. Specification operation. The grafted branches have a thickness of 1 cm and a maximum thickness of 1.5 cm. The specific method of inserting the tongue is to cut the rootstock into flat pieces and then cut the scion into a mare-shaped noodle with a length of 5 cm to 10 cm. The cut scion is contained in the mouth, and then the smooth side of the rootstock is selected, and the epidermis is gently shorn to expose the tender skin. The length and breadth of the noodles should be slightly larger than the scion surface. When inserting, it must be peeled open from the top to prevent the skin from peeling off when inserting. After processing. After the plastic strips are bundled, the bud tips have a good effect. The tied bracket is to prevent wind-folding scion, and the length of the bracket is more than 30 cm from the scion. Timely removal of the sprouts on the rootstock, pay attention to strengthen the management of fertilizer and water and pest control. Wenzhou Celecare Medical Instruments Co.,Ltd , https://www.wzcelecare.com