1, scion collection. To select the mother tree with good growth traits and strong seeding ability in the seed orchard to collect the scion, and to conduct the scion in the middle and early March of the grafting year and before the sap begins to flow. Collect 2-3 rd branches on the trunk and grow strong one-year twigs. Scion roughness should be around 8mm. Scion collection should not be excessive for 1 time, and 15-20 shoots per plant can be controlled to protect the fine mother tree. The scion should be packaged after collection, moisturized or stored in the pit. Use the storage in a rural vegetable cellar, place 50 cm of ice at the bottom, put the scion into the cellar, seal the cellar mouth, and keep the cellar temperature below -5°C. 2, grafting time. The pine grafting time can be from mid-May to early June, and it is better that the fresh shoots have a fast growing period or a fast growing period. 3, grafting method. Choose young plantation forests over 2 years of age, with 4-6 years as appropriate. After the scion is out of the cellar, it is necessary to cut the stored scion, select the top bud full of robust, not sprouting, not air-dried, not dehydrated, and the length of the clipping is 9-10 cm, and the scion needles are completely preserved. When carrying the scion, it is best to carry the scion in a container, and take moisturizing measures to avoid the sun, air drying, affecting the survival rate of the scion. The same scion and rootstock thickness is good, the thickness of the scion should not be less than 2/3 of the rootstock thickness. Spikes are wedged and are 1.5-2 cm long. To be 1 knife, avoid repeating. After the scion is cut, the rootstock is processed, and the apical shoots of the rootstock below about 5 cm are removed first. From the base of the bud, the head bud was cut flat 2 mm upwards, and then cut down along the medullary part of the anvil, slightly longer than the length of the wedge. The wedged scion is inserted into the cut surface of the rootstock, so that the formation layer of the scion is combined with the formation layer of the rootstock. Use plastic strips for banding to expose full head buds and ensure that they are impermeable to water and windy. 4, attention. Do not cut the collateral buds around the rootstock when grafting. After grafting, it is affected by human and animal destruction, weather drought and other factors, so that the scion is damaged, withered and died. Because the main branch of the rootstock can no longer be grafted, the lateral branches with good growth and strong vitality can be used for grafting in the second year. The use of lateral branches as the rootstock grafted plants, depending on their growth potential, the use of fruit materials to cultivate or promote the development of fruit. 5. Management after grafting. Animals are prohibited from entering the forest after grafting. After 90 days of graft survival, the bandaged plastic strips were removed and the end buds of the side branches of the rootstock were cut off. After grafting, the growth of lateral branches of the rootstock was greater than that of the scions. To promote the growth of the main branch of the scions, pruning was performed once a year in the spring to cut away the lateral buds that affect the growth of the main branch of the scion. After solidification, promote pruning that is strong. Wetness Indicator Adult Diaper Tena Diapers,Adult Nappies,Adult Underpads,Adult Pull Up Diaper Shandong Kangshun Daily Products Co., Ltd , https://www.centurybenifit.com