Winter Li Yuan Management Technology

During pruning in winter, it is necessary to strengthen the thinning and shortening of the drooping branches after the results, the long branching branches and the severe branches of the gumball disease, and to keep the short branches and short fruit branches of the bouquets in the lower part of the canopy by slow release. The results of the branch rejuvenation update.

(1) Plastic pruning: Li Shuyi adopts multi-principal branches natural happy shaping, with a height of 40 cm, a main branch of 4 or so, and a main branch opening angle of 60 to 75 degrees, leaving only the three main branches seeking uniform distribution and height uniformity. For those with 4 or more major branches, the main branch shall be scattered up and down, and the long axis type branch groups and large bouquet-like short fruit branch groups shall be cultured directly on the main branch. Because Li mainly produces short-fruited and short-medium fruiting branches, it must be cultivated. When pruning, take the method of combination of sparse, loose, thin and controlled. The tip of the plum has a strong advantage, and the front of the shoot can sprout a plurality of strong branches, leading to dense shoots and affecting the illumination in the crown. Therefore, the upper and outer branches of the tree crown should be strengthened to remove, especially the extension branch of the main branch, must be cut off. Its branches, leaving a light stretch slow extension. For vegetative shoots that are more prosperous each year in the canopy, they can be maintained as a result of the branches, and those that cannot be cultivated into fruiting groups should be promptly removed. The original fixed backbone does not move. For some overgrowth temporary result branches (especially the upper part of the crown, excessive branches) should be properly removed to improve the lighting conditions, and internal ventilation and poor light transmission should be thoroughly cut off. For a biennial branch grown obliquely or horizontally, if the apical growth is weak, it can be lightly sheared and long-distanced; conversely, it can be about 1/3 of a short-cut whole branch, which is conducive to bud sprouting at the base of the shoot. For short-fruited and short-fruiting branch-like bouquets with a continuous result of 3 to 5 years, when they have gradually declined and become senescent, they should be removed from the base, and the surrounding shoots should be made full of fresh shoots, which can maintain strong results. As for the perennial branch, its ability to gradually decline results, it should be retracted to the strong buds, making its result compact and restore its growth potential. The result is generally not trimmed. If there are too many short-fruited and short-fruiting branches growing on one of the resulting base twigs, they can be left unfavorably. Sparse and weak branches and drooping branches should be removed, and newer branches should be cultivated in time. For Li varieties (such as Huang Xin, Tao Li, etc.) with strong resistance to low temperature and freezing damage during flowering, such as short-fruited, short-fruited, short-fruited, short-fruited, and short-fruited branches, it is better to strengthen dense-like bouquets. Long-year fruiting branches and strong fruiting berry varieties with high fruit set rate can use high-quality, medium-to-medium-short fruit stalks as much as possible, which can greatly increase fruit size and quality.

(2) Scrape the whole park and the branches and branches, especially the cleaning and scraping treatment of mulberry whiteworms and turbid fluids.

Piston Skirt

it is full range of piston skirt for the following type :

Piston Skirt,Engine Piston Skirt,Diesel Engine Piston Skirt

ZhouShan HeCheng Machinery Co., LTD. , https://www.hcmarineparts.com