Directional cultivation technology of plywood raw material forest Under the situation that the natural forest is decreasing day by day, only by planting the plantation forest according to the requirements of the future market for wood materiality, and according to the rational processing and utilization of the wood quality of the plantation forest, can the forest forest science cultivation and efficient use be realized, and the maximum Meet the growing demand for forest products in society. Directional cultivation is equivalent to “order agricultureâ€. According to the requirements of the production products of wood processing enterprises, intensive management technology is used to cultivate wood raw materials that meet the needs of enterprises. According to the material requirements of plywood materials, it is necessary to adopt the measures of targeted and intensive management to cultivate high-quality large-diameter plywood to achieve efficient processing and utilization of poplar. Directional cultivation techniques include tree species selection, seedling cultivation, suitable tree planting, meticulous cultivation and tending management, and pest control. The following are described separately: First, the plywood poplar has a good variety of poplar varieties. The varieties with fast growth, thick trunk, moderate wood hardness, good rotary cutting and gluing properties are suitable for plywood materials, such as Populus tomentosa, I-72 poplar, I-69 poplar. , Populus simonii, Xinjiang Yang, Ouyang Yang 107, T26, Zhonghe No. 1, Zhonglin 23 Yang and so on. Second, cultivation techniques Due to the different climatic zones, site environments and poplar species, the cultivation techniques of high-quality plywood timber forests are different. With the assistance of local forestry technical departments, we should grasp the various aspects of good seedlings, suitable trees, careful cultivation and tending management. To optimize and coordinate the three systems of “forest, environment and cultivation measuresâ€, we can maximize the productivity and economic benefits of forest stand. Zhou Bidong, a forestry station in Huaiyin City, Jiangsu Province, summarized the directional cultivation technology of Yiyang plywood in Huaiyin City. Here is a brief introduction. It is only for the development of directional culture of plywood raw material forest in Shandong. Zhou Bidong believes that the poplar varieties suitable for the development of plywood timber forests in Huaiyin are: I-72 Yang, I-69 Yang, I-214 Yang, Zhonglin 46 Yang, NL-80105, NL-80106, NL-80121, NL. -80205, XIMA Sima Yang, Luisa Yang, etc. Determine the reasonable cultivation density, the afforestation density should be controlled within 300 plants/ha, and the plant spacing should be 6×6 meters or 6×8 meters. The plywood material should be mainly composed of sliced ​​forest, and the density is better than that of the isolated wood and the number of rows of trees. Properly and moderately pruning can eliminate the dead knots of wood, reduce the knots, increase the fullness of the trunks, and grade the logs and finished materials, which can increase the number of unfinished materials to more than 8 meters. The season of poplar artificial pruning can be carried out in spring, summer and autumn, but in early spring, the pruning intensity is weak to moderate, that is, the high crown ratio is 2:3 to 1:2. Poplar branches have a strong healing ability, but the cortex is very easy to get rid of the xylem. It is easy to tear the bark when pruning, so be careful. Never leave piles when poplars are pruned, and the cuts should be smooth. The main control methods for these pests are: (1) Protect and utilize natural enemies; bookcases wood,furniture antique bookshelf solid wood bookcase,book shelf bookcase,bookcases display Guangdong Metagarden Trading Co.,Ltd , https://www.gdmenapparel.com
1, good seedlings
2, density control
3, configuration method
4, tending management
Third, pest control The main factors affecting the plywood materials are the larvae of the genus Cerambycida, G. sylvestris, and the dermatophyte, such as the scorpion, the scorpion, the scorpion, the snail, the beetle and the beetle. According to the degree of wood exposure, the insect eye can be generally divided into the following types: (1) The surface insect eye is mostly made up of small mites. (2) Small insect eyes, most of which are caused by cockroach worms; (3) Large wormholes, mostly made of deciduous celestial horns, affecting the use value; (4) powder worm eyes, on sheet metal and wood structure furniture This wormhole has only micropores on the surface of the wood, and the inside becomes powdery swarf, which is very harmful to wood.
(2) killing and trapping adults;
(3) spraying dichlorvos and other drugs in the eggs, larvae, and adult stages;
(4) Tianniu poisonous poisoning to kill Tianniu;
(5) Strengthen quarantine.