Poplar seedlings market more rational and less blind

In recent years, the country's afforestation tasks have increased significantly, and the demand for tree seedlings has also increased dramatically. Due to its wide variety of suitable areas, rapid growth, excellent materials, wide use, and high profitability, Yangshuo has a very promising market, and its seedling market is also very popular. At the same time, there are also many problems: the blind introduction of poplar seedlings and the overheating of new seedlings. In this regard, the forest farmers are reminded to grasp the following key points when deciding to enter the seedling production field or purchase forest seedlings:
First, the right choice of suitable local poplar species. Any poplar species has its ecologically suitable climate and the best areas for development. There is no poplar tree suitable for growing from south to north. Therefore, before selecting poplar seedlings, they should consult the relevant seedling management departments and research institutes, and select the fine varieties that are suitable for the local site conditions and have been identified by relevant national departments.
II. Intensive cultivation of poplar industrial timber forests first requires the seedlings to be cloned. Afforestation with mixed seedlings of clones will easily lead to tree differentiation, increase the difficulty of tending management, and reduce the yield and quality of forest stands. Because the morphological characteristics of the species are sometimes very close to each other, it is difficult to distinguish them from the outside, and often only professionals can distinguish between them. Therefore, when purchasing seedlings, they should be purchased from scientific research institutes or regular production companies. Nursery households can use the cuttings provided by the scion nursery to ensure the clone purity of the seedlings.
Third, nursery stocks should strictly implement the inspection and quarantine system. Sensitive seedlings in nursery fields should be strictly controlled in the market to reduce the cost of prevention and control after afforestation. Last year, Jiangsu TV reported on the “Millions of Poplar Deaths” and lessons learned in many areas last year that led to extensive deaths due to the introduction of exotic diseases. Fourth, master basic knowledge, respect science and objective laws. The new breed does not equal good breeds, and some merchandising companies are screaming at the speculation and constantly launching uncertified so-called fine breeds. Originally planted with old varieties for many years, branded with new names, it became a new variety, and with the lack of conscience and scientific morality of individual researchers, they joined hands with unscrupulous traders and looked for money, speculation, and help. It is more puzzling and deceptive 5. Rationally treat the propaganda of the fast-growing poplar species market. In the seventh issue of China Forestry in 2003, Xinjiang Tianye Biotechnology Co., Ltd. spared no effort to publicize the outstanding market prospects and unparalleled economic benefits of “Tian Yan Yang” who has not been granted new breed rights. question. As similar to a one-year free of charge for the species pricing recovery of sales and other advertising, we must conscientiously research, must not blindly gullible. 6. Learn more about Miao Merchants. Does the seedling merchant have “Forest Seed Production Permit” and “Forest Seed Business Permit”; whether there is a project for the production of the fine variety or the content for the operation of the variety and the written certificate of the breeder-selector’s entrusted production and operation; how is the technical force? Whether there is after-sale technical service capability.
7. Learn more about relevant forestry policies, regulations and professional information.
Eighth, we must persist in handling legal procedures. Sign an agreement or legal contract, and maintain the bill voucher. When a dispute arises, the dispute can be lodged with the relevant department and the law can be used to protect their legitimate rights and interests.

Lower limb Locking Plate

Lower Limb Locking plate is a kind of implant fracture orthopedics with locking thread holes.

The lower limb locking plate allows the bone to bind to the plate more firmly, so that the reduced limb is more stable. Locking plates were first used in spine and maxillofacial surgery 20 years ago to stabilize fractures while reducing extensive dissection and damage to soft tissues. When the threaded hole in the locking plate is screwed in by a screw with a threaded head, the plate becomes an Angle fixing device. It can have both locking and non-locking holes for different screws to be screwed in. Any plate that can be screwed into an Angle fixed (stable) screw or bolt is essentially a locking plate.

Locking plate system does not rely on bone friction to achieve connection, but completely depends on the interlocking structure of the plate itself. A certain gap between the plate and the bone surface can be left, which can eliminate the adverse effect of heavy pressure contact between the plate and bone, and greatly improve the blood supply and the growth and recovery of the periosteum. The main biomechanical difference from conventional plates is that the latter relies on friction at the bone-plate interface to accomplish plate compression on bone. Stability is maintained by an angularly stable interface between the screw and the plate. Because the locking internal fixator has a stable integrity, the pull-out force of the locking screw is much higher than that of the ordinary screw. It is difficult for a single screw to be pulled out or broken unless all the surrounding screws are pulled out or broken.

Locking Plate,Femur Plate,fibula plate,tibia plate

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