First, budding time budding early, budding development has not yet been substantial, the rootstock is in a vigorous growth stage, the body accumulated less nutrients, bud survival rate is low, and budding prone to frost damage after that year. If the buds are picked up too late, it is not easy to peel off, then it is difficult to heal afterwards and the survival rate is low. The autumn budding of fruit trees is generally appropriate in September, and different regions can be appropriately advanced or delayed according to the climate conditions. 2. The buds at the upper end of the buds and the buds at the lower end of the buds should not be used as buds. The buds in the middle section of the buds should be selected as buds. Bud size is appropriate, buds are too small, the contact surface with the rootstock is small, it is difficult to survive afterwards; buds are too large, easy to be injured when inserted into the rootstock interface, resulting in poor contact, low survival rate. When cutting the buds, care should be taken to protect the bud pad and carry a small amount of xylem. Under normal circumstances, the buds should be cut into shields or ring blocks, and the length of the shield-shaped buds should be 15 to 20 millimeters. The size of the buds of the ring-shaped buds can be controlled flexibly according to the thickness of the rootstock and budding shoots. Third, the grafting process must be handled when the rootstock grafted and then cut buds, and do with the cut with access; using "T" buds, can be cut in the rootstock 30 ~ 50 mm from the ground at the "T"-shaped It is better to reach the xylem and to peel off the bark. Then use a knife tip to peel off the bark of the rootstock. Quickly insert the sprouts of the shield with the petiole and tighten it with a plastic tape 10 mm wide. Only the buds and petioles are exposed. The width of the dressing is preferably 10 to 15 mm above and below the incision, and 100 mm after the bud is grafted. Fourth, strengthen management After about 15 days, plan to open the cover and check the survival situation. If the shoots are fresh greenish and the petioles touch and fall, it means that the seedlings have survived; in the autumn, the seedlings that are budded will be cut in the upper part of the buds 180 to 200 mm after the second year of spring to release the ligatures; 3 to 4 times pruning, cut the rootstock sprouts to prevent the loss of nutrients.
Energy Products Trading
Energy is to provide energy to the natural transformation of the material (mineral energy, nuclear physics energy, atmospheric circulation energy, geographical energy). Energy is the material basis of human activities. In a sense, the development of human society is inseparable from the appearance of high-quality energy and the use of advanced energy technologies. In today's world, energy development, energy and environment are issues of common concern to all people and the world as a whole, as well as an important issue in the social and economic development of our country.
Petroleum products can be divided into: petroleum fuels, petroleum solvents and chemical raw materials, lubricants, paraffin, petroleum bitumen, petroleum coke and other 6 categories. The oil industry has long been dominated by the production of fuel oil for gasoline, kerosene and industrial boilers. From the 1920s to the 1930s more advanced refinery technologies emerged, most notably invented by the French Bedeley (catalytic cracking process). The so-called catalytic cracking is the use of heat, pressure and catalyst to crack the heavy oil into a lighter oil, mainly gasoline.
Another refining method is the polymerization method, which is just the opposite of the cracking method: the synthesis of small molecules of macromolecules, the refinement of the lighter gas polymerization into gasoline and other liquids
Lubricant is used in various types of vehicles, machinery and equipment to reduce friction, protection of machinery and processing of liquid or semi-solid lubricants, the main lubrication, auxiliary cooling, rust, cleaning, sealing and bufferingrole(Roab)
Our company is mainly dedicated to the sales of oil and lubricants, has won the love of consumers.
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