Attention should be paid to these problems when fruit tree trunks are painted white
1. The whitening of fruit tree trunks is mainly to prevent fruit tree pests from overwintering and protect the fruit trees. Therefore, the whitening work must be completed before the cold air invades. The whitening is too late, and the pests have already moved up and down, which can not play a blocking role, so it is generally appropriate to carry out from November to December. 2. The whitening agent should be prepared in a certain proportion. The composition of whitening agent is generally composed of quicklime, table salt, sulfur (lime-sulfur mixture) and water. Lime and sulfur can prevent freezing, scorching, disease, and insecticide. Lime-sulfur mixture has a bactericidal effect. Table salt helps lime penetrate into the bark, retain water, and prevent lime cracking and peeling. Therefore, the preparation of whitening agent requires lime and salt. And sulfur or lime sulfur mixture these raw materials. Generally, 100 kg of water + 20-30 kg of quicklime, 2 to 3 kg of sulfur powder, and 1 to 2 kg of salt. The quicklime is firstly dissolved, then the sulfur powder and salt are added and mixed evenly, and then applied to the base of the trunk, or 100 In one kilogram of water, add 20 kilograms of quicklime, 1 kilogram of lime sulfur mixture and 1 kilogram of salt. 3. Before using the whitening agent, first scrape off the rough bark, moss and other parasites on the bark to block the old tree hole. Bark seams are good places for insects such as scale insects to live through the winter, and they should be scraped off, and then whitening agent should be applied to the scraped areas. In the process of painting, if harmful insects have been found on the branches, the insects must be killed before the whitening treatment. 6. The standard of whitening is generally such that the concentration of whitening should be applied to the trunk without flowing down, not sticking to lumps, not warping or falling off after drying. The whitening must be even, especially the bark cracks, holes, tree branches, etc., should be repeated to avoid brushing or leakage. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
Carnitine, or trans. carnitine, is an amino acid, a quaternary ammonium cationic complex, which can be biosynthesized from both lysine and methionine and is involved in the metabolism of fat into energy in the body. Carnitine has two stereoisomerism: L-Carnitine, which is biologically active, and D-carnitine, which is non-biologically active. L-carnitine (L-carnitine) is an amino acid widely distributed in the liver, especially in myocardium and skeletal muscle. Most of the carnitine required by the body comes from meat and dairy products in the diet. [1]
Carnitine is an amino acid widely distributed in the liver, especially in cardiac muscle and skeletal muscle. Most of the carnitine components required by the body come from meat and dairy products in the diet. In addition, the body itself can synthesize part of methionine as raw material, and the body needs Vitamin C, iron, B6 and niacin as auxiliary factors of various enzymes in the reaction when biosynthesizing carnitine. L-carnitine is widely present in the body, especially in mitochondria. The concentration of L-carnitine was highest in the adrenal gland, followed by the heart, bone, muscle, adipose tissue and liver. Free L-carnitine is excreted in the urine. Plant-based foods contain less l-carnitine (in some cases none), as well as less lysine and methionine, the two essential amino acids that make carnitine. The l-carnitine content in animal food is high, especially in liver. Foods rich in L-carnitine include yeast, milk, liver, meat and other animal foods. Humans and most animals can also meet their physiological needs through synthesis within their bodies. L-carnitine is not deficient under normal conditions.
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4. The whitening height should be determined by the size of the trees, usually 0.6 to 1.5 meters away from the ground. The brushing height is consistent and more beautiful.
5. Whitening agents cannot be used together with insecticides or fungicides. Although some insecticides, fungicides and whitening agents have the same goals, they are all for preventing and killing pests, but whitening agents It is an alkaline substance, and most of the insecticides and bactericidal properties are acidic. If the insecticide or bactericide penetrates into the whitening agent, it is easy to cause acid-base neutralization and fail to kill insects.