In recent years, corn stalks returning as a continuous production measure has gradually gained popularity and produced very good economic benefits. However, due to some farmers' negative effects on these problems, the specific performance of wheat stalks after returning some straw to the fields The emergence of low seedling rate, yellow seedlings, weak seedlings, and even dead seedlings, not only does not increase production, counterattack production, analysis of the reasons are mainly in the following areas.
1. The ratio of carbon to nitrogen ratio straw itself is 65-85:1, and the ratio of carbon to nitrogen for suitable microbial activity is 25:1. Nitrogen is insufficient in the soil after returning straw, making microorganisms compete with crops for nitrogen. Slow decomposition of the straw syndrome, wheat seedlings due to lack of nitrogen and yellow, weak seedlings, poor growth.
Second, straw smash does not meet the requirements of some land crushed after the straw is too long, its length is greater than 10 cm, is not conducive to ploughing, affecting sowing.
III. Unreasonable proportion of soil and pore size After the straw is returned to the soil, the soil becomes too loose and the macropores are too much. As a result, the wind is running, and the soil and seeds cannot be in close contact with each other, affecting the seed germination and growth, making the wheat not firmly rooted or even hanging. root. So, how can we remedy the above defects and ensure stable production and high output?
4. After applying nitrogen, phosphorus, and potassium fertilizers to the fields, increasing the available nitrogen fertilizer can reduce the ratio of carbon to nitrogen in the soil, thereby facilitating the activity of microorganisms, meeting the needs of seedling growth for nitrogen, and speeding up the decomposition of straw. Provides various nutrients for mid and late wheat production. The critical period of nutrition for phosphorus in wheat is in the three-leaf stage, so phosphorus can meet the needs of seedlings for phosphorus, and at the same time lay a foundation for the development of fruit to increase grain weight. Potassium is beneficial to the synthesis and transportation of sugar and promotes crop metabolism. At present, high-yield soils generally suffer from the phenomenon of "phosphorus deficiency, low nitrogen, and potassium deficiency." Applying nitrogen, phosphorus and potassium fertilizers in proportions can meet the needs of wheat growth and increase crop yields. The dosage is 2 kg of ammonium per 667m, 25 kg of superphosphate and 10 kg of potassium sulfate.
5. The length of finely pulverized and deep-turned straw should be less than 10 cm. If a common type of wheat leg sowing machine is used, the soil will be easily sowed when sowing, which affects the quality of sowing, and the rotary (rotary disc type) seeder shall be used. To improve the quality of sowing.
Sixth, timely suppression of watering wheat sowing, drying one day, with stone scorpion repression, so that the soil is dense, eliminate large holes, the size of a reasonable ratio of pores, seeds and soil in close contact, conducive to germinating and rooting, can avoid the phenomenon of wheat hanging root.
VII. Eradication of pathogens Straw stalks cannot be returned directly to the field. Otherwise, summer corn is prone to disease. Such stalks should be destroyed or used after high-temperature heap rot.
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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