Rubber Materials,Rubber Auxiliaries,Antioxidant RD Concrete Admixture Textile Additives Co.,Ltd , http://www.rubber-auxiliary.com
Spraying large water to flush the medicinal agent due to spraying a certain pesticide to cause damage to plants and leaves, it is possible to spray large water 2 to 3 times repeatedly, and wash the medicine on the surface of the plant as much as possible. It is also possible to add 0.2% alkali surface or 0.5% lime water to the sprayed clean water. Since most of the pesticides are easily decomposed and reduced by the alkaline substances, the decomposition of the medicament can be accelerated. At the same time, spraying water increases the moisture in the crop cells, diluting the concentration of the liquid in the crop, and reducing the phytotoxicity of the crop.
The medicine for mitigating the phytotoxicity can effectively reduce the damage of the phytotoxicity by spraying the medicine which causes the phytotoxicity of the crop, and spraying the medicine which can alleviate the medicine. For example, omethoate, parathion and other pesticides cause phytotoxicity to crops, which can be mitigated by spraying 0.2% borax solution on the affected crops; rapeseed and peanut seedlings are inhibited by paclobutrazol, and growth is stagnant. The % 920 solution can quickly restore the normal growth of crops; crop phytotoxicity caused by copper sulphate and Bordeaux mixture can be sprayed with 0.5% lime water to alleviate phytotoxicity.
Drainage water reduces the drug damage caused by some herbicides, and proper drainage of water can reduce drug residues. For example, the rice dwarf disease caused by herbicide can immediately drain the exposed field in the initial stage, and then use the gap irrigation to reduce the residue of pesticide residues, thereby reducing the degree of phytotoxicity.
Rapid application of rapid-acting nitrogen fertilizer on the symptoms of foliar lesions, leaf edge scorch or plant yellowing, according to soil fertility and crop growth conditions, 5 to 12 kg of urea per 667 square meters (1 mu), Appropriate application of phosphorus and potassium fertilizer, supplement plant nutrition, combined with cultivating loose soil, promote root development, enhance plant resistance, and have obvious effects on seedlings and seedlings with less phytotoxicity.
When the phytotoxicity site is applied to the fruit tree by perfusion, injection, dressing, etc., if the application is excessive or too concentrated, the damaged branches should be quickly cut off to prevent the drug from continuing to conduct and penetrate, and timely irrigation should be prevented to prevent The phytotoxicity continues to expand.
Five methods can solve the phytotoxicity
Some farmers use pesticides to control pests and diseases, often due to improper use of technology, causing phytotoxicity of crops, resulting in plants with dead leaves, falling flowers, fruit growth, blocked growth and even plant death. If the phytotoxicity of the crop can be remedied in time, the damage caused by the phytotoxicity can be greatly reduced.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】