There are three main types of corn herbicides: pesticide residues, chemical herbicides and herbicides.
In the case of corn herbicides, the first thing is to prevent or reduce the occurrence of phytotoxicity by adding herbicide safeners when spraying herbicides. Second, once a phytotoxicity occurs, the plant growth regulators, anti-drugs, and foliar fertilizers can be sprayed to ease the phytotoxicity at the initial stage of the symptoms of the phytotoxicity so that the damaged plants can resume growth as soon as possible.
Specific methods for preventing and relieving herbicides in corn fields:
(1) Prevention of herbicide damage in corn fields: The use of a large amount of clomazone and clomazone should not be used to grow corn to avoid residual phytotoxicity; the use of nicotine torazine in corn exceeds 6 leaf stages or Excessive drug usage per unit area can easily produce phytotoxicity. Therefore, when spraying nicotinamide to Tianjin, it is necessary to strictly control the period of drug use and the amount of drug used, and to use anti-drug agents (new or peaceful) to avoid the occurrence of phytotoxicity.
(2) If residual phytotoxicity occurs before or after the herbicide is harmed by the herbicide of the year, use Bihui Jiahavit or directly spray freshman or rest: 1 x 3 grams per mu + Harvet or Harvett 20g ;2 Use 33 grams of freshmen or 27 grams of tranquilizers per acre to spray at the initial stage of the symptoms of drug damage to ease the injury, so that the damaged plants can resume growth as soon as possible.
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