How to solve the phytotoxicity of corn? The remedial measures that can be taken for corn phytotoxicity are mainly to improve the growth conditions of crops, promote crop growth and enhance their resistance to stress. Let's take a look at the corn remedy solution.
According to the growth of the crop, supplement some quick-acting nitrogen, phosphorus, potassium fertilizer or other micro-fertilizer. Foliar fertilization is better, and fertilizer effect is faster. It is also possible to spray some plant growth regulators that encourage and encourage growth , especially for root growth. But it must be applied according to the needs of the crop, otherwise it will be counterproductive. If there is water on the ground, it should be eliminated early; if pests and diseases occur, it should be prevented as soon as possible. In short, as long as measures are conducive to crop growth and development, it is beneficial to alleviate phytotoxicity and reduce losses.
1. The phytotoxicity caused by the excessive use of the soil-treated herbicide ,
The method can be used to reduce the phytotoxicity by means of cultivating, continuous irrigation and soaking drainage, and repeated rinsing, and a certain amount of lime powder can be applied to neutralize the acidic herbicide during watering, thereby washing and discharging the residual agent and reducing the soil. The residual herbicide content. At the same time, strengthen field management and enhance corn resistance.
2. Strengthen field management and promote early growth of seedlings.
It is necessary to strengthen the management of corn fields where phytotoxicity occurs, combined with watering, increase the application of decomposing quick-acting fertilizers such as animal waste, hydrogen carbonate money, nitric acid money, urea, etc., promote root development and regeneration, restore the physiological functions of the damaged corn, and promote The crops grow healthily to reduce the harm of herbicides to crops.
Strengthen cultivating loose soil, break soil compaction, enhance soil permeability, increase ground temperature, promote beneficial microbial activities, accelerate the decomposition of soil nutrients, enhance the absorption capacity of roots for nutrients and water, and restore plant growth and development as soon as possible, reducing phytotoxicity Loss. At the same time, foliar spray 1% - 2% urea, or 0.3% potassium dihydrogen phosphate solution to promote crop growth and development, restore growth as soon as possible.
3. Spray plant growth regulators or antidote to different agents.
Plant growth regulators have a good stimulating effect on corn growth and development. At the same time, zinc, iron, aluminum and other micro-fertilizers and foliar fertilizers can be used to promote crop growth and effectively reduce phytotoxicity. Commonly used plant growth regulators are gibberellic acid, eucalyptus vinegar, sodium nitrophenolate.
Herbicide antidote can reduce or eliminate the toxicity of herbicides to crops. For example, tea is a selective seed dressing protectant that can be absorbed by seeds and inhibits damage to crops in roots and leaves. These drugs can protect corn from acetochlor, butachlor, and isoamylamine. The damage of the herbicide.
4. Remediate the destruction in time.
For heavier phytotoxics, targeted remedies should be taken as soon as possible on the basis of identifying the causes of phytotoxicity. If there is no remedy for serious phytotoxicity, it is necessary to hurry to replant, replant and compensate for losses.
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