The method of maize phytotoxicity rescue

During the growth of corn, all kinds of pesticides should be sprayed to control diseases and insect pests, but if the medicament is not used properly, it is easy to cause drug damage, what are the rescue methods of corn drug damage?

Method 1: loosen the soil and water

For the drug damage caused by excessive dosage of soil treatment herbicides, the methods of mid-ploughing, continuous irrigation and repeated washing can be used to alleviate the drug damage, and a certain amount of lime powder can be applied to neutralize acid herbicides during watering, so as to wash and discharge the residual herbicides and reduce the content of residual herbicides in the soil. At the same time, strengthen the field management and enhance the resistance of maize.

Method 2: strengthen field management

The management of corn fields with drug damage should be strengthened, combined with watering, adding quick-acting fertilizers such as animal manure and urine, bicarbonate, nitrate and urea, so as to promote root development and regeneration, restore the physiological function of damaged corn and promote the healthy growth of crops. in order to reduce the harm of herbicides to crops. Strengthen ploughing and loosening the soil, break the soil consolidation, enhance the air permeability of the soil, increase the soil temperature, promote the activity of beneficial microorganisms, accelerate the decomposition of soil nutrients, enhance the absorption capacity of roots to nutrients and water, and restore the growth and development of plants as soon as possible. reduce the loss caused by drug damage. At the same time, 1% Mel 2% urea or 0.3% potassium dihydrogen phosphate solution can be sprayed on the leaves to promote the growth and development of crops and restore growth as soon as possible.

Method 3: spray plant growth regulators or antidotes for different agents

Plant growth regulators have a good stimulating effect on the growth and development of maize. At the same time, trace fertilizers such as zinc, iron, aluminum and foliar fertilizers can be used to promote crop growth and effectively reduce drug damage. The commonly used plant growth regulators are gibberellic acid, rhamnetin vinegar, compound nitrophenol sodium and so on.

The antidote of herbicide can reduce or counteract the toxicity of herbicide to crops. For example, tea is a selective seed dressing protective agent, which can be absorbed by seeds and inhibit the damage to crops in roots and leaves. This kind of medicine can protect corn from herbicides such as Acetochlor, butachlor, alachlor and so on.

Method 4: timely remediation of seed destruction

For serious drug damage, targeted remedial measures should be taken as soon as possible on the basis of finding out the causes of drug injury. if there is no remedy for serious drug damage, we should lose no time to replant and replant to make up for the loss.