Remedial methods of Drug damage to Cotton

Cotton is a crop with a large number of pesticide applications. in the process of application in cotton field, cotton drug damage is often caused by wrong varieties of pesticides, excessive concentration of pesticides, improper use methods and other reasons, resulting in the decline of cotton varieties, reduction of yield and even no harvest. So how to solve the drug damage to cotton? Let's get to know it with the editor.

1. Spray neutralization

If it is acid pesticide harm, then you can sprinkle some quicklime or plant ash, while the more harmful can be sprayed with 1% bleach solution for foliar spraying. On the other hand, if it is caused by alkaline pesticides, acid fertilizers such as ammonium sulfate can be added to neutralize. If there is no way to distinguish the acid and base of pesticides, then foliar spraying 0.1 ℅-0.3 ℅ potassium dihydrogen phosphate solution or 0.3 ℅ urea solution plus 0.2 ℅ potassium dihydrogen phosphate solution can reduce the economic loss caused by drug damage.

2. Spraying with water

If it is because of the drug damage caused by foliar and plant spraying, if it is found in time, you can quickly use a large amount of water to spray the damaged leaf surface, this is because many chemicals are not resistant to water erosion, and can be sprayed 2-3 times in time. It can scour the residual agents on the plant surface and reduce the drug damage. When scouring, the air pressure of the sprayer should be sufficient, and the amount of water sprayed should be large. At the same time, it should be combined with ploughing and loosening the soil to promote the development of root system so as to enhance the recovery ability of crops.

3. Irrigation

As for the drug damage caused by some herbicides or root irrigation, the soil can be washed with water immediately and the residual agents can be leached into the deep soil. For example, because of the drug damage caused by herbicide Pocaojing, if it is found in time, the field water should be discharged immediately, and then intermittent irrigation and other measures can be used to alleviate or reduce the drug damage.

4. Fertilization remediation

For the drug damage caused by leaf spots, leaf margin scorching, plant yellowing and other symptoms, plant recovery can be promoted by foliar spraying certain plant growth regulators or directly spraying foliar fertilizer. For those who inhibit or interfere with plant growth herbicides, gibberellin and other hormone plant growth regulators can be sprayed to alleviate the drug damage. After the drug damage to crops, comprehensive remedial measures can be taken according to the types of pesticides and the degree of damage to crops to reduce the harm as much as possible.

The above is the introduction of cotton drug damage remedies, hope to help you, want to know more related knowledge, please pay attention to us.