Usage and matters needing attention of paraquat

Paraquat is a kind of rapid extinction herbicide, which has contact killing effect and certain internal absorption effect. It can be quickly absorbed by plant green tissue and make it die. It has no effect on non-green organizations. It is quickly combined with soil and passivated in soil, but has no effect on plant roots, perennial underground stems and persistent roots. Paraquat is extremely toxic to humans, and there is no specific medicine. The mortality rate of oral poisoning can reach more than 90%. At present, its use has been banned or strictly restricted by more than 20 countries.

Usage

1. Use of orchards, mulberry orchards, tea gardens, rubber plantations and forest belts: when weeds are in full bloom, use 20% water agent 100ml-200ml per mu, 25kg of water, spray weed stems and leaves evenly, when weeds grow above 30cm, the dosage should be doubled.

2. Wide-row crop fields such as corn, sugarcane and soybean can be used for pre-sowing treatment or post-sowing pre-seedling treatment, and protective directional spray can also be used to control inter-row weeds in the middle and later stages of crop growth. Pre-sowing or post-sowing pre-seedling treatment, use 20% water agent 75-200 ml per mu, spray 25 kg of water to control unearthed weeds. During the crop growing period, use 20% water agent 100-200 ml per mu and 25 kg of water for inter-row protective directional spray.

3. Practical experience shows that paraquat has no obvious effect on Rehmannia glutinosa.

Matters needing attention

1. Paraquat is a fungicidal herbicide, which should not pollute crops during the growing period of gardens and crops, so as to avoid drug damage.

2. Protective measures should be taken when dispensing and spraying, wear rubber gloves, masks and work clothes. If the liquid is splashed into the eyes or skin, rinse immediately.

3. When in use, do not drift the liquid onto fruit trees or other crops. Vegetable fields must be used when there are no vegetables.

4. Spray evenly and thoughtfully. 0.1% washing powder can be added to the solution to improve the adhesion of the solution. The efficacy can be basically guaranteed in case of rain 30 minutes after application.