The composition of Daoxi herbicide

The active components of Daoxi herbicide are 10 g / L pentafluorosulfonamide and 50 g / L cyanofenoxate. It is a kind of dispersible oil suspending agent, which can efficiently remove weeds in rice fields such as barnyardgrass and gold, and is harmless to rice.

Points for attention in the use of rice herbicides:

1. Drug dosage

Be sure to shake well before dispensing. The drug dosage is determined according to the weed density and leaf age, and it is necessary to increase the drug dosage with high density and grass age. in general, for each additional leaf, it will be increased by 50 ml / mu on the basis of the above recommended dosage.

two。 Water layer management

Use the phreatic layer (at least the soil is moist), but make sure that the weed stems and leaves come out of the water; return water within 1 day after application and keep the water layer 3-5 cm for 5-7 days. During the application and within 1-2 days after the application, the water layer could not immerse the rice seedling heart. Special attention should be paid to its use in rice seedling field.

3. Weather influence

The efficacy may be reduced under harsh conditions such as high temperature and drought, so please avoid high temperature, especially at noon; in field drought, you should replenish water properly before applying pesticide; if you encounter low temperature (< 15 ℃) during the application period, the leaves may appear slight yellowing for a short time, which will disappear within 2 weeks and have no effect on the yield.

In the water direct seeding rice field with better water management, barnyardgrass is dominant and gold is less. The application time of barnyardgrass should be taken as the application time, and the dosage should be based on the leaf age of barnyardgrass.

In the paddy field with poor water management or dry direct seeding rice field, the occurrence amount of Echinochloa chinensis and barnyardgrass is relatively large, and the occurrence period is slightly later than that of barnyardgrass, or occurs at the same time as barnyardgrass. However, the dosage should be comprehensively referred to the leaf age of barnyardgrass and barnyardgrass.

4. Application time

After rice sowing and emergence, when the weeds grow to the 2-3 leaf stage, the drug is used.

At present, there are many companies selling this product on the market, so we should pay attention to identify the authenticity and avoid buying fake goods.