How to use he Cao Dan in the live broadcast field?

Hechaodan is a selective herbicide, which is widely used in rice, soybean, peanut and other crops, so how to use it in direct seeding field?

1. Basic introduction of Hecaodan

Hechaodan is a selective herbicide of internal absorption and conduction, which is insoluble in water and easily soluble in organic solvents. It is mainly absorbed by weed roots and buds and used as a soil treatment agent. It is safe for rice and has excellent control effect on barnyardgrass.

Hechao Dan is suitable for many crops, such as rice, wheat, soybeans, peanuts, corn, vegetable fields and orchards, etc., for the control of barnyardgrass, cattle hair grass, abnormal sedge, gold, horse grass, cricket grass, sage grass, broken rice sedge, horse tooth grass, etc.

Second, how to use the direct broadcast field of Hecaodan?

Used in the period of 2-3 leaves of rice seedlings before or after sowing, the dosage of herbaceous dan is 50% EC 200-300 ml per mu, and the method is to spray 35 kg of water.

In addition, herbicide can also be used in farming, wheat and transplanting fields:

1. Farming

Before sowing or during the vertical needle period of rice, 50% EC 150-250ml per mu or 10% granule 960g-1500 g was applied with poisonous soil method. Keep the water layer at 2-3 cm for 5-7 days. The use of high temperature or plastic film mulching fields should be reduced.

2. Wheat field

After sowing, before emergence, spray the soil surface evenly with 300 milliliters of 50% EC per mu and 35 kg of water.

3. Transplanting field

3-7 days after rice transplanting, barnyardgrass is in the germination peak to 2-leaf stage, with 50% EC 200-250 ml per mu, 35 kg of water, or 20 kg of mixed fine soil fluvo-aquic soil. Or 10% granule 1-1.5 kg, mix fine fluvo-aquic soil or chemical fertilizer evenly. Keep the aquifer 3-5cm for 5-7 days. It dries naturally, don't drain it.

Matters needing attention in use

The main results are as follows: 1. The weeds should be before the 2-leaf stage, otherwise the efficacy will decrease.

3. It is not suitable to use herbicide in sandy or leaky paddy fields. Organic matter content

2. It is not suitable to use herbicide in sandy or leaking paddy fields. The amount of soil with high content of organic matter should be increased appropriately.

3. In the use of paddy fields, attention must be paid to maintaining the water quality.