When is the best time to apply mepiquat chloride to corn?

Correct use of mepiquat chloride can not only regulate the growth rate of corn, but also strengthen the plants and increase yield. So when should mepiquat chloride be applied to corn?

1. When should mepiquat chloride be applied to corn?

Generally at the small funnel stage of corn, that is, when it has 8-10 leaves and is about one meter tall, spraying mepiquat chloride gives a relatively good chemical control effect and helps increase yield.

2. Precautions for spraying mepiquat chloride on corn

1. Strictly use the concentration according to the instructions. For plots where excessive vegetative growth is possible, spray the high concentration value; for plots with normal growth, spray the low concentration value; plots that are drought-stressed or where growth is weak are not suitable for spraying. Do not arbitrarily increase or decrease the dosage.

2. Master the spraying time and method well. It can be done at the 3-10 leaf stage of corn, but the 6-9 leaf stage is best. Spray before 10 a.m. or after 4 p.m. when there is no wind and no rain. Strive for even spraying; do not spray repeatedly, and do not miss any areas.

3. Generally try not to use single agents, as single-agent application has side effects. It is recommended that ethephon single agent be used with DA-6, combining quick action with long-lasting effect, so the application time can be earlier and it is less affected by weather. When using corn growth regulator, add an appropriate amount of compound sodium nitrophenolate raw powder; the regulation time can be earlier, the dosage can be slightly reduced, the concentration range can be adjusted, side effects disappear, and the effect of controlling excessive growth and increasing yield is excellent. In addition, chlormequat, mepiquat and DA-6 used together have outstanding effects in controlling excessive growth and increasing yield, the application time can be earlier, and there are no toxic side effects.

4. Compound formulations can be mixed with insecticides and fungicides.

5. The remaining liquid after spraying must not be disposed of casually. It is not suitable to spray a second time in the field, nor should it be poured at the edge of the field. It is best to pour it in a place where no crops grow; after a period of time, mepiquat chloride will degrade on its own in the soil.

Mepiquat chloride on corn must be applied according to the requirements, otherwise you will fail in your attempt and suffer a loss, causing certain damage to the corn.