The same corn field herbicides, why the effects vary widely?
In recent years, it has become more and more common to use herbicides on corn fields. However, many users have asked that the herbicides purchased at the same time have a good effect on one field and the other has a poor effect. What is the reason? What?
In fact, the reason for this phenomenon, in addition to the quality difference of the herbicide product itself, is mainly affected by many other external factors. Specifically, there are several factors:
1. Spraying the herbicide too late.
At present, the herbicides used by everyone are generally applied in the 2-5 leaf stage of corn and the 2-3 leaf stage of weeds. The time of administration is too late, resulting in excessive grass age, insufficient medication, and serious adverse effects.
2. Improper application method.
If the advancement is still applied as when spraying the corn herbicide, the footprint will destroy the film that has not yet formed on the surface of the liquid, resulting in a serious decrease in the efficacy of the herbicide.
3. The humidity in the field is not enough.
When the herbicide is sprayed on the corn, the humidity in the field is not enough, and the moisture in the liquid contact with the surface immediately evaporates, so that the liquid cannot form a film on the surface, which causes the drug to not function properly and has a poor effect.
4, the water consumption is too small, the film coverage is uneven.
There are many users, the water consumption is too small, generally requires at least 30-40 kg of water per mu, and individual users use only one bucket of water per acre.
5. Differences in application time.
Some workers are not excluded. In order not to delay the work, the medicine is sprayed during the lunch break at noon, and the liquid evaporates quickly, which affects the weeding effect.
6. The wheat bran is too high, the wheat straw is not cleaned, and the liquid is sprayed on the soil layer.
7, the soil reasons.
Sandy soil, saline-alkali land and over-fired ground (the grass ash is alkaline) have a certain effect on the weeding effect.
For the above reasons, we recommend that you maintain the appropriate humidity in the field when applying the herbicide to remove excessive wheat straw from the wheat field.
According to the appropriate adjustment or reduction of the amount of soil, choose to spray in the 2-5 leaf stage of corn, 2-3 leaves of weeds, and when the soil surface humidity is high in the morning or evening, form a film to improve the herbicidal effect and spray it. The process is reversed to ensure that the herbicide's efficacy is working properly.
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