The latest corn seedling weeding skills

The weeds in the corn field not only affect the growth of corn, but also compete for water and fertilizer in corn seedlings, seriously affect the growth of corn, but also induce and aggravate the harm of diseases and insect pests. So how to weed in the corn field? Let's take a look at the weeding skills of corn seedlings with the editor.

1. Corn weeding should be done as soon as possible

First of all, corn weeding should be controlled as early as possible before the weeds are unearthed. If the weeds grow more than 3 leaves, the best control period will be lost, and the efficacy will often decline and fail to achieve the desired effect. There are two reasons for the use of herbicides at this time, one is that the resistance to weeds is small and is easy to be killed, and the other is that at the initial stage of seedlings, the control is relatively safe and basically does not affect the growth and development of seedlings. Herbicides should master the correct weeding period, when the ideal control period is 3-5 leaves, or between 3 leaves of weeds, during this period, correct control can be carried out in order to effectively control the growth of weeds and properly grasp the weeding period to achieve the best control effect.

2. The dosage of herbicide should be moderate.

Herbicides are more or less effective for maize seedlings, so we should pay attention to the dosage of herbicides when using herbicides to reduce the damage of herbicides to maize seedlings. If the dosage of the pesticide is too much, it is very likely to cause drug damage, resulting in the death of maize seedlings, while the pesticide is used too little. Can not achieve the effect of weeding, we must strictly follow the instructions when spraying, seedling soil treatment type chemicals generally 150-200 grams per mu, generally 80-150 grams per mu after seedlings.

3. Ensure soil wettability

Soil temperature and humidity is the key to ensure the efficacy. Using the medicine after the rain in the seedling stage can ensure that the medicament is mainly absorbed by weeds quickly, and the soil is relatively moist. The actual spraying solution is very easy to form a drug film on the soil surface, and certain weeds sprout and unearthed. Opportunity to contact and absorb the solution, so as to kill weeds. In the case of drought, the solution is easy to volatilize, so it is impossible to guarantee that the effective components of the solution are diffused into touch, which seriously affects the weeding effect.

4. Points for attention in dispensing

In dispensing, there must be secondary dilution, not direct mixing of water and medicine, especially powder type medicine. on the premise of selecting a certain amount of water, a small amount of water should be evenly mixed with the medicine, and then the remaining water should be added evenly, and then sprayed evenly, so as to avoid uneven mixing of water and medicine, resulting in uneven distribution of drug concentration, resulting in the death of weeds in this area where the medicine is sprayed. The weeding effect of weeds that continue to grow in that area where they are sprayed with water.

The above is the introduction of corn seedling weeding skills, hope to help you, want to know more related knowledge, please follow us.