1. The glyphosate liquid must be transferred to the rhizome tissue under the weed in a large amount to achieve the weeding effect. This requires the weeds to have more leaves. If the weeds are small and the photosynthesis is not strong before use, the nutrients stored in the roots will be conducted from bottom to top. At this time, when the medicine is used, the amount of liquid injected into the roots is very small, and it will To the effect of killing weeds; while in the middle and late stages of weed growth, photosynthesis is strong and photosynthetic products are conducted from top to bottom. At this time, the drug effect is best. Therefore, the most important aspect of using glyphosate is to select the best period of administration. If glyphosate is used to control weeds in corn fields, it is best to have 2-3 old residual leaves in the lower part of the corn seedling height 1.5 meters, and the best application is when the grass height reaches 10 cm.

2. To pay attention to environmental conditions. In the range of 24-25 degrees, as the temperature rises, the absorption of glyphosate by weeds doubles. Therefore, the effect of the medicine is better when the atmospheric temperature is higher than when the temperature is lower; the high relative humidity of the air can prolong the liquid on the plant surface. Wetting time is conducive to the conduction of drugs; when the soil is dry and water content is low, it is not conducive to the metabolism of plants, which is not conducive to the conduction of drugs in weeds, so the efficacy of the medicine is also reduced.

3. Regarding the problem of mixing glyphosate with other herbicides, some farmers want to weed a variety of grasses. In order to save labor, other herbicides were added arbitrarily when using glyphosate, but the result was not good, because some weeding Weeds cannot be mixed with glyphosate. Quick-acting herbicides such as dimethyltetrachloride and glyphosate cannot be mixed with glyphosate to avoid premature death on weeds and loss of glyphosate. The systemic conduction function of phosphine. Reduced the killing effect of glyphosate on underground weed rhizomes. But adding some plant growth regulators and adjuvants to glyphosate can improve the control effect.

4. Choose the best application method. The method of application of glyphosate is very important for the control of weeds, because the higher the concentration within a certain concentration range, the finer the sprayer droplets, which is beneficial to the absorption of weeds. In the case of the same concentration, the more the amount, the better the weeding effect. Adding 0.1% washing powder to glyphosate, or adding 30 grams of diesel oil per mu can enhance the spreading, permeability and adhesion of the drug and improve the control effect.

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