Glyphosate is a herbicide herbicide . Improper use can cause potential safety hazards to crops, especially when it is used to control weeds or orchard weeds. It should be emphasized that when glyphosate is used in fruit trees such as citrus orchards, the root system is still damaged, and long-term use may cause yellowing of fruit trees.

Although Xiaobian does not recommend common herbicides, it is still inseparable from herbicides. There are more users of glyphosate on the market than glufosinate. This time we chose to push an article about the use of glyphosate.

First, the most important one to use glyphosate is to choose the best period of medication

Glyphosate is a systemic herbicide, so it is best to use it before flowering.

Generally, grass weeds are sensitive to glyphosate and can be killed by low-dose liquids, while the concentration is increased when controlling broad-leaved weeds; higher concentrations are required for some perennial rhizomes-producing malignant weeds. The weeds are older and the resistance is improved, and the corresponding dose is also increased.

Second, which temperature environment is more conducive to the efficacy?

In the range of 24~25°C, the absorption of glyphosate by the weeds doubled with the increase of temperature, so the effect of the drug was better when the atmospheric temperature was higher than the temperature.

The high relative humidity of the air can prolong the wetting time of the liquid on the surface of the plant and facilitate the conduction of the drug.

When the soil moisture and water content are small, it is not conducive to the metabolism of plants, which is not conducive to the conduction of drugs in weeds, so the efficacy is also reduced.

3. Which herbicides can glyphosate not be mixed with?

Some herbicides such as metformin and other quick-acting herbicides cannot be mixed with glyphosate, which will cause premature death on the weeds, loss of the endocrine conduction function of glyphosate, and reduction of glyphosate. The killing effect of phosphine on the root weeds of underground weeds.

However, adding some plant growth regulators and adjuvants (silicone) to glyphosate can improve the control effect.

Fourth, want to have good efficacy, please pay attention to these few precautions

The method of drug control is very important for glyphosate to control weeds, because the higher the concentration in a certain concentration range, the finer the droplets of the sprayer are, which is beneficial to the absorption of weeds. The more the amount is used, the better the herbicidal effect.

Glyphosate is a herbicide that kills crops if not used properly. Pay attention to the directional spray and do not spray on other crops. Glyphosate needs to be degraded for a period of time, and it is safer to transplant the crops about 10 days after clearing.

Glyphosate is a systemic, chronic broad-spectrum herbicide that inhibits the enol acetone-based valerin phosphate synthase in the body, thereby inhibiting the conversion of valerin to phenylalanine, tyrosine and tryptophan. Transformation causes disruption of protein synthesis leading to plant death.

Glyphosate is absorbed by stems and leaves and transmitted to various parts of plants. It can control more than 40 families of monocotyledons and dicotyledons, annual and perennial, herbs and shrubs.

Precautions:

1. When applying the medicine, the nozzle with 0.8 mm aperture is better than the nozzle with 1.0 mm aperture. The agent is effective only after it has been contacted with the stems and leaves. It should be evenly sprayed to allow the weeds to adhere to the agent.

2, the use of glyphosate, generally weeds out, 4 to 6 leaf stage, with 10% water agent 0.5 ~ 1 kg per acre, add diesel 100 ml, add water 20 ~ 30 kg, evenly spray weed stem leaf.

3. When treating stems and leaves on weeds, it is strictly forbidden to make the liquid contact with vegetables and other crops to prevent phytotoxicity.

4. When the leek is used to kill the grass, it should be on the day after harvesting the leek (cannot be used until the next day), using 41% glyphosate water, in the annual weed-based plot, using 0.2 liter of water. In the plots where perennial weeds are dominant, 0.3 liters of water is used, 30 kilograms of water is used, and the liquid is sprayed in the whole field.

5, with a lower hardness of the water with a pharmaceutical liquid, the used sprayer should be repeatedly cleaned to avoid other crop damage caused by future use. It should not be mixed with quick-acting herbicides such as dimethyltetrachloride and gram. For example, adding 0.1% detergent powder to glyphosate or adding 30g diesel oil per acre can enhance the efficacy.

6, glyphosate used in vegetable field weeding, should be used in the vegetable field without vegetables, can be used 10 to 1 kg per acre of 10% water, killing crabgrass, bluegrass, hedgehog, wild beans and other miscellaneous grass. Use 1% to 1.5 kg of 10% water to eliminate weeds such as fragrant aconite, plantain, small canopy, and annual canopy. Use 10% water agent 2 ~ 2.5 kg to eliminate weeds such as white mullet, reed, plough grass, Bermuda root, and Pinellia. All water is 60 to 75 kg, and the whole field is sprayed.

7. When the daylily field is used to kill grass, it can be used in the flowering period of daylily, with 1% 2kg of water, 1~2kg, 50kg of water, whole field spray, can eliminate white stalk, double-spotted gar, dogtooth root, yellow (purple ) Weeds and other weeds.

More pesticide knowledge , please pay attention to China Pesticide Network

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