Best Herbicide for Grass in-depth Demand Report

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Reasonable concentrationWhether it is a liquid or a wettable powder, it is necessary to dilute the water before spraying. Different bactericides are required to use the concentration. Therefore, the ratio should be strictly in accordance with the instructions. The reasonable concentration of the bactericide is more conducive to the effectiveness of the bactericide. If the ratio is arbitrarily matched, the concentration will be too high to cause phytotoxicity to the crop; if the concentration is too low, the control requirements will not be met.Suitable spraying timeThe time of spraying the bactericide is directly related to the control effect. Spraying too early will cause waste of the drug and reduce the control effect; the late pathogen has already caused damage to the crop. Therefore, it is necessary to timely use drugs according to the laws, predictions and specific conditions of different diseases. In general, the time of administration of the bactericide can be selected before or during the onset of the disease.Improve the quality of medicationThe quality of the bactericide used includes the amount of the drug, the number of times of administration, and the quality of the spray. The amount of medicine should be appropriate. Too much medicine will increase the cost and cause phytotoxicity. If it is too little, it will not achieve the control effect. Therefore, it will increase or decrease according to the specific conditions. The number of medications may depend on the residual period of the drug and the weather conditions. Generally, it is sprayed once every 10-15 days, and sprayed 2-3 times. If it is raining after application, it needs to be refilled. The method of improving the quality of the drug is that the spray point is evenly and finely sprayed, and the stems and leaves of the plant are sprayed.Strictly prevent phytotoxicityThere are many reasons for fungicides causing phytotoxicity. The agents themselves, crop sensitivity, crop growth stages and climatic conditions all have an impact. In general, drugs with strong water solubility and crops have a high probability of causing phytotoxicity in the seedling stage and the flowering stage of the booting stage, high temperature and drought, fog and high humidity, and therefore need to be handled with caution.

Herbicide is a substance that causes weeds to die completely or selectively, also known as herbicides, to destroy or inhibit plant growth.Among them, sodium chlorate, borax, citrate and trichloroacetic acid have a dead effect on any kind of plant, and their effects are affected by three factors: herbicide, plant and environmental conditions. According to the action, it is divided into quenching and selective herbicides, and most of the selective herbicides, especially nitrophenol, chlorophenol and carbamic acid derivatives, are effective. The development of herbicides in the world has gradually stabilized, mainly developing high-efficiency, low-toxic, broad-spectrum, low-volume varieties, and disposable treatment agents with little environmental pollution have gradually become mainstream.Commonly used varieties are organic compounds, which can be widely used to control harmful plants such as weeds, miscellaneous irrigation, and mixed trees in farmland, orchard, flower nursery, grassland and non-cultivated land, railway lines, rivers, reservoirs, warehouses, etc.

With the modernization of agriculture, farmers also use high-tech products, biological pesticides, pesticide mixtures and other chemical products in agricultural production. However, the most popular pesticide products are herbicides, so the sales of herbicides have been It ranks first in pesticides. However, there are many varieties of herbicides on the market, and the application technology is also high.If there is a slight inadvertent application, there will be problems such as phytotoxicity and poor weeding effect. Then, how to master the selection of herbicide varieties and their use techniques is the key to improving the herbicidal effect of herbicides. The authors of China's first pesticide network have summarized and analyzed how to improve the herbicide weeding effect.