Paraquat is a quick contact herbicide with both contact and certain systemic action. It can be quickly absorbed by the green tissues of plants, causing them to wither. It has no effect on non-green tissues. In the soil, it quickly merges with the soil and becomes钝化, losing its effect on the roots and perennial underground stems of plants. So, what are the effects of the Paraquat herbicide? Below, I will introduce it to everyone.

Paraquat can be used for chemical control of various annual weeds; it has a significant destructive effect on perennial weeds, but the underground stems and roots can grow new branches; it has no effect on deep brown stems and trunks that have become woody. It is suitable for the chemical control of weeds in plantations, mulberry gardens, rubber plantations, and shelterbelts, and can also be used to prevent weeds on non-agricultural land, field sides, and roadside areas. For crops with wide rows such as corn, sugarcane, soybeans, and seedling bases, fixed spray nozzles can be used for chemical control of weeds.

Paraquat can be used as an auxiliary drug in the application of defoliation agents for mechanized harvesting of crops in the middle and later stages. Because the defoliation effect of defoliation agents on crops is not ideal before harvesting, Paraquat can quickly kill the green tissues of crops, making them dry out, which does not affect the short-term accumulation and transportation of fruits after mechanical harvesting. For example, the cotton and chili peppers harvested are seeds with a low moisture content. When the moisture content is high, short-term accumulation can cause mildew. This requires that fresh leaves and stems be avoided during harvesting, and Paraquat should be used to quickly kill the green tissues, thereby reducing the moisture content of cotton and chili peppers, ensuring that they can be short-term stored and transported after mechanical harvesting.

Paraquat has a high safety coefficient for crops. As a contact herbicide, if it is not sprinkled on the green leaves and stems of crops, the medicine water will only stain the deep brown woody roots and branches, causing no damage to crops, flowers, and trees. When Paraquat comes into contact with the soil, it loses its specificity, and it should be removed 1-2 days before planting, ensuring the safety of crops.