Chemical control of weeds is an economical and effective way to control grass pests. By spraying herbicides, weeds are killed alternately, and turf grass is protected. What are the preventive measures for grass pests? Effective crop rotation, transmission inhibition of weed germination, or promotion of weed germination, and the elimination of weeds. Soil tillage measures such as plowing, harrowing, and mulching have always been the basic way to eliminate weeds and are also a key method in modern agricultural production. The use of animals, insects, pathogens, and other microorganisms can also eliminate some weeds. It can also use mulching technology to control weeds in the field; chemical weeding is to use herbicides to control weeds, and in order to protect crops, it is necessary to coordinate the relationship between herbicides, weeds, crops, and the environment. Do you know the harm of paraquat to the soil?

Paraquat is harmless to the soil layer. The drug quickly blends with the soil and purifies in the soil, and has no effect on the roots of green plants and underground stems of perennial plants. In other words, it has a strong contact toxicity and little systemic effect, causing little harm to the soil. As long as we control the frequency of application, it is relatively safe.

Application scenarios:

1. Application in plantations, mulberry orchards, tea trees, rubber plantations, and shelter belts: When weeds are fully emerged and in the best growth period, 1 mu uses 100-200ml of 20% powder, mixed with 25KG of water, for uniform spraying on weed leaves and stems. When the weeds grow to more than 30cm, the dosage should be doubled.

2. Application in fields of crops with wide rows such as corn, sugarcane, soybeans, etc.: Can be treated before sowing or before seedling emergence, or in the latter half of the growth period of crops, use protective directional sprayers for chemical control of weeds between rows. Before sowing or before seedling emergence, 1 mu (1/15 acre) uses 75-200ml of 20% powder, mixed with 25KG of water for chemical control of emerged weeds. During the growth period of crops, 1 mu uses 100-200ml of 20% powder, mixed with 25KG of water, for directional protective spraying between rows.

3. Specific experience shows that paraquat has no significant effect on Scrophularia nepalensis.

According to my detailed introduction, paraquat is harmless to the soil layer, and everyone can rest assured about this.