How does paraquat work?

How does paraquat work? How does paraquat work well? Ask netizens to help introduce the characteristics and usage of the herbicide paraquat in the field network, which is listed below for netizens' reference. The characteristics of paraquat: 1, see green kill green, weeds, crops swept away. 2. the speed of killing grass is very fast, and the leaves begin to change color and yellowing within 2-3 hours after spraying, and the green part can be destroyed within 3-4 days, and the whole plant will dry up and die. 3. The weeding effect is related to the weather. The effect comes quickly in sunny days, and the weeds begin to wither 24 hours after application; in cloudy days, the effect is slow, but the weeding effect is more thorough. 4. Without internal absorption and conduction, the chemicals absorbed by leaves can not be transmitted to the roots and underground stems, so they can only kill the aboveground green parts of perennial weeds and have no killing effect on underground parts. 5. The pesticide falls on the soil and decomposes quickly, so the crops can be planted in a short time after application. 6. because it does not kill the underground roots and stems of perennial weeds, the non-cultivated land in hilly and mountainous areas, and weeding before crop sowing. Usage of paraquat: method 1, fruit, forest, tea, mulberry and yard weeding, below 15 cm in height of weeds, 150-250 ml per mu of water agent, spray on water. Water should be able to spray all weeds. Paraquat has a killing effect on green bark, so it should be sprayed directionally between plants and rows. Method 2. Weeding in ridges, roads and canals. Under 15 cm of weeds, spray weeds with 200 times of 20% water agent. When spraying on the ridge of the field, it is necessary to prevent the fog droplets from harming the seedlings in the field. Method 3. Weeding in low-tillage or no-tillage fields. After harvesting in the previous crop, before sowing and planting in the following stubble, 100-150 ml per mu of water agent was used to spray water on the stems and leaves of weeds. Click to get more herbicide application techniques