Why do farmers use Paraquat

Spraying paraquat makes it easier for millions of farmers to grow better crops and protect the environment. Paraquat has many characteristics:
Rapid and effective control of weeds
Paraquat can control most of the annual weeds and inhibit perennial weeds, so as to eliminate the competitiveness of weeds. Because of its rapid onset, farmers can grow a variety of crops in a growing season.
The widespread use of paraquat almost did not cause resistance to weeds, and compared with the latest herbicides such as sulfonylurea herbicides, paraquat is particularly evident. Once they become resistant, the help of these herbicides will be greatly reduced.
Glyphosate is also one of the main broad spectrum non selective herbicides. Paraquat is an alternative to non selective herbicides, and many farmers and scientists regard it as the key to solving this problem. For further understanding of weed resistance, visit the international survey site for herbicide resistant weeds (www.weedscience.org).
Reliable in all climates
Even a few minutes after spraying rain, paraquat effect is not affected. Before the rain washed away a large number of paraquat, paraquat has rapidly infiltrated leaves. Even in the tropics, paraquat can also produce 15-30 minutes after application of rain.
Unlike most herbicides, paraquat is equally effective even at low temperatures in which the weeds are actively growing. Therefore, paraquat is very suitable for early season seedbed preparation, and most of the autumn fruit processing.
Crop safety
Paraquat only in contact with onset. With drugs of plant tissue is rapidly destroyed, so it will not transfer a lot of drugs from the leaves into the distance without spraying medicine, such as roots and hidden bud growth point. Glyphosate slow onset, and will transfer between plants; paraquat with different spraying is not accurate or not to harm the crops on. Paraquat can safely control a variety of arable crops and weeds in vegetable crops.
Paraquat can not penetrate the mature bark, so it can be safely sprayed around trees and shrubs. While glyphosate may penetrate the bark and cause permanent damage to crops and trees and vines. Alternative methods - Mechanical farming - may damage root.
In the soil, paraquat is rapidly adsorbed by clay particles, and lose biological activity. Since paraquat has no residual activity in the soil, it can be sprayed before or before the crop is planted.
Harmless to soil
All kinds of plants, animals and microorganisms can not be exposed to paraquat in the soil, so it will not affect them.
Although paraquat can quickly kill weeds sprout, but the root rate of decay was slow, these roots can be fixed on the slope soil, the soil erosion is susceptible to damage from.
Environmental safety
Paraquat has a unique biological and physical and chemical properties, especially the rapid onset and strong adsorption capacity, so that it has a very reliable environmental safety.
Soil absorption and degradation
A variety of soil can absorb paraquat. In this regard, the clay content is very important, but even lower clay content of the soil, a few centimeters per hectare, the upper layer of soil can also be adsorbed and passivated a few kilograms of paraquat.
Only trace amounts of paraquat can be released from soil to soil moisture. Microbes in the soil, however, degrade it to carbon dioxide, ammonia and water, preventing it from accumulating in the soil.
It does not leach or enter the groundwater.
Although paraquat is easy to dissolve in water, but because of its strong adsorption on the soil, it will not leach into groundwater. Paraquat in the soil is almost impossible to move.
Residues in crops
Paraquat residues in harvested crops will not cause harm. Spraying paraquat to control weeds around edible plants. The leaf of paraquat is difficult to enter or move to grains or tubers. In addition, the sun's ultraviolet rays will make the surface of paraquat degradation, adsorption of soil can also prevent paraquat through the roots into the crop. The use of paraquat to harvest, but the drugs can not enter the grains and tubers.
The safety of livestock, domesticated animal, wildlife and native animal communities
Even if the drug sediment dry, as long as the spraying recommended for dilution, it is sprayed with paraquat into farmland or domesticated animal, edible with paraquat grass livestock, their health will not be affected. Paraquat is firmly fixed in the plant tissue, so it is not easy to be absorbed by animals. Any amount of residue can be quickly discharged.
We have five consecutive years in the spraying of a farm far exceeds the normal dosage of paraquat, including around under the hedge and hedge, wild birds and then observing the farm, the results both the quantity and types of birds are not adversely affected. According to the long-term observation of wildlife in France and Britain, paraquat is not the main cause of death or decrease in rabbits.
Not because of paraquat with biological activity in the soil, it will not cause adverse effects on the soil animal community.
Safety in water
Since paraquat does not enter the water, it will not cause harm to fish or invertebrates as long as it is recommended. Even if the paraquat is poured into ponds, rivers or ditches, the absorption of plants and silt, as well as microbial degradation. Extensive ecology