What are the common types of non-selective herbicides?

With the continuous development and progress of agricultural technology, it can be said that today's agricultural production has achieved many new results, including the research and development of many new herbicide varieties. At present, herbicides on the market are truly diverse, and ordinary farmers find it hard to fully figure them all out. So today, the editor of Nongxun Net will introduce non-selective herbicides among herbicides, hoping everyone can better understand the characteristics and methods of use of herbicides.

Types of non-selective herbicides

Non-selective herbicides are a type of herbicide that has a toxic and killing effect on all plants, and most of these agents are artificially synthesized. The weeding principle of non-selective herbicides is that they are absorbed through the roots, stems, leaves and other parts of weeds, and the agent is transported to the action site of the weeds through the conducting tissue, destroying the internal structure and physiological balance of the weeds, and inhibiting the growth of the weed plants until they die. Their main varieties include the following four major categories:

1. Glyphosate

Glyphosate can be said to be the most widely applied and most cost-effective non-selective herbicide variety at present. Glyphosate has good effects on grassy weeds and others, and for reeds, you can also cut off the stems and then apply undiluted glyphosate to the wounds on the stems. However, because glyphosate has been used for a long time in many regions, weeds such as fleabane have already developed strong resistance to it, and glyphosate takes effect relatively slowly, but its systemic conductivity is very strong, and it can be conducted through the stems and leaves to the underground parts, killing the weeds down to the roots. In addition, on wasteland, triclopyr can be added to enhance the efficacy of glyphosate.

2. Glufosinate

Besides glyphosate, the one used more often is glufosinate. This agent is more suitable for weeding in areas with resistant fleabane and goosegrass, but its effect on bamboo and others is also not very good. Its weeding principle is to throw the ammonium metabolism in the weeds into disorder, causing the cytotoxic ammonium ions to accumulate in the plant, while photosynthesis is severely inhibited, thereby achieving the purpose of weeding. In addition, the main advantages of glufosinate are that it does not destroy soil structure and does not harm crop roots, and it is relatively safe and reliable for fruit trees.

3. Paraquat

Paraquat is a fast-acting non-selective herbicide. This agent has a very strong destructive effect, and weed leaves begin to suffer damage and change color 2 to 3 hours after the agent touches them. Because paraquat has the advantages of taking effect quickly, being resistant to rain washing, and being cost-effective, it is deeply favored by farmers, but its toxicity is strong and it is very harmful to humans and livestock, and there is currently no specific antidote, so it must be used with caution.

4. Diquat

Diquat is the most similar to paraquat, with a fast weed-killing speed. Diquat is more effective than paraquat against certain malignant weeds. When using diquat, it is recommended to use a sufficient amount to avoid phenomena such as regreening.

In summary, the above is an introduction to the four common types of non-selective herbicides. Overall, these four non-selective herbicides each have their own advantages and disadvantages, and the types of weeds they are suitable for and their weeding principles are also different. Everyone can choose according to the actual planting situation. In the process of using herbicides, it is also necessary to do a good job of scientific weeding, and the concentration and dosage should not be excessive, so as to avoid phytotoxicity.

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