Introduction of common kinds of herbicides

With the continuous development and progress of agricultural technology, it can be said that agricultural production has made a lot of new achievements, including the research and development of many new varieties of herbicides. At present, there are a wide variety of herbicides on the market, but it is difficult for ordinary farmers to figure them out. Well, today, the editor of Nongxun Network will introduce the herbicides among the herbicides, hoping that you can better understand the characteristics and usage of herbicides.

Species of herbicide

Herbicides such as herbicides are toxic to all plants, and most of them are synthetic. The weed control principle of the herbicide is that it is absorbed by the roots, stems and leaves of the weeds, and sent to the action parts of the weeds through the transport tissue, destroying the internal structure and physiological balance of the weeds and inhibiting the growth of weed plants until death. Its main varieties include the following four categories:

1. Glyphosate

Glyphosate can be said to be the most widely used and cost-effective variety of herbicides. Glyphosate has a good effect on grasses and other weeds. For reeds, you can also cut off the stalk, and then add glyphosate without water to the stem wound. However, due to the long-term use of glyphosate in common areas, weeds such as Erigeron have developed strong resistance to glyphosate, and the effect of glyphosate is slow, but its internal absorption and conductivity is very strong, and it can be transmitted to the underground part through stems and leaves. Weeds can be killed by roots. In addition, trichloropyloxyacetic acid can be added to the wasteland to enhance the efficacy of glyphosate.

2. Glyphosate

In addition to glyphosate, glyphosate is more commonly used. It is more suitable for weeding in areas with resistance to Euphorbia sibirica and Euphorbia angustifolia, but it is not very effective for bamboo. The principle of weeding is to make the metabolism of ammonium in weeds in disorder, the accumulation of cytotoxic ammonium ions in the body, while photosynthesis is seriously inhibited, so as to achieve the purpose of weeding. In addition, the main advantage of glyphosate is that it does not destroy soil structure and crop roots, so it is relatively safe and reliable for fruit trees.

3. Paraquat

Paraquat is a quick-acting herbicide, which has strong damage, and the weed leaves begin to change color 2-3 hours after spraying. Paraquat is favored by farmers because of its quick effect, resistance to Rain Water erosion and high performance-to-price ratio, but it is highly toxic and harmful to people and animals, and there is no special antidote at present, so it should be used with caution.

4. The enemy grass is fast

Enemy grass is the most similar to paraquat, the speed of dead grass is fast, and the effect of dealing with malignancy is better than that of paraquat. When using enemy grass fast, it is recommended to use enough to avoid turning green and other phenomena.

To sum up, it is the introduction of the four common types of herbicides, generally speaking, these four herbicides have their own advantages and disadvantages, and the applicable types and principles of herbicides are also different, we can choose according to the actual planting situation. In the process of using herbicides, we should also do a good job in scientific weeding, and the concentration and dosage should not be excessive to avoid drug damage.

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