Long-term residual herbicides are herbicides that have been used in certain soils for more than one year after they have been used. They are susceptible to different degrees of phytotoxicity. Therefore, it is necessary to pay attention to the harm of such herbicides to the crops. .......

Technical innovation content:
1. Change the pre-distillation process to pre-separation--pre-distillation process, improve the capacity of one-stage decomposition, not only improve the CO2 conversion rate, but also save steam consumption;
2. Improve the internal structure of the u.......

Nitrate has been shown to be reduced to nitrite by microbial action in and out of animals, which indirectly binds to secondary amines to form strong carcinogenic nitrosamines. Of the more than 120 nitrosamines currently found, 75% cause cancer in animals. 81.2% of the nitrates ingested by .......

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• Model NO.: Customized
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• Model NO.: See product list
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The beet armyworm, the scientific name Laphygma exigua Hubner, is a pest of the Lepidoptera, and is also known as the Spodoptera frugiperda. The main hosts are more than 170 kinds of vegetables and plants such as cabbage, broccoli, radish, lettuce, tomato, green pepper, eggplant, potato, c.......