In recent years, with the rapid development of the pesticide industry, the types of pesticides are also increasing. The development of new and efficient pesticides has always been an important measure in the pesticide sector. In the case of glyphosate and glufosinate, the glufosinate and glyphosate formulations will replace the registration and compounding advantages in the future.
Glyphosate is a systemic, chronic broad-spectrum herbicide that inhibits the enol acetone-based valerin phosphate synthase in plants, thereby inhibiting the conversion of valerin to phenylalanine, tyrosine and tryptophan. Transformation causes disruption of protein synthesis leading to plant death. Glyphosate is absorbed by stems and leaves and transmitted to various parts of plants. It can control more than 40 families of monocotyledons and dicotyledons, annual and perennial, herbs and shrubs.
Glufosinate is a phosphonic acid herbicide, a partially systemic, non-conductive, contact-killing herbicide. Unlike glyphosate root killing, glufosinate first kills leaves, inhibits glutamine synthetase activity in plants, leading to glutamine synthesis inhibition, nitrogen metabolism disorder, and ammonium ion accumulation, thereby destroying plant cell membranes and preventing plant photosynthesis. The effect is dead.
As of the end of February 2015, a total of 829 glyphosate products were registered in China, including 142 original drugs , 10 parent drugs, 636 single preparations (379 water agents, 255 soluble granules, 1 water-soluble granule, 1 water-dispersible granule), 41 mixed preparations.
The mixed preparation is mainly with 2, 4, 4, chloroform, acesulfame, oxyfluorfen, bensulfuron, trichloropyridinic acid, flufenoxyacetic acid, flufenoxacilin, Mixing of pyriprene and the like. There are 410 registered enterprises, including 67 in Jiangsu, 62 in Shandong, 36 in Guangxi, 28 in Henan, 27 in Anhui, 26 in Zhejiang, 1 in Jiangxi, 16 in Hunan, Guangdong and Sichuan, and 14 in Hubei. There are 12 in Hebei and 10 in overseas.
A total of 102 glufosinate products were registered in the country, including 23 original drugs, 4 parent drugs, 73 single agents (70 water agents, 3 soluble granules), and 2 mixed preparations. The compounding preparation is mainly mixed with acesulfame and oxyfluorfen. There are 77 registered enterprises, including 19 in Jiangsu, 12 in Shandong, 8 in Guangdong, 8 in Zhejiang, 5 in Hebei, 4 in Anhui, 3 in Hainan, Shanxi and Shanghai, and in Jiangxi, Sichuan and Tianjin. 2 homes, 2 overseas.
Glyphosate is mainly registered in apple orchard, citrus orchard, pear orchard, banana garden, tea garden, mulberry garden, sugar cane field, rubber plantation, sisal garden, forest, corn field, cotton field, no-till spring rapeseed field, no-till winter rapeseed Field, no-till, throwing rice fields, fire barriers, non-cultivated land, good control of annual weeds such as cockroaches, foxtail, maiden, crabgrass, cocklebur, cockroach, cockroach, and piglet.
Glufosinate is mainly registered in non-cultivated land, papaya garden, tea garden, banana garden, citrus orchard, vegetable land, etc., for annual and perennial broadleaf leaves and grass weeds, such as rat tails, acacia, crabgrass, alfalfa, wild Barley, ryegrass, foxtail, golden foxtail, wild wheat, wild corn, duck buds, sage, grass, fescue, goosegrass, small canopy, etc.
The study on the mixing of glyphosate and glufosinate is generally based on the following points:
1 Glyphosate is a chronic broad-spectrum herbicide for systemic absorption, and glufosinate is a contact herbicide. The compound type and mechanism of action are different, and the compounding is theoretically feasible.
2 Glyphosate and glufosinate can improve the weed control effect, expand the herbicidal spectrum, make up for the deficiency of glyphosate in the herbicidal spectrum, and treat some malignant weeds such as goosegrass that are resistant to glyphosate. Xiaofei Peng and other effects are good.
3 Glufosinate is excellent but expensive. At present, the price of glufosinate is about 10 times that of glyphosate, and its output can not meet the market demand. The combination of the two can reduce the cost of drugs.
4 Glyphosate needs to be absorbed into the weeds to play a role. It is slower in weeding speed. Generally, it shows obvious symptoms about 7 days. When the temperature is low, the effect is slower. Glufosinate is contact type and weeding speed. Fast, generally 2 to 3 days, obvious symptoms, less affected by temperature. Therefore, the combination of the two can increase the weeding speed and meet the traditional psychological expectations of agricultural producers.
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