111 results about "Alachlor" patented technology

The invention relates to safety herbicide for a corn field. An active ingredient of the safety herbicide is prepared by mixing topramezone and one or more than one of atrazine, ametryn, amides active compound, the mass ratio of topramezone to atrazine is 0.5-8:1-30, the mass ratio of topramezone to ametryn is 0.5-8:1-30, and the mass ratio of topramezone to amides active compound is 0.5-8:1-30. The amides active compound is alachlor, pretilachlor, butachlor or metolachlor. The topramezone has remarkable synergistic effect after adding atrazine / ametryn, the herbicide has good prevention and control effect on weeds and has good preventing and removing effect on malice broad leaf weeds such as cirsium setosum, chicory, acalypha australis and dayflower. The topramezone has a wide weed control spectrum, is safe for the height of corns, and can effectively synergize after combining the atrazine and the like. After combination, use amount of atrazine alone is reduced, and safety of the corns is improved.

The invention relates to a high performance liquid chromatography-tandem mass spectrometry measuring method of three amide herbicides (i.e., alachlor, metolachlor and napropamide) in tobacco and tobacco products, which belongs to the technical filed of physical and chemical inspection of pesticide residue in the tobacco and tobacco products. The high performance liquid chromatography-tandem mass spectrometry measuring method is characterized by being the method which is used for directly extracting the pesticide residue by a substrate dispersion solid-phase extraction method to directly measure the pesticide residue in the tobacco and tobacco products by virtue of chromatography-tandem mass spectrometry. The high performance liquid chromatography-tandem mass spectrometry measuring method of three amide herbicides in tobacco and tobacco products disclosed by the invention can be used for overcoming the defects of the sample treatment method in the prior art, and optimizing the sample pre-treatment method and the apparatus detection condition for the tobacco sample. Moreover, compared with the prior art, the method disclosed by the invention has the excellent effects that the sample pre-treatment process of the method is simple and quick, capable of reducing the interferences of the impurities including pigment and the like in the tobacco, and provided with the advantages of being accurate to operate, high in flexibility and good in repeatability.

The invention belongs to the technical field of the pesticide, and relates to herbicide, which comprises phenoxy ethyl alachlor of active ingredient formula (1). The herbicide is of suspension agent; by utilizing the herbicide, the problem that when the phenoxy ethyl alachlor in the formula (1) is used for weeding out the phenoxy ethyl alachlor in the formula (1) cannot uniformly enter the grass to cause the waste of partial phenoxy ethyl alachlor and to reduce the weeding effect can be solved.

The invention discloses an oxygenase gene caceO as well as coded protein and application of the oxygenase gene caceO. The sequence of the cloned oxygenase gene caceO is shown in SEQ ID NO.1, and the sequence of a coded product CaceO is shown in SEQ ID NO.2. The CaceO can catalyze the hydrolysis of acetochlor to generate 2-chloro-N-(2-ethyl-6-methyl phenyl) acetamide, and can catalyze the hydrolysis of alachlor and butachlor to generate 2-chloro-N-(2,6-diethyl phenyl) acetamide. The CaceO can be constructed for degrading acetochlor, alachlor and butachlor to obtain transgenic crops which are capable of resisting the herbicides, eliminating acetochlor, alachlor and butachlor residues in soil and a water body, and for the biotransformation of chemical products, thus having quite important theoretical and application values.

The invention discloses a weeding composition, and particularly relates to a herbicide suitable for soybeans, and belongs to the technical field of herbicides. The weeding composition comprises the components in parts by weight: 0.5-5 parts of alachlor, 0.3-5 parts of metolachlor, 1-8 parts of prometryn, 2-7 parts of pendimethalin, 3-11 parts of MCPA, 5-14 parts of imazethapyr, 3-15 parts of fomesafen, 20-60 parts of a carrier and 7-10 parts of a surfactant. The weeding composition disclosed by the invention is specifically used for various weeds in soybeans, has a good removal effect and is short in residual life.

The invention provides a suckercide which comprises napropamide, metolachlor, red clover extract, eugenol, chavicol, cinnamyl aldehyde, l-menthone, alpha-cedrene, salicylic acid and 2-chloro-N,N,N-trimethylethanaminium chloride. The invention further provides application of the suckercide in Chinese tamarisk bonsai cultivation. The suckercide has the advantages that the suckercide is suspoemulsion and good in pourability, and the suspension rate of the effective constituents of the suckercide is 92.4-97.9%; particles capable of passing a sieve with meshes of 45 micrometers account for 98.6-99.5% of the suckercide; the lasting foam amount of the suckercide is 2-5mL after the suckercide stands for 1 minute; the suckercide is good in heat storage stability and low temperature stability; the suckercide is good in bud inhibiting effect when being applied to the Chinese tamarisk bonsai cultivation, and bud inhibiting rate reaches 94.6-99.7% one week after the suckercide is used.