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new herbicides
相关语句
  新除草剂
     Trial Demonstration on New Herbicides Applied to Control weeds in Rape Field Haomen Farm
     油菜田新除草剂在浩门农场的试验示范
短句来源
     Trials to minimize the carry over of Chlortoluron,requirements forscreening new herbicides to control weeds in winter crops under multiplecropping system,and precautions against injury caused by herbicidesunder extremely unfavorable climatic conditions are discussed.
     本文对防止二次药害的途径,多熟制条件下筛选麦田新除草剂的要求,使用时注意防止不利气候条件下可能出现的药害进行了讨论。
短句来源
     Screening for the herbicidal activities of compounds is the first and most important step in developing new herbicides.
     化合物的除草活性筛选是开发新除草剂的最初和最重要的阶段。
短句来源
     The combination of herbicide metabolism with novel herbicide creation provides new ideals for designing lead compounds, which is helpful for accelerating the process of exploiting new herbicides and enhancing the probability of new herbicide creation.
     除草剂代谢研究与创制新除草剂的前期研究相结合,为新除草剂设计提供了新的思路,可加速新除草剂的开发进程,提高了新除草剂研制的命中率.
短句来源
  “new herbicides”译为未确定词的双语例句
     Advance in Research of New Herbicides
     新颖除草剂研究进展
短句来源
     Controlling Effects of Two New Herbicides on Malignant Weeds in Wheat Field
     两种新型除草剂对麦田恶性杂草防除效果
短句来源
     The results analysis of new herbicides space filtration on Bailang county
     白朗县新型除草剂筛选结果初析——西藏种植业成果转化子项目
短句来源
     This paper discussed the new target HPPD for herbicide development and the application of some new herbicides that had been developed through this way,including sulctrione,mesotrione and isoxaflutole.
     本文概述了作为开发除草剂的新靶标 -HPPD (对 -羟苯基丙酮酸双氧化酶 )的基本特征、作用机制及已经开发成功的新品种及其使用技术
短句来源
     In the review, we describe the characteristics and the direction of developmen of new herbicides.
     综述了新型除草剂研制的方向、重点和特点。
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  相似匹配句对
     ,and new(?)
     ,new(?)
短句来源
     NEW
     新品撷英
短句来源
     Advance in Research of New Herbicides
     新颖除草剂研究进展
短句来源
     Synthesis and herbicidal activities of new oxyacetamide herbicides
     新型氧乙酰胺类除草剂的合成与生物活性研究
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  new herbicides
Embryolethality of new herbicides is not detected by the micromass teratogen tests
      
MEP-pathway of isoprenoid biosynthesis is a promising target in identifying new herbicides, immunomodulators, and other physiologically active compounds.
      
The following list of herbicides is certainly not all inclusive as new herbicides are consistently being introduced.
      
The cabbage industry in NY has a critical need for registrations of new herbicides for effective and economical weed control in this important crop.
      
Studies on various new herbicides found that improved weed control could be achieved, often with significant savings.
      
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“Modown”is the trade name of a new herbicide,first maun factured by theMobile Oil Corporation of America in 1973.Chemical name:methy 1—5—(2,4—dichrorophenoxy)—2—nitrobenzoate.Structural formula:(?)This thesis affords in detail a laboratory method for synthesis of the abovecompound.The method includes Chlornation of benzoyl chloride,purification ofmetachlorobenzoyl chloride by fractional distillation,esterification to isopropylester,nitration,condensation with 2,4—dichlorophenol,and subsequent ester—exchange...

“Modown”is the trade name of a new herbicide,first maun factured by theMobile Oil Corporation of America in 1973.Chemical name:methy 1—5—(2,4—dichrorophenoxy)—2—nitrobenzoate.Structural formula:(?)This thesis affords in detail a laboratory method for synthesis of the abovecompound.The method includes Chlornation of benzoyl chloride,purification ofmetachlorobenzoyl chloride by fractional distillation,esterification to isopropylester,nitration,condensation with 2,4—dichlorophenol,and subsequent ester—exchange to methyl ester.The total yield is 59%,based on meta-chloro-benzoyl-chloride.The purity of“Modown”is 99.8%.The herbicide is specific forbroadleaves grasses.

“茅毒”是一种新除草剂的商品名,首由美国 Mobilc Oil Corp.在1973年合成,其化学名称为5—(2,4—二氯苯氧基)—2—硝基苯甲酸甲酯,化学结构式如下:(?)本文提出了合成此化合物的实验室方法的细节。方法包括了苯甲酰氯的氯化,用分馏法精制间氯苯甲酰氯,它的异丙酯化,硝化及同2.4—二氯苯酚的缩合,最后经过酯交换成为产品,总收率为59%(按间氯苯甲酰氯计),台“茅毒”纯度为99.8%。“茅毒”对杀除阔叶草有特效。

In this paper, the mass spectra of a new herbicide, Isoproturon, and itsortho isomer have been reported. The fragmentation mechanism bas been stu-died by means of high resolution mass spectrometry and metastable ion link-scanning technique, and interpreted with "ortho effect".

本文报道了用高分辨质谱计和亚稳扫描技术研究新除草剂异丙隆及其邻位异构体,还给出异丙隆的裂解途径,利用“邻位效应”解释邻、对位两种异构体谱图的差异,为鉴别提供依据。

The acute toxicity of a new herbicide butachlor was studied on SD rats and C_4 I mice. The concentration of emulsions of butachlor was diluted with water and given to the animals per os. The medium lethal doses were estimated as 1514 (1208~1897) mg/kg for female rats and 1685 (1259~1995) mg/kg for male respectively, whereas 1153 (864~1539) mg/kg for female mice and 1143(841~1553) mg/kg for male respectively. The lethal dose per cutaneous for rats was higher than 3120 mg/kg. From these results it may be...

The acute toxicity of a new herbicide butachlor was studied on SD rats and C_4 I mice. The concentration of emulsions of butachlor was diluted with water and given to the animals per os. The medium lethal doses were estimated as 1514 (1208~1897) mg/kg for female rats and 1685 (1259~1995) mg/kg for male respectively, whereas 1153 (864~1539) mg/kg for female mice and 1143(841~1553) mg/kg for male respectively. The lethal dose per cutaneous for rats was higher than 3120 mg/kg. From these results it may be suggested that butachlor is one of the herbicides with rather low toxicity.

60.12%丁草胺乳剂对大鼠经口LD_(50):雌鼠为1514(1208~1897)mg/kg,雄鼠1585(1259~1995)mg/kg;对小鼠经口LD_(50):雌鼠为1153(864~1539)mg/kg,雄鼠为1143(841~1553)mg/kg。表明丁草胺的经口急性毒性在大小鼠和雌雄鼠之间无明显的种属或性别差异。对大鼠的经皮LD_(50)>3210mg/kg。按“农药急性毒性分级标准”,属低毒类农药。

 
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