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herbicides
相关语句
  除草剂
     Study on Novel High Effect Herbicides with Substituted Phenyl Isoxazole and Substituted Phenyl Pyrazole Structure
     高效新农药取代苯基异噁唑和取代苯基吡唑类除草剂的研究
短句来源
     Oxidation of Herbicides 2,4-D by Ozone and Ozone Combined with Hydrogen Peroxide
     除草剂2,4-D的O_3、O_3/H_2O_2高级氧化技术研究
短句来源
     Study on the Biology, Ecology of Alligator Weed [Alternanthera Philoxeroides(Mart.)Griseb.] and Synergism and Mechanism of Herbicides
     空心莲子草[Alternanthera philoxeroides(Mart.)Griseb.]的生物学、生态学与复配除草剂的增效作用及作用机理研究
短句来源
     APPLICATION OF HERBICIDES IN CUTTING POPLARS
     除草剂在杨插育苗中的应用
短句来源
     SOYBEAN TOLERANCE TO HERBICIDES AND ITS INHERITANCE AND UTILIZATION
     大豆抗除草剂特性的遗传及其利用
短句来源
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  “herbicides”译为未确定词的双语例句
     Determination of herbicides atrazine and butachlor in soil by high performance liquid chromatography
     Determination of herbicides atrazine and butachlor in soil by high performance liquid chromatography
短句来源
     STUDIES ON THE EFFICACY OF CONTROLLED RELEASE FORMULATIONS OF HERBICIDES
     STUDIES ON THE EFFICACY OF CONTROLLED RELEASE FORMULATIONS OF HERBICIDES AGAINST WEEDS IN TRANSPLANT
短句来源
     After the models of soybean yield were analyzed, it was concluded that the two best dosage of herbicides combination were that: (1) fomesafen (381.0g a.i./hm2) + 2,4-D butyl (9.12g a.i./hm2) + brassinolide (0.012g a.i./hm2).
     通过对大豆产量模型进行优化分析,确定了两个用于大豆田的最佳配方:(1)氟磺胺草醚(381.0g a.i./hm~2)+2,4-D丁酯(9.12g a.i./hm~2)+油菜素内酯(0.012g a.i./hm~2)。
短句来源
     The Synthesis and Screening of the Herbicides of 1, 2, 4-Triazolo [1, 5-a] Pyrimidine-2-Sulfonylamides
     1,2,4-三唑[1,5-a]嘧啶-2-磺酰胺类除草剂的合成及筛选
短句来源
     Considering the herbicides effect and cost,the mixed herbicides of "propanil(2. 5 kg/hm2) + Quinclorac(150 g/hm2)" was recommended for the rice seedling field which had optimum controlling effect.
     综合考虑药效和成本,推荐在秧田期使用敌稗(2.5 kg/hm2)+快杀稗(150 g/hm2)的混剂处理,其防除效果理想.
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  相似匹配句对
     The herbicides, pendimet
     5、初步建立了以二甲戊乐灵为主要除草剂品种的大蒜田杂
短句来源
     Development of Herbicides in China
     从我国除草剂登记情况看中国除草剂发展现状
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  herbicides
2-C-methylerythritol phosphate pathway of isoprenoid biosynthesis as a target in identifying new antibiotics, herbicides, and im
      
MEP-pathway of isoprenoid biosynthesis is a promising target in identifying new herbicides, immunomodulators, and other physiologically active compounds.
      
This process was considerably stimulated by illumination and suppressed by the herbicides DCMU (an inhibitor of the electron transfer between quinones QA and QB in PS II) and methyl viologen (an electron acceptor from PS I).
      
Optimizing Separation Conditions for Chlorophenoxycarboxylic Acid Herbicides in Natural and Potable Water Using Capillary Zone E
      
Chlorophenoxycarboxylic acid herbicides were separated and determined by capillary electrophoresis.
      
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A series of trisubstituted thioureas have been made by the reaction of the primary aromatic amines, carbon disulfide, dimethylamine and a small amount of sodium hydroxide in a 95% ethanol solution. One of the products, 3-(p-chlorophenyl)-1,1-dimethylthiourea, has been tested in the laboratory and in the field as a good herbicide as CMU, 3-(p-chlorophenyl)-1,1-dimethylurea. In comparison with the latter, it takes longer periods for the killing, but is soluble in alcohol and some other common organic solvents.2-Nitro,...

A series of trisubstituted thioureas have been made by the reaction of the primary aromatic amines, carbon disulfide, dimethylamine and a small amount of sodium hydroxide in a 95% ethanol solution. One of the products, 3-(p-chlorophenyl)-1,1-dimethylthiourea, has been tested in the laboratory and in the field as a good herbicide as CMU, 3-(p-chlorophenyl)-1,1-dimethylurea. In comparison with the latter, it takes longer periods for the killing, but is soluble in alcohol and some other common organic solvents.2-Nitro, 2,4-dinitro-aniline, 2-aminophenol, and 2-aminopyridins do not react with carbon disulfide. This is probably due to the fact that the former three compounds may form chelates through the amino group and the 2-substituents so that no reaction can take place, while the last compound is anologous to an amide, so that one of the hydrogen atoms on the amino-nitrogen may tautomerise between the two nitrogen atoms.If the position next to the amino group is occupied by a bulky group, such as o-iodoaniline, the yield is considerably decreased. This is probably due to the "steric hindrance".

应用芳伯胺、二甲胺、二硫化碳及少量粉状氢氧化钠在乙醇溶液内反应,可制成多种三取代硫脲,其中3-(对氯苯基)-1,1-二甲基硫脲为优良的除莠剂,经试验证明其效力与3-(对氯苯基)-1,1-二甲基脲相仿,惟杀草所需时间要长些,但易溶于乙醇及其他价廉的有机溶剂. 2-硝基苯胺、2,4-二硝基苯胺、2-羟基苯胺及2-氨基吡啶与二硫化碳及二甲胺作用均得不到硫脲衍生物,可能是由于苯环上的硝基或羟基与邻位的胺基生成五环或六环内络合物.2-氨基吡啶的结构与酰胺相似,氨基上的氢原子可与环上的氮进行互变异构作用也不生成硫脲. 若在氨基邻位上有一较大的基团,则产率大受影响,这可能是由于“位阻”所致.

The replacement of the senescent lotus population is a problem in our seed-lotusproduction at present.Through experimental extermination of the undesirable popu-lation with herbicides,we have solved this problem basically.Lotus plant is fairly susceptible to herbicides of the phenyloxy-acetic acid group.A dosage of 75—125 g of the emulsifiable oil of 72% butyl 2,4—dichlorophenyloxy-acetate per mu (=1/15 hectare),applied to leaves and stalks with an atomizer,issufficient to bring about a through-going...

The replacement of the senescent lotus population is a problem in our seed-lotusproduction at present.Through experimental extermination of the undesirable popu-lation with herbicides,we have solved this problem basically.Lotus plant is fairly susceptible to herbicides of the phenyloxy-acetic acid group.A dosage of 75—125 g of the emulsifiable oil of 72% butyl 2,4—dichlorophenyloxy-acetate per mu (=1/15 hectare),applied to leaves and stalks with an atomizer,issufficient to bring about a through-going eradication of the population,includingthe underground rhizomes as well as the leafy shoots.Yet such treatment seems toleave no ill effect on fish and its food organisms.Season appropriate for applyingherbicide begins from the time when the plant develops to the stage of luxuriantvegetative growth,and ends at the stage of full blossom (prior to the formation ofnew rhizomes).The method is especially suitable for those farms which are short of man-powerbut where the area of senescent population (or of wild lotus) to be treated isextensive.

更新已衰退的子莲种群,是当前植莲生产上需要解决的一个问题。作者通过应用除莠剂消灭莲群的试验,基本上解决了这个问题。莲荷对苯氧乙酸类除莠剂相当敏感。每亩用0.15—0.25市斤的72%2,4-滴丁酯乳油作茎叶喷雾处理,就可彻底“灭荷绝藕”,且对鱼类及其食料生物无不良影响。从子莲进入营养生长盛期起,至盛花期(结藕前)止,均为施药适期。本法对劳力少,且需大面积彻底更新子莲种群或清除野莲的植莲单位,最为适用。

Some growth habits of a wild oat(Auenae sp.)in Chinghai provincewere studied and described.The damage caused by this weed was surveyedand evaluated and,therefore,a practicle control program had been workedout.Measures such as the deep burying of the herbicides(including Barbane,Avadax,Triallate,Suffix ect.)into the soil for preventing the loss from(?)heir volatility and the promotion of the growth of crop plants by frequentwatering etc.were considered to be essential for increasing the effectivenessof...

Some growth habits of a wild oat(Auenae sp.)in Chinghai provincewere studied and described.The damage caused by this weed was surveyedand evaluated and,therefore,a practicle control program had been workedout.Measures such as the deep burying of the herbicides(including Barbane,Avadax,Triallate,Suffix ect.)into the soil for preventing the loss from(?)heir volatility and the promotion of the growth of crop plants by frequentwatering etc.were considered to be essential for increasing the effectivenessof the herbicides and decreasing the costs of controlling the weed under thedrier and windy conditions in Chinghai province.

本文对青海高原农田野燕麦的发生特点,如出苗、生长发育、繁殖和传播、种籽抗逆性等进行了初步试验。为认识野燕麦的危害性和制定防除措施提供了依据。在化学除草方面,试验了十几种除草剂和不同的应用条件,初步认为“深埋药”、“狠抓水”、“防耗损”、“促生长”是保证药效的重要环节。对旱地除草剂的应用有一定参考意义。

 
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