查询词典 pesticides

Photodecomposition of pesticides is one of the most important degradation pathways occurring in natural environment and that has a direct impact on the efficiency and the degradation dynamics of pesticides.

鱼藤酮是一种极具应用前景的植物性杀虫剂，进行该杀虫剂在自然环境条件下的残留降解和光降解研究有着十分重要的意义。

Photooxidation was one of the main degradation approaches of pesticides in environment. Photo-stability had a direct influence on the effectiveness and persistent of pesticides. So the photooxidative degradation of triazophos in water was studied in this paper.

光氧化降解是农药施用后在环境中的主要降解途径，农药光稳定性对农药的药效持久性及在环境中的残留消失动态具有直接影响。

In pH value 6.40 Clark-Lubs buffer solution, the fluorescence intensity of safranine T and sodium dodecyl benzene sulfonatewas determined. After adding organophosphorus pesticides, the fluorescence intensity was determined. Based on this, a new fast and simple method for determination of the organophosphorus pesticides total-residues was developed.

方法］在pH值6.40的Clark-Lubs缓冲溶液中，加入碱性藏花红与一定浓度的十二烷基苯磺酸钠，测定荧光强度，再加入有机磷农药，检测荧光强度变化，据此建立测定有机磷农药残留总量的新方法。

Among the pesticides detected, sulfureous organophosphates had lower inhibitory ability, but phosphorothionate pesticides could be detected after direct oxidation with N-bromosuccinimide.

针对抑制能力差的硫代型有机磷农药，应用NBS进行氧化前处理，提高酶抑制的灵敏度。

In order to produce the synergist pesticides of coal-based acid, the objective of this study to investigate the interaction between coal-based acid and pesticides comprehensively and systematically.

本文以研究煤基酸增效型农药为重点，全面、系统地进行了煤基酸与农药相互作用的研究。工作主要包括以下几方面内容

Measuring the residues of organochlorine pesticides in tree sparrow by gas chromatography, we conclude that the measured parameter is mainly determined by the dose of organochlorine pesticides fertilizer using in agricultural area of Langfang.

4通过气相色谱法测定麻雀体内有机氯农药的残留水(来源：ABC51论10文网www.abclunwen.com)平，得出廊坊农区以往施用的有机氯农药的强度直接决定了现今麻雀体内的有机氯残留量。

We Investigated the species of diseases and insect pests, species of natural enemies, distribution and dominant species in export vegetable bases in Shandong Province. Dynamics of main diseases and insect pests were studied.2. We investigated the main control technologies for diseases and insect pests, types and application methods of pesticides.3. Effects of crop varieties, fertilities and cultivation on diseases and insect pests, production and pesticide residues were examined.4. Control effects and application technologies of frequency trembler grid lamps, greenhouse ozone machine and insect-proof net were tested.5. By research, seven biological preparations and twelve chemical pesticides with high activity, low toxicity and low residue were screened.

主要结果如下：1查清了山东省出口蔬菜基地蔬菜病虫害发生种类，天敌种类、分布、并评价上风种；探明了主要病虫发生消长规律。2查清了山东省出口蔬菜基地目前病虫害防治的主要应用技术、施药种类及主要施药方式。3明确了作物品种、肥力、栽培方式等农业措施对病虫发生、产量和农残的影响。4明确了频振式杀虫灯、温室病害臭氧防治机、防虫网等物理措施防治效果及其应用技术。5通过实验，筛选出7种生物制剂和12种安全有效低毒低残留化学农药品种。

While it is helpful to use preventive sod webworm control through Microbial pesticides, the problem is that many of these pesticides will not only kill the moths of sod webworms, they may also kill butterflies and even non-pest moths.

而这是有帮助的使用预防性超氧化物歧化酶webworm控制，通过微生物农药，问题是，许多这些农药，不但会杀死蛾类的超氧化物歧化酶webworms ，它们也可能杀死蝴蝶，甚至非蛾类害虫。

The crucial research method of its impacts on production is the measuration of pesticides' productivity, here also discusses the relationship between risk aversion and biological process and pesticides use.

其中对生产者影响研究方法的重点是对农药生产率的测定，同时讨论了规避风险和生物过程与农药使用的关系。

Determining Toxicity of Several Chemical Pesticides Against Olethreutes leucaspis in the Laboratory LI Rong-Xing, ZHONG Yi-Hai, CHEN Ze-Tan (Institute of Environment and Plant Protection, Chinese Academy of Tropical Agriculture Science, Hainan Province, Danzhou 571737, China) Abstract: Using a stomach poisoning method, the toxicity of five chemical pesticides to Olethreutes leucaspis Meyrick larvae was determined under laboratory conditions.

几种化学药剂对三角新小卷蛾的室内毒力测定李荣幸，钟义海，陈泽坦(中国热带农业科学院环境与植物保护研究所，海南儋州571737)摘要室内条件下采用胃毒法测定了5种化学药剂对三角新小卷蛾幼虫的毒力。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。