查询词典 pesticide

Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.

主要从事叠氮化钠，叠氮化钡，五氮化三磷，异硫氰酸苯酯，1-苯基-5-巯基四氮唑，4-二甲氨基吡啶，2-巯基-5-甲基-1，3，4噻二唑，N-羟基邻苯二甲酰亚胺，无水甜菜碱及甜菜碱盐酸盐等精细化工原料及医药、农药中间体的开发、生产和销售。

For example , the synthesis of dialkyl alkylphosphonothionates pesticide and phytocidal herbicide Glufosinate.

本文重点开展了O，O-二乙基甲基亚膦酸酯及其中间体的合成研究和以O，O-二乙基甲基亚膦酸酯为中间体合成草铵膦的研究。

The study of the biological characteristics of resistant phytopathogenic fungi has great theoretic and practical significance for improving the strategy of chemical pesticide application, postponing the occurrence of the resistance and advancing the chemical prevention and control of diseases caused by phytopathogenic fungi.

研究植物病原真菌抗药菌的生物学特征以及它们的抗药机制对于改进化学农药使用策略，延缓抗药性的产生，推进植物病害的化学防治，具有十分重要的理论和实践意义。

Review on inheritance of pesticide resistance in phytophagous spider mites.

武予清，刘芹轩， 1994。植食叶螨抗药性遗传学研究的进展。

Matrine had broad-spectrum killing pesticide activity to acaridae, Pieris rapae L.

苦参碱具有广谱杀虫活性，对叶螨、菜青虫、蚜虫均具有活性。

New research on the virus enhance the Bt pesticide formulations to improve efficiency than Bt 15 to 20 percent, faster effect for 12 hours, killing spectrum from DBM, such as Pieris rapae mainly extended to rice stem borers, Spodoptera litura, beet armyworm, etc. Important pests, and declared a national invention patents.

研究的新型生物农药病毒增强Bt较Bt制剂增效15~20%，作用速度加快了12小时，杀虫谱由小菜蛾、菜青虫等为主扩展到水稻螟虫、斜纹夜蛾、甜菜夜蛾等重要害虫，并申报了国家发明专利。

Part of counties without paddy-field-fish-culture have a decreasing effectiveness of using pesticide and chemical fertilizer (such as PingLe, GongCheng, YangShuo, RongAn, GuiPing, HengXian), while they still obtain a lower annual average unit area yield than the counties with fish culture in.paddy fields.

部分非稻田养鱼县(如平乐、恭城、阳朔、融安、桂平、横县等)大量使用化肥农药的增产效率明显减少，其稻谷年均单产量仍普遍低于同区域的稻田养鱼县的稻谷年均单产量。

Since it was introduced and separated in the late 1980s, avermectin had become a major pesticide against Plutella xylostella in china.

我国自80年代末引进分离阿维菌素产素菌后，近几年来，该类杀虫剂产品已成为我国蔬菜生产上小菜蛾防治的主导药剂。

Plutella year as a result of rampant development was very short, algebra and more frequent pesticide use, fast development of resistance, chemical pest control has become a major problem.

由于小菜蛾常年猖獗，发育期短，代数多，农药使用频繁，抗药性发展极快，已成为该虫化学防治的一大难题。

The calculation methods of maximum residue limits of pesticide and the preharvest interval for plant are introduced also.

本文还介绍了农药在作物中最高残留限量与安全间隔期的计算方法。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。