However, many herbicides are losing their ability to kill weeds.
不过，许多除草剂正在丧失杀死杂草的能力。
Comparison on the Detoxification Effects of Safeners on Acetanilide Herbicides
安全剂对酰胺类除草剂解毒的效应比较
Influences of Single and Combined Herbicides on Soil Microbial Activity
除草剂单用与混用对土壤微生物活性的影响
Effects of Temperature and Humidity on the Toxicity of 3 Acyl Amino Herbicides
温湿度对3种酰胺类除草剂毒力的影响
Evaluation on toxicity， control effect and safety of several kinds of acyl amino herbicides
几种酰胺类除草剂毒力，药效及安全性评价
The recent 9 years'advance on research and development of herbicides was briefly reviewed.
简要介绍了近九年除草剂研究开发得新进展。
Poisons that generally affect only unwanted plants, or weeds, are called herbicides.
那些只抑制多余植物或杂草生长得药被称为除草剂。
In agriculture, inorganic fertilizers, herbicides and pesticides are often overused.
在农业方面，往往过度使用无机肥料、除莠剂和杀虫剂。
Figure1. Alcoholysis and hydrolysis of sulfonylurea herbicides.
图一硫醯尿素类除草剂之醇化与水解。
Applying Herbicides to Control Annual Herbs in Artificial Legume Grasslan d.
应用除草剂杀灭豆科人工草地一年生杂类草试验研究。
Herbicides are difficult to apply horizontally over long distances.
要在长段距离的水平方向施用除草剂也很困难。
Arsenic is widely associated with the manufature of herbicides and pesticides.
砷广泛地应用于除草剂和杀虫剂得制造中。
Resistance of weeds to certain herbicides is beginning toshow up.
杂草对某些除草剂得抗药性已显现出来。
Some ranchers control brush with herbicides.
有些牧场主用除草剂来控制灌木丛的蔓延。
Gaoming Jiang calls for sustainable farming to replace polluting plastics, chemical fertilisers and herbicides.
蒋高明呼吁以可持续性农耕替换农膜，肥，药和除草剂。
Toxic effluents, including pesticides and herbicides, seep into ground water or directly into irrigation canals.
有毒废水, 杀虫剂, 除草剂等渗入地下水或直接进入灌溉渠。
The test of two herbicides for controlling weeds in sugar cane field
两种除草剂防除蔗田杂草试验
Any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides.
一些有毒或致癌的碳氢化合物，除草剂中的杂质。
A study on the safety and injury of sulfonylureas herbicides to cereal crops
磺酰脲类除草剂对禾谷类作物的安全性及药害研究
Herbicides provide a cheaper and more effective means of controlling weeds than cultivation.
除草剂比清耕消除杂草成本低，效率高。
Phenylcarbamate herbicides were among the earliest herbicides developed.
氨基甲酸苯酯除莠剂是发展最早的一种除莠剂。
Experiment in the Control of Cleavers in Wheat Field with Herbicides
除草剂防除麦田猪殃殃试验
Efficacies of 8 herbicides in winter oilseed rape field were compared.
研究了8种除草剂防除冬油菜田杂草的效果。
Comparison on Weeding Effect of Several Kinds of Chemical Herbicides on Sweet Sorghum
几种化学除草剂对甜高粱除草效果的比较
Among the many regulatory substances in use we have controllable and selective herbicides.
在所有的许多调节物质中，有控制性的和选择性的除草剂。
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