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Terpenoid compounds from aromatic plants have been found to inhibit asparagine synthetase. Chemically synthesized 1,4-cineole derivatives display a degree of weed control activity. 在芳香族植物中发现单萜化合物有抑制天冬酰胺合成酶的作用,化学合成1,4-桉树脑衍生物也有一定除草活性。
weed control activity 除草活性
Weed control and timing of treatment to avoid weed penalty. 杂草控制及适时处理，以防止其蔓延危害作物。
Ross D L,David C S,Giles D K.Precision weed control system for cotton. 陈勇.;自动施药机器人及可变量控制系统研究:[博士学位论文]
Mosquito control is the main outbreak control activity. 控制蚊虫是主要的疫情控制活动。
Sulfonylurea herbicide, a new type of compounds with high activity and low toxicity, was widely used for weed control in agronomic crops, such as rice, rapeseed, barley, wheat and maize. 磺酰脲类除草剂是一种高效、低毒的除草剂,广泛应用于水稻、油菜、大麦、小麦和玉米等农作物田间杂草的控制。
Burning of crop residues; minimum tillage and hand pulling for weed control(farmers' practice). 焚烧作物残体，少耕和人工除草（农民习惯措施）。
Field experiments in wheat were conducted to determine broadleaf weed control efficacy of tribenuron plus synergist. 摘要在田间条件下，用苯磺隆加增效剂对麦田阔叶杂草的除草效果进行了试验。
A landscape fabric may be used under the organic mulches to improve weed control. 阿景观织物可用于有机覆盖物下，以提高控制杂草。In general; black plastic is not recommended in soils that are poorly drained.;一般来说，黑色塑料，不建议将是排水不良的土壤。
The effect is obvious on weed control with black film mulched,the fresh weight of weed in field is reduced 70. 利用黑色地膜覆盖防草效果明显,田间杂草鲜重比与黑膜同材质的透明地膜覆盖减少70。
Transmission where the transmission medium does not recognize control characters or initiate any control activity. 传输媒介不需要了解控制字符或启动任何控制动作的一种传输方法。
The results showed that the total weed control effect of 10% ZJ0273 EC at the application rate of 75 mL/ha were over 85%. 结果表明,10%25丙酯草醚EC75mL/hm2对油菜阔叶杂草、禾本科杂草及总体防除效果都在85%25以上,具有杀草谱广、持效期长、防除效果好和成本较低等特点。
Capital control is always recognized by exercitation field as a financial control activity. 企业集团资金管理作为一项财务控制活动，一直为实务界所重视。
Integrating this technology with chemical weed control,the practice suited to mechanization,and saved energy with improved yield. 该技术与化学调控和化学除草技术相配套,适于机械化作业,达到节能高产的目的。
Make sure you get into the open a Web browser control activities! 进入前请确定您的浏览器有打开网页活动控件！
In the future more detailed knowledge of safener action is required to improve the effective use of safener in weed control. 由于目前广泛地使用保护剂，因此在考虑如何有效利用保护剂以提高除草剂之选择性方面，对于保护剂作用机制之了解相当重要。
When grass carp are introduced for weed control, they are often sterile in order to prevent them from overbreeding and then starving to death. 引进草鲤控制水草生长时，通常先得结扎，以防止过度繁殖而导致饥饿致死。
In these situations, adjust mowing, fertilizing, aeration, and weed control practices appropriately to the watering schedule. 在这种情况下，调整修剪，施肥，通风，以及杂草控制的做法恰当的浇水时间。
In addition, the selection of the apposite herbicide and effective weed control were quarantee of success in rice dry planting. 选用适当的除草剂并进行有效除草是水稻旱种成攻的保证。
If management considers this unsubstantiated control activity or monitor to be a “key control”, consider how you will test to ensure that the control is functioning as intended. 如果管理层认为这些没有书面证据的控制点或监控活动很重要，是关键控制，审计人员要考虑测试是否真的存在控制。