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- Biological control had the highest ratio of profit to cost, and suggesting that this control measure is an optimal and recommendable measure in controlling A. artemisiifolia. 化学防治的综合效益和综合成本居中。豚草生物防治效益成本比最高，说明其是一种最为理想的防治措施，值得推广应用。
- Biological Control Measure in Upper Reach Regulation of Fen River 汾河上游河道治理中的生物防护措施
- Three control measures of Ambrosia artemisiifolia, including biological control, chemical control, and CK without any treatment, were evaluated by analytic hierarchy process (AHP). 摘要运用层次分析法对豚草生物防治、化学防治和不实施任何防治措施的空白对照进行综合评价。
- Biological Control of Rice Blast with Bacillus spp. 水稻稻瘟病拮抗细菌的筛选与防治初探。
- biological control measure 生物措施
- Passive control measure on structure vib. 结构被动控制措施。
- Biological control has been used in many parts of the world. 生物防治曾经在世界许多地方使用。
- Research Progress of the Biological Control for Lymantria dispar L. 舞毒蛾生物防治研究进展。
- Research on biological control and its applications. 数字化期刊。生物防治研究及其应用概况。
- The records provide a guide for timing control measure. 这些记录可作为适时采取防治措施的指南。
- Analysis for the Roles of Sediment and Runoff Cutting by Biological Control Measures in the Upper and Middle Yellow River Basin 黄河中游地区林草措施减洪减沙作用分析
- Biological control is an ecologically sound approach to pest suppression. 生物防治是一种生态学上的很好解决为害物的方法。
- At Topeka, Kansas, he sketched the outline of a crop control measure. 他在堪萨斯州的托皮卡勾画出农作物控制法的轮廓。
- This chapter is spent on three classic case of successful biological control. 本章着重于生物防治的三个成功的经典例子。
- In order to control the emergence,and reduce danger,biological behaviour and control measure ment to the greenhouse whitefly are discussed in this paper. 近年来温室白粉虱虫害大量发生,对蔬菜、花卉等造成很大危害。
- Biological Control of Cotton Verticillium Wilt by Avirulent Fusarium spp. 利用棉花体内非致病镰刀菌防治棉花黄萎病。
- Biological Control: Biological insecticide and Insect Growth Regulators. 生物防治:生物杀虫剂、昆虫生长调节剂。
- Air pollution control measures on track. 控制空气污染措施如期进行。
- The control measures proved to be effective. 这些管制措施成效显着。
- Weed Allelopathy ahd Its Utilization in Biological Control of Weeds. 杂草间的他感作用及其在杂草生防中的应用
