this paper, through the test and research of fluidic device for crop protection machinery, stated the functional relation between structural parameters, working flow and suction, and puts forward the rules for fluidic device design for crop protection machinery.

although the use of pheromones for insect pest management has attracted much more attention than plant volatiles, it should be emphasized that the first efforts to apply semiochemicals for crop protection were made with natural plant volatile.

尽管目前在害虫综合治理中，昆虫信息素的应用越来越显得比天然植物气味源更受重视，但是必须指出的是，昆虫信息化合物首次成功地使用于植物保护的却是天然植物气味源。

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the hydraulic pressure atomization is the main means of application of pesticide product at present. spray nozzle is the key part of the crop protection mechanism in the process of atomization, whose performance decides the pesticide product efficiency.

大部分农药的施用，以药液雾化喷洒方式为主，喷头是植保机械中实现液体雾化的关键部件，喷头性能的优劣，直接关系着农药有效利用率的高低。

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this article reviews some aspects of the microbiology of bacillus thuringiensis, the use of bt agents in pests control and the use of bt cry genes in bioengineered crop protection.

本文将从Bt微生物学、Bt制剂在害虫防治中以及Bt cry基因在转基因抗虫植物中的应用等方面作一综述。

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the mini-tillage machine of paddy field is used as the power to drive the tillage, transplanting, cutting and heaping, water pump, crop protection and threshing machines.

两个小动力各有特点，水田耕整机能完成耕整、栽插和收割分堆作业，其动力还可带动水泵，植保和脱粒机作业；

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this article studies the influence of different storage temperature and time upon seed germination percentage after the corn and wheat seeds are coated with seed coating agent for crop protection in common storage condition.

在常规库存条件下，以玉米、小麦种子及植保型种衣剂为材料，研究了种子包衣后，不同贮藏温度及贮藏时间对其发芽率的影响。

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in the 21st century, agrochemicals are still the main body of the crop protection. green agrochemicals are needed to harmonize the relationship between pesticide and environment.

化学农药仍是21世纪作物保护的主体，协调农药与环境关系的方法是发展绿色化的农药品种。

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in order to safeguard the production of food at affordable prices, it is essential to provide farmers with access to sufficient diversity of crop protection solutions, they said.

为了将粮食产量保持在可承受的价格水平，向农民提供足够多样的农作物保护解决方案很重要。

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it mentioned its contribution to china's crop protection sector, leadership in chemical material supply to national aerospace projects and its championing the speciality chemical industry.

惠誉提到了中国化工对中国作物保护领域的贡献，是国家航空航天项目的主要化工原料供应商，而且是特种化工行业的领军者。

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combining the situation of our country and referring to developed country level, brings forward studying stress and development trend of crop protection equipment for the future.

阐述了我国植保机械的发展过程、生产及使用现状，结合我国国情并参照国外先进水平，提出了我国植保机械今后的研究重点和发展方向。

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this is essential to prevent or delay the development of resistant pests and to maintain the efficacy of remaining crop protection products.

他们认为：这对于阻止或者延迟害虫抵抗力的增强、维持其它农作物保护产品的功效很重要。

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the company is a world leader in crop protection and ranks the third in the high-value commercial seeds market.

先正达在全球植保领域名列前茅，并在高价值商业种子领域排名第三。

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managerial and supervisory levels in crop protection extension and research, regulatory functions; senior staff of chemical industries;

植物保护推广和调查领域的管理和监督水平，功能的调整，化学工业的高级人员；

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developments and prospects of crop protection biotechnology

作物保护生物技术的发展与展望

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agriculture insurance and sustainable crop protection

农业保险与可持续植保

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droplets size is an important index for estimating the performance of equipment for crop protection.

雾滴的尺寸参数是评价植保机械性能的最主要质量指标。

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this paper presents the study on testing system for the performance of hydraulic pumps for crop protection equipment.

介绍了一种自动化水平、测试精度和测试效率都很高，而且非常实用的植保机械液泵性能测试系统。

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an approach to the fluidic device for crop protection machinery

植保机械用射流装置的研究

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genetic engineering application in crop protection

基因工程在作物保护中的应用

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a complete new mechanism of crop protection chemicals

化学农药的全新机制

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research on measurement for atomization performance of crop protection machinery based on image processing

植保机械雾化性能的图像检测方法研究

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