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.

1、

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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18、

this study can have a capital importance in crop protection.

这项研究在庄稼保护方面是至关重要。

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studies on sustainable crop protection and its comprehensive evaluation

可持续植物保护及其综合评价

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he also rejects theories that the lab had accidentally released a coronavirus it had harvested from bats for research purposes, saying their biosecurity procedures are strictly enforced.

他还否认了有关实验室意外泄露从蝙蝠身上采集的冠状病毒的阴谋论，称该实验室严格执行生物安全程序。

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