To learn the toxicity and safety of the biological crop protective agent.
目的了解生物农药庄稼保护剂的毒性和安全性。
The protective cultivation, which is relative to traditional cultivation, is a new cultivation technique which combines with crop straw incorporated into field, no-tillage and reduced tillage.
保护性耕作是相对于传统耕作的一种新的耕作技术，是作物茎秆还田和免耕、少耕技术的结合。
Glyphosate is a nonselective herbicide, it can eradicate many weeds and safety for cane crop by using protective shield during spraying.
草甘膦是灭生性除草剂。使用时采用防护措施定向喷施，就能达到有选择地灭除杂草而对作物安全的目的。
Glyphosate is a nonselective herbicide, it can eradicate many weeds and safety for cane crop by using protective shield during spraying.
草甘膦是灭生性除草剂。使用时采用防护措施定向喷施，就能达到有选择地灭除杂草而对作物安全的目的。
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