化学除草 meaning in English

chemical weed control
chemical weed killing
chemical weeding

Efficacy of chemical herbicides on weeds in maize field
玉米田化学除草药效研究
Chemical controlling techniques for weed in spring lawn
草坪春季化学除草技术
Chemical weeding techniques of poplar seedling cultivation fields
杨树育苗地化学除草技术
Study of the weed situation in southern orchards and chemical weeding
南方果园草情调查及化学除草的研究
A study on high - yielding cultivation of flax in south area of china in winter
云南冬亚麻二次化学除草技术研究

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