... pest mite 有害螨 pest of duck 鸭疫 pesticide activity 农药活性 ...
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Proper agronomic practices, duck raising in the paddy field and application of phyto pesticides prove to be effective in controlling pest, disease and weeds in the production of organic rice.
通过农艺措施，稻鸭共作和植物源药剂对有机水稻的病虫草害进行防治研究。
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