Study on infestation, damage and eco-economic threshold of Leptochloa chinensis in direct-sowing rice fields
Chinese Rice Research Newsletter
ZHANG Songhan; GUAN Liqin; WANG Chuangbing; CHEN Jiansheng; HOU Quanmin
Shanghai Service Centre of Agri Technology Extension, Shanghai 201103; Shanghai Jiading Plant Protection and Quarantine Station, Shanghai 201800, China
