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gan shu pai zhong qi yan fang bing hai
Author(s): 
Pages: 54-55
Year: Issue:  14
Journal: Farm Machinery

Keyword:  甘薯属排种草质藤本近地表褐色坏死斑发育不良糠心上生苗根粉状物;
Abstract: <正>甘薯属绕草质藤本,一年生或多年生蔓生草本。又名山芋、红芋、番薯、红薯、白薯、地瓜、红苕等,因地区不同而有不同的名称。甘薯排种期,也是病害茎线虫病、病毒病和黑斑病高发期,生产中要注意防病。1病害特征(1)茎线虫病:又名糠心病、空心病,发病薯苗在近地表处,外观变青,没有明显边缘和病斑,苗根部受害,在表皮上生有褐色晕斑,造成甘薯发育不良、矮小发黄。
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