豫北露地直播棉田杂草的发生及其与棉花的竞争作用
马小艳, 马 艳, 奚建平, 姜伟丽, 马亚杰, 李希风
Mixed Weeds and Competition with Directly Seeded Cotton, North Henan Province, China
MA Xiao-Yan, MA Yan, XI Jian-Ping, JIANG Wei-Li, MA Ya-Jie, LI Xi-Feng
棉花学报
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2012, (1): 91
-96
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DOI: 10.11963/cs120112
