Effects of Different Wheat-cutting Dates on Predators and Cotton Seedling Aphids in Wheat-cotton Intercropping Field
MA Xiao-mu, GONG Hao, LIU Xiao-xia, LI Jian-cheng, ZHANG Qing-wen, MA Yong-an, CHEN Dong-mei, JIAO Hong-ye
ACTA AGRICULTURAE BOREALI-SINICA . 2007, (2): 156 -160 .  DOI: 10.3321/j.issn:1000-7091.2007.02.038