收稿日期: 2009-10-19 接受日期: 2010-03-12 个人简介: Yanbo Huang, 博士, 农业工程师, 141 Experiment Station Road, USDA-ARS Crop Production Systems Research Unit, Stoneville, MS 38776, 电话: (662)686-5354, 电邮: yanbo.huang@ars.usda.gov; Steven J. Thomson, 博士, 农业工程师, 141 Experiment Station Road, USDA-ARS Crop Production Systems Research Unit, Stoneville, MS 38776, 电话: (662)686-5240, 电邮: steve.thomson@ars.usda.gov; Yubin Lan, 博士, 农业工程师, USDA-ARS-SPARC-APMRU,