The analysis of conservation tillage in China----conservation tillage and crop yield: reviewing the evidence
谢瑞芝,李少昆,李小君,金亚征,王克如,初震东,高世菊
Scientia Agricultura Sinica . 2007, (9): 1914 -1924 .  DOI: 10.3864/j.issn.0578-1752.at-2006-8060