Effect of Deep Loosening Mode on Soil Physical Characteristics and Maize Root Distribution
QI Hua, LIU Ming, ZHANG Wei-jian, ZHANG Zhen-ping, LI Xue-fei, SONG Zhen-wei, YU Ji-lin, WU Ya-nan
ACTA AGRICULTURAE BOREALI-SINICA . 2012, (4): 191 -196 .  DOI: 10.3969/j.issn.1000-7091.2012.04.037