The Study of Relationship Between Ecological Environment and Maize Enzyme Activity
LIU Shu-yun, DONG Shu-ting, HU Chang-hao
ACTA AGRICULTURAE BOREALI-SINICA . 2004, (4): 62 -65 .  DOI: 10.3321/j.issn:1000-7091.2004.04.017