鲁北棉田应用生物有机肥效果研究
张乐森
Study on the Application Effect of Bio-organic Fertilizer on Cotton Planting Field in North Shandong
ZHANG Le-Sen
中国棉花 . 2011, (9): 28 -29 .  DOI: 10.11963/issn.1000-632X.20110907