畜牧与饲料科学 ›› 2009, Vol. 30 ›› Issue (4): 37-37.doi: 10.12160/j.issn.1672-5190.2009.04.018
哈玲津[1] 王金娥[1] 王变银[2]
HA Ling-jin, WANG Jin-e, WANG Bian-yin(1.Laboratory of Agricultural Analysis, Tianjin Agrieuhural College, Tianjin 300384,China;2.Agronomie Department, Tianjin Agricultural College, Tianjin 300384, China)