Effects of Humic Acid Fertilizer on Urease Activity in Ginger Growing Soil and Nitrogen Absorption of Ginger
LI Zuo-mei;LIU Lan-lan;SHI Chun-yu*;CHEN Xiao-guang;ZHANG Chao;YAO Hai-lan
中国蔬菜 . 2009, (4): 44 -47 .