木质素作为尿素控释材料对小麦氮肥利用效果的研究
龚江, 刘春华, 石磊, 张新华,
Lignin Used as a Controlled-release Material of Urea in Nitrogen-utilized Effects for Wheat
GONG Jiang, LIU Chun-hua, SHI Lei, ZHANG Xin-hua
石河子大学学报 . 2007, (5): 534 -536 .