标题:Evaluation of coated urea for ammonia volatilization loss,nitrogen mineraliztion and microsite pH in selected soil series 作者:Nasima junejo, Khanif.M.Y, Dharejo,K.A. ,Hazandy Abdul-Hamid and Arifin Abdu 来源:Afican Journal of Biotechnology Vol.11(2),pp.366-378,5,january,2012