%0 Journal Article
%T Evaluation of In-Season Nitrogen Management for Summer Maize in North Central China
%A S.-C. Zhao
%A P. He
%A Z.-M. Sha
%A S.-L. Xing
%J ISRN Agronomy
%D 2012
%I Hindawi Publishing Corporation
%R 10.5402/2012/294514
%U http://dx.doi.org/10.5402/2012/294514