Winter wheat grain yield associated with precipitation distribution under long-term nitrogen fertilization in the semiarid Loess Plateau in China

Autor: Guo, Shengli, Zhu, Hanhua, Dang, Tinghui, Wu, Jinshui, Liu, Wenzhao, Hao, Mingde, Li, Yong, Syers, J. Keith
Zdroj: In Geoderma November 2012 189-190:442-450
Databáze: ScienceDirect