The effects of time of application of nitrogen on seed yield, efficiency of N fertilizer use and apparent N fertilizer recovery of Russian wildrye Psathyrostachys juncea (Fisch .)Nevski

摘要：

Availability of nitrogen (N) is considered to be a major determinant of grass seed yield.Nitrogen fertilizer application rate and the timing of its application are the two major concerns of research on the fertilizer‐N requirement of grass seed crops.No information is available regarding the effects of split‐nitrogen application on Russian Wildrye Psathy rostachys j uncea ( Fisch.)Nevskiseed production.Our objective was to determine the effect of rate and timing of N fertilizer application on Russian Wildrye seed yield and on the efficiency of nitrogen input.

关键词： Russian wildrye seed yield nitrogen fertilizer NUE ANR

作者: Jianguo Han Yunwen Wang Shengquan Jiang Bo Liu

作者单位: Department of Grassland Science,College of Animal Science and Technology,China Agricultural University,Beijing100094,China

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）