摘要
应用１５Ｎ示踪法探讨了春小麦对有机氮的吸收利用问题。结果表明：单施秸秆时，Ｃ／Ｎ值低者优于高者；秸秆与尿素混施比单施秸秆能提高氮素吸收利用率，增产效果显著。
The study on absorption and utilization of organic nitrogen on spring wheat has been done by 15N trace method The.Results show that haulm with lower C/N value is superior to that with higher C/N value when haulm is employed individually.Mixed application of haulm and urea can improve absorption and utilization rate of nitrogen and increase yield significantly.Mixed applicati on of urea and haulm with lower C/N value canachieve best result.
出处
《宁夏农林科技》
1994年第2期14-16,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
关键词
春小麦
吸收利用率
有机氮
Spring wheat
￣15N trace method
Absorption and utilizationrate
Organic nitrogen
Inorganic nitrogen
