摘要
利用15N标记尿素对不同生育期参株氮素营养和床土中氮素营养进行了研究。试验结果表明,人参对15N标记肥料吸收较少,第1年利用率为985%,2年累积利用率为1906%;标记肥料氮回收率较高,第1年为8159%,第2年为6978%;氮素肥料损失,第1年为1841%,2年共损失3022%。
The experiment results showed that the nitrogen fertilized utilization rate was 985% in the lst year, the accumulative utilization rate was 1906% in two years The 15N nitrogen fertilizer recovery rate was 8158% and 6978% in the 1st year and 2nd year, respectively The 15N nitrogen fertilizer loss rate was 1841% in the 1st year and the accumulative loss rate was 3022% in two years
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
1997年第3期55-59,共5页
Journal of Jilin Agricultural University
基金
吉林省科委资助
关键词
人参
肥料
氮素
吸收
15N
tracer
ginseng
nitrigen balance