摘要
为探讨人参氮素营养规律,在基肥不同施氮量(0,10,20,30,40g/m2)条件下.采用(14)C示踪方法和化学分析方法,测定了人参对(14)CO2同化能力,NR活性,N、P、K营养的吸收,糖、蛋白N、非蛋白N以及人参皂甙的变化。结果表明,四龄参在基施氮肥10g/m2,(14)CO2同化能力,NR活力最高;基施氮肥30g/m2时吸K量下降;基施氮肥40g时吸N量、NPN(蛋白N)与PN(非蛋白N)、NPN/PN值下降,C/N值下降43%,总可溶糖、蔗糖下降,淀粉增加。五龄参时,基施氮肥40g/m2处理组还原糖增加60%左右,皂甙含量下降。
The results showed that ginseng of 4─yr─old,(14)CO2 assimilation ability, NR activity were the highest when N fertilizer as base fertilizer was 10g/m2the N absorption amount decreased when N fertilizer as base fertilizer was 30g/m2and when N fertilizer as base ferlizer was 40g/m2, N absorption amount, NPN and PN, NPN/PN decreased, C/N decreased 43%, total soluble sugar, sacrose sugar decreased, starch increased. For 5─yr─old ginseng, 40g N treatment group compared reducing sugar increased about 60% and the saponin content decreased.
出处
《吉林农业大学学报》
CAS
CSCD
1995年第2期63-67,共5页
Journal of Jilin Agricultural University
基金
国家自然科学基金
关键词
人参
氮肥
代谢
Ginseng
nitrogenous
base fertilizer
metabolism