摘要
对三年生桔梗营养生长期农艺性状和大量元素N、P、K的积累动态进行了研究,发现在长春地区桔梗生长旺盛时期为6~9月;桔梗植株体内含N、P量初期较高,中期有所下降但较为平缓,后期略有升高,含K量中期和后期较高,因此人工栽培桔梗需施足底肥,后期可少量追肥。
The agronomic characters of Platycodon grandflorum in nourishment growth period and its accumulation dynamics of major elements N,P and K have been studied for three years.The results indicate that in Changchun region, Platycodon grandflorum grew most prosperously between June and August.The contents of N and P in plants of Platycodon grandflorum were a little higher at first,gradually decreased at intermediate stage,and increased a little at later stage;the content of K was a little higher at intermediate ...
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2009年第1期62-64,共3页
Journal of Jilin Agricultural University
基金
吉林省中药现代化重点项目(20040901-02-06)
关键词
桔梗
吸肥规律
N
P
K
Platycodon grandiflorum
manure ingesting rule
N
P
K
