摘要
[目的]为鄂西产区重齿毛当归科学施肥与适时采收提供理论依据。[方法]在重齿毛当归移栽后定期采样,研究氮、磷、钾元素与4种香豆素类化合物的积累规律。[结果]重齿毛当归群体的氮、磷元素积累量呈线性上升趋势,钾元素积累量在8月中旬达到峰值;生产100 kg重齿毛当归干燥根需要N、P_(2)O_(5)、K_(2)O分别为1.61、1.25、2.70 kg。二氢欧山芹醇含量在6月中旬达到最高,9月中旬后基本稳定;异欧前胡素含量在8月中旬达到最高,之后持续下降;二氢欧山芹醇当归酸脂含量在8月中旬之前波动较大,9月中旬之后缓慢提高;蛇床子素含量在7月达到最低,9月中旬以后含量持续提高,在12月中旬达到最高。除异欧前胡素外,其他3种香豆素积累量均随着时间的推移而不断升高,在12月中旬达到最高。[结论]重齿毛当归N∶P_(2)O_(5)∶K_(2)O供给比例以1.29∶1.00∶2.17为宜,6~10月为氮、磷吸收关键期,6~8月为钾吸收关键期,12月或之后采收为宜。
[Objective]It provides a theoretical basis for the scientific fertilization and timely harvesting of Angelica pubescens in western Hubei producing area.[Method]The accumulation of nitrogen,phosphorus,potassium and 4 coumarins was studied by regular sampling of Angelica pubescens after transplanting.[Result]The accumulation of nitrogen and phosphorus in Angelica pubescens population showed a linear upward trend.The potassium accumulation peaked in mid-August.The N,P_(2)O_(5)and K_(2)O required for 100 kg of Angelica pubescens dry root were 1.61,1.25,2.70 kg,respectively.The content of columbianetin reached the highest in mid-June and basically stabilized after mid-September.The content of isoimperatorin peaked in mid-August and continued to decline thereafter.The content of columbianadin fluctuated greatly before mid-August and increased slowly after mid-September.The content of osthole reached the lowest in July,increased continuously after mid-September,and reached the highest in mid-December.The accumulation of the other three coumarins increased with time and reached the highest in mid-December.[Conclusion]The ratio of N∶P_(2)O_(5)∶K_(2)O supply was 1.29∶1.00∶2.17.June to October was the critical period of nitrogen and phosphorus absorption,and June to August was the critical period of potassium absorption.Harvesting in December is preferable.
作者
黄浩
张雅娟
段媛媛
唐涛
王帆帆
吴卫刚
郭晓亮
HUANG Hao;ZHANG Ya-juan;DUAN Yuan-yuan(Institute of Chinese Herbal Medicines,Hubei Academy of Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine,Ministry of Agriculture and Rural Affairs,Enshi,Hubei 445000;Agricultural and Rural Bureau of Enshi Tujia and Miao Autonomous Prefecture,Enshi,Hubei 445000)
出处
《安徽农业科学》
CAS
2024年第10期172-174,共3页
Journal of Anhui Agricultural Sciences
基金
湖北省农业科技创新中心重大科技研发项目(2020-620-000-002-04)
国家现代农业产业技术体系建设专项(CARS-21)
湖北省科技重大项目(2021ACA004-01)。
关键词
重齿毛当归
需肥规律
香豆素含量
采收期
Angelica pubescens
Fertilizer requirement law
Coumarin content
Picking time
作者简介
黄浩(1996—),男,湖北恩施人,研究实习员,从事中药材栽培技术研究。;通信作者:郭晓亮,男,硕士,副研究员,从事中药材育种与栽培研究。
