鄂西产区重齿毛当归需肥规律与采收期研究  

Study on Fertilizer Requirement and Harvest Time of Angelica pubescens in Western Hubei Producing Area

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)

机构地区：[1]湖北省农业科学院中药材研究所/农业农村部中药材生物学与栽培重点实验室,湖北恩施445000 [2]恩施土家族苗族自治州农业农村局,湖北恩施445000 [3]九州天润中药产业有限公司,湖北武汉430040

出　　处：《安徽农业科学》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)。

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.

关 键 词：重齿毛当归 需肥规律 香豆素含量 采收期 

分 类 号：S567.2[农业科学—中草药栽培]