摘要
目的探究农田参对外源磷肥的需求规律,为配方施肥和专用肥研发奠定基础。方法以二年生和三年生人参苗为试验材料,采用过磷酸钙及无磷霍格兰德营养液(Hoagland溶液)为供试肥料,设置P_(2)O_(5)浓度分别为0 mmol·L^(-1)、0.5 mmol·L^(-1)、1.5 mmol·L^(-1)、3 mmol·L^(-1)、6 mmol·L^(-1)、8 mmol·L^(-1),监测不同浓度磷肥对人参农艺指标、光合特性以及对人参皂苷Rg_(1)、Rb_(1)、Re积累的影响。结果外施1.5-3.0 mmol·L^(-1)磷肥对二年生及三年生人参的株高、茎粗、根重、叶面积、叶绿素相对含量及叶片净光合速率、总皂苷含量均有显著的促进作用。其中二年生人参根重较无磷组提高16%,皂苷含量增加24%;三年生人参根重较无磷组可提高89%,皂苷含量可增加132%。P_(2)O_(5)适宜施用量分别为每株26.6 mg、53.3 mg。结论外施适宜浓度磷肥,可提升人参外部形态特征、改善光合生理特性并增加活性成分含量。
Objective To study the requirement of exogenous phosphorus for 2-year-old and 3-year-old ginseng seedings.Methods Two-and three-year-old ginsengs were used as experimental materials.Calcium superphosphate and phosphorus-free Hoagland solution were used as fertilizer,and the concentrations of P_(2)O_(5)were set to be 0 mmol·L^(-1),0.5 mmol·L^(-1),1.5 mmol·L^(-1),3 mmol·L^(-1),6 mmol·L^(-1),8 mmol·L^(-1),respectively.The effects of different concentrations of phosphorus fertilizer on agronomic indexes,photosynthetic characteristics and accumulation of ginsenosides Rg_(1),Rb_(1)and Re were studied.Results The plant height,stem diameter,root weight,leaf area,relative content of chlorophyll,net photosynthetic rate and total saponins content of different year-old panax ginseng were significantly increased by applying phosphorus at 1.5-3.0 mmol·L^(-1).Among them,compared with the phosphorus-free group,the root weight of second-year ginseng was increased by 16%and the saponin content was increased by 24%;the root weight of third-year ginseng was increased by 89%and the saponin content was increased by 132%.The appropriate application rate of phosphorus fertilizer(phosphorus pentoxide)during the growth of second and third year ginseng was 26.6 mg and 53.3 mg of plant,respectively.Conclusion External application of suitable concentration of phosphorus fertilizer can enhance the external morphological characteristics of ginseng,improve photosynthetic physiological properties and increase the content of active ingredients.
作者
陈莹莹
李洁
赵贵萍
张乃嘦
徐福荣
于大德
李西文
CHEN Yingying;LI Jie;ZHAO Guiping;ZHANG Naijiao;XU Furong;YU Dade;LI Xiwen(College of Traditional Chinese Medicine,Yunnan University of Chinese Medicine,Kunming 650500,China;Institute of Chinese Materia Medica,China Academy of Chinese Medical Sciences,Beijing100700,China;Tianjin Shengshi Baicao Pharmaceutical Co.,Ltd,Tianjin 300301,China)
出处
《世界科学技术-中医药现代化》
CSCD
北大核心
2024年第5期1213-1222,共10页
Modernization of Traditional Chinese Medicine and Materia Medica-World Science and Technology
基金
中国中医科学院科技创新工程项目(CI2021A04505):基于种质表观差异的人参活性成分分析,负责人:于大德
中央级公益性科研院所基本科研业务费专项资金(ZXKT21033):农田参需肥规律研究,负责人:于大德
国家科学技术部国家重点研发计划项目(2019YFC1710601):高品质道地药材种质优化及种源繁育,负责人:李西文
关键词
人参
磷肥
肥料
皂苷
产量
Panax ginseng
Phosphorus
Fertilizer
Content of ginsenoside
Yield
作者简介
通讯作者:李西文,研究员,博士研究生导师,主要研究方向:品质中药材栽培及育种研究
