摘要
为探究氮磷钾(NPK)肥配施对灯盏花产量和品质的影响及肥料效应,推荐灯盏花NKP肥最佳配比及施用量,本研究采用"3414"设计进行田间小区试验,测定灯盏花产量和主要提取成分野黄芩苷、总黄酮和总咖啡酸酯含量,并计算主要提取成分单位面积收获量,通过肥料效应函数方程拟合NPK施肥量。结果表明,合理施肥可显著提高灯盏花产量,同时氮磷钾肥对产量的影响有互作效应,互作效应大小依次为NPK>NP>NK>PK。氮磷肥互作表现为协同促进作用,而当施钾量处于低中水平时,氮钾肥间和磷钾肥间有协同促进作用。合理施肥可提高灯盏花主要提取成分单位面积收获量,减施或不施N肥,施用中等水平的磷肥和钾肥有利于提高灯盏花品质。综上,通过建立肥料效应函数,获得该地区最佳产量推荐施肥量为N 151.4 kg·hm^(-2)、P_2O_5120.7 kg·hm^(-2)、K_2O 71.0 kg·hm^(-2),产量为13 807.2 kg·hm^(-2);获得最高单位面积野黄芩苷收获量(310.7 kg·hm^(-2))的施肥量为N 120.0 kg·hm^(-2)、P_2O_592.1 kg·hm^(-2)、K_2O 113.6 kg·hm^(-2)。本研究结果为指导和规范灯盏花施肥技术提供了理论依据。
Effect of N,P and K on yield,quality of Erigeron breviscapus and fertilization effect were researched to recommend optimum fertilizer proportion and application amount.Through field plot experiments with‘3414’experiment plan,yield,contents and outputs per unit area of three main extracts(scutellarin,total flavonoid,total caffeate)of Erigeron breviscapus were measured and calculated,and application amount of N,P and K were simulated consequently using fertilizer effect function equation.The results showed that proper fertilization significantly increased yield,effect of N,P and K on yield of Erigeron breviscapus was interactive with order of NPK>NP>NK>PK.The interaction of N and P fertilizer was synergistic,while synergistic effect between N and P,P and K fertilizer was observed under a low amount of K application.Rational fertilization increased yield per unit area of the main components of Erigeron breviscapus.Reducing or not applying N fertilizer and applying medium level P and K were beneficial to improve quality of Erigeron breviscapus.The recommended application amounts on the optimal yield(13 807.2 kg·hm-2)were N of 151.4 kg·hm-2,P2O5of 120.7 kg·hm-2and K2O of 71.0 kg·hm-2according to fertilizer effect function equation.Meanwhile,the recommended application amounts on the highest output per unit area of scutellarin(310.7 kg·hm-2)were N of120.0 kg·hm-2,P2O5of 92.1 kg·hm-2and K2O of 113.6 kg·hm-2.The results of this study provided theoretical basis to guide and standardize fertilization technique of Erigeron breviscapus.
作者
鲁泽刚
卢迎春
张广辉
龙光强
杨生超
LU Zegang;LU Yingchun;ZHANG Guanghui;LONG Guangqiang;YANG Shengchao(College of Resource and Environmental Science,Yunnan Agricultural University,Kunming,Yunnan 650201;National & Local Joint Engineering Research Center on Gemplasm Utilization & Innovation of Chinese Medicinal Materials in Southwest China,Yunnan Agricultural University,Kunming,Yunnan 650201)
出处
《核农学报》
CAS
CSCD
北大核心
2019年第3期616-622,共7页
Journal of Nuclear Agricultural Sciences
基金
国家中药标准化项目"注射用灯盏花素标准化建设"(ZYBZH-C-YN-59)
云南省重大科技专项"灯盏花产业链关键技术开发及产业化应用"(2017ZF002)
云南省中青年学术技术带头人后备人才项目(2017HB027)
中医药行业科研专项"中药饮片质量保障系统研究(一)(201507002)
关键词
灯盏花
“3414”肥料试验
产量
互作效应
提取物收获量
Erigeron breviscapus
‘3414 ’ fertilizer experiment
yield
interaction effect
output per unit area of extracts
