文献类型：期刊文献

中文题名：密度与肥量耦合对陇药党参产量与根部关联因子的效应研究

英文题名：A Study on the Effects of Coupling Plant Density and Fertilizer Application Rate on Yield and Root-related Traits of Longyao Codonopsis pilosula

作者：何春雨[1,2,3];张建旭[1,2,3];张延红[1,2,3];郭清毅[1,2,3];申三保[4];夏建红[5]

第一作者：何春雨

机构：[1]甘肃中医药大学药学院,甘肃兰州730000;[2]天然药用种质资源挖掘与新品种选育协同创新中心,甘肃兰州730000;[3]甘肃中医药大学杏林百草园,甘肃兰州730000;[4]甘肃清水县农业技术推广中心,甘肃天水741400;[5]甘肃陇西县农业技术推广中心,甘肃定西748100

第一机构：甘肃中医药大学药学院（西北中藏药协同创新中心办公室）

年份：2026

卷号：54

期号：1

起止页码：166

中文期刊名：安徽农业科学

外文期刊名：Journal of Anhui Agricultural Sciences

基金：国家自然科学基金项目(81960683);甘肃省高等学校产业支撑计划项目(2024CYZC-40/2020C-09);甘肃省民生科技专项(20CX9NA070);中央引导地方科技发展专项资金项目(2025ZY036/YDZX20206200002673);引进人才科研启动基金项目(2019YJRC-06);甘肃省科技计划项目(24YANA007/23YFFA0027/24CXKA009);高校产业支撑计划项目(2024CYZC-40/2020C-09);甘肃中医药大学科学研究与创新基金项目(2023KCZD)。

语种：中文

中文关键词：陇药党参;栽植密度;化肥用量;产量效应;根部因子

外文关键词：Longyao Codonopsis pilosula;Planting density;Fertilizer application rate;Yield performance;Root traits

摘要：[目的]针对陇药党参由于过度密植与超量施用化学肥料导致的问题,以栽植密度和化学肥料施用量耦合效应对产量与病害的影响为研究点,探索适合党参高质量、高效率生产的适宜比例。[方法]采用栽植密度(A)和化肥施用量(B)二因素完全随机区组设计,其中栽植密度处理为60、75、90、105万株/hm^(2)(A_(1)、A_(2)、A_(3)、A_(4)),化肥施用量处理为0、120、240、360 kg/hm^(2)(B_(1)、B_(2)、B_(3)、B_(4)),研究栽植密度和化学肥料施用量耦合效应对产量的影响。[结果]密度与施肥量耦合效应下,单根重超过13 g的组合有4个,根重最大的是A_(1)B_(3)处理(14.88 g);感病率最高的组合是A_(4)B_(3)处理(2.86%),比CK高1.62倍,最低的是A_(1)B_(1)处理(1.09%);成苗率最高的是A_(1)B_(4)处理(71.5%);产量最高的组合是A_(4)B_(3)处理(7556.87 kg/hm^(2));耦合效应确实可以决定最高产量、最佳密度及施肥量配比组合;在雨养农业区域其大田最优的栽植密度建议为105万株/hm^(2),总化学施肥量宜控制在240 kg/hm^(2),这样可以达到提高产量的同时,解决由于密植与过度施用肥料导致的病害发生率较高的问题。[结论]建立在良法良种配套基础上的陇药党参种植,能够达到高质量、高效益的目的。
[Objective]Addressing the challenges associated with excessive planting density and overuse of chemical fertilizers in Longyao Codonopsis pilosula cultivation,the coupling effects of planting density and fertilizer application rate on yield and disease incidence were investigated,aiming to identify optimal combinations conducive to high-quality and efficient production.[Method]A two-factor completely randomized block design was employed,with planting density(A)and chemical fertilizer application rate(B)as experimental factors.Planting density treatments were set at 600000,750000,900000,and 1050000 plants/hm^(2)(A_(1),A_(2),A_(3),and A_(4)),while fertilizer application rates were 0,120,240,and 360 kg/hm^(2)(B_(1),B_(2),B_(3),and B_(4)).The interactive effects of these factors on yield and related agronomic traits were systematically evaluated.[Result]Under combined density and fertilizer treatments,four combinations individual root weights exceeded 13 g.The highest single root weight(14.88 g)was observed at A_(1)B_(3)treatment.The highest disease incidence(2.86%)occurred at A_(4)B_(3)treatment,representing a 162%increase compared to the control(CK),whereas the lowest incidence(1.09%)was recorded in A_(1)B_(1),treatment.The highest seedling survival rate(71.5%)was achieved at A_(1)B_(4)treatment.Maximum yield(7556.87 kg/hm^(2))was obtained at A_(4)B_(3)treatment.These results demonstrate that the coupling of planting density and fertilizer input significantly influences yield performance,enabling the identification of optimal density-fertilizer combinations.In rain-fed agricultural regions,a planting density of 1050000 plants/hm^(2)coupled with a fertilizer application rate of 240 kg/hm^(2)is recommended,as it enhances yield while mitigating the elevated disease risks associated with dense planting and excessive fertilization.[Conclusion]High-quality and high-efficiency cultivation of Longyao Codonopsis pilosula can be achieved through the integration of optimized agronomic practices and superior seed quality.