摘要
为探究黄土高原地区忍冬种植适宜的施肥配方,采用“3414”试验设计,以产量和指标性成分含量为指标筛选氮磷钾肥最佳配方。初步确定最佳施肥处理后,设置有机+氮磷钾肥组(OF+NPK)、单施有机肥组(OF)、单施氮磷钾肥组(NPK)和不施肥的对照组(CK)共4个处理,采集对应地块的土壤进行土壤理化性质和细菌丰度检测,并对土壤细菌丰度、理化性质以及金银花产量和品质进行Spearman相关性分析。结果表明,在“3414”试验中,N_(2)P_(2)K_(2)处理(施N:30 g/株,P_(2)O_(5):18 g/株,K_(2)O:14 g/株)单株产量最高,为229.26 g。肥料效应方程显示,N、P_(2)O_(5)、K_(2)O推荐施肥量分别为19.5~30.0、12.6~18.0、13.3~16.8 g/株,该施肥量下的单株产量为198.2~223.9 g。土壤微生态检测结果显示,有效磷、速效钾和有机质含量均以OF+NPK组最高,且显著高于CK组和NPK组,同时土壤中微生物群落丰度显著高于CK组。相关性分析发现,嗜热油菌纲、芽单胞菌纲和脱卤球菌纲为土壤中的主要有益菌,对金银花产量和指标成分含量可起到正向调控作用。本研究结果为黄土高原金银花新产区的施肥方法改善以及专用肥的开发提供了理论依据。
In order to explore the suitable fertilization formula of Lonicera japonica Flos in the Loess Plateau,the‘3414’experimental design was used.The optimum formula of nitrogen,phosphorus and potassium fertilizer was screened by yield and index component content.After the initial determination of the best fertilization treatment,four treatments were set up,that is,organic and NPK combined application group(OF+NPK),single application of organic fertilizer group(OF),single application of NPK fertilizer group(NPK)and no fertilization control group(CK)were collected for soil physico chemical properties and bacterial abundance detection.Spearman correlation analysis was performed on soil bacterial abundance and physicochemical properties,as well as L.japonica Flos yield and quality.The results showed that N_(2)P_(2)K_(2)treatment,apply N:30 g·plant^(-1),P_(2)O_(5):18 g·plant^(-1),K_(2)O:14 g·plant^(-1)could make the yield per plant up to 229.26 g.The fertilizer effect equation showed that the recommended fertilization amounts of N,P_(2)O_(5)and K_(2)O were 19.5~30.0,12.6~18.0 and 13.3~16.8 g·plant^(-1),respectively,and the yield per plant was 198.2~223.9 g.The results of soil microecology detection showed that the contents of available phosphorus,available potassium and organic matter in the group of OF+NPK were the highest,and significantly higher than those in CK and NPK.At the same time,the microbial community abundance in soil was significantly higher than CK group.Correlation analysis showed that Thermoleophilia,Gemmatimonadetes and Dehalococcoidia were the main beneficial bacteria in soil,which could positively regulate the yield and index component content of L.japonica Flos.The results of this study provide a theoretical basis for improvement of fertilization methods and development of special fertilizers in the new producing areas of L.japonica Flos in the Loess Plateau.
作者
郭然
刘瑞莹
黄厚钰
翟玉生
陈耀
李卫东
GUO Ran;LIU Ruiying;HUANG Houyu;ZHAI Yusheng;CHEN Yao;LI Weidong(School of Chinese Materia Medica,Beijing University of Chinese Medicine,Beijing 102488;Qing Liang Yuan Honeysuckle Industry Poverty Alleviation Development Co.Ltd.in Tongwei,Dingxi,Gansu 743300)
出处
《核农学报》
CAS
CSCD
北大核心
2023年第7期1452-1461,共10页
Journal of Nuclear Agricultural Sciences
基金
国家自然科学基金资助项目(31370360)
通渭县清凉沅金银花产业扶贫开发有限公司资助项目(2019110031007933)。
关键词
金银花
土壤细菌
黄土高原
产量
品质
Lonicera japonica Flos
soil bacteria
Loess Plateau
yield
quality
