摘要
【目的】探究有机肥配施微生物菌剂对井冈蜜柚园土壤养分、土壤微生物及果实品质的影响,为井冈蜜柚的科学施肥提供依据。【方法】以井冈蜜柚品种之一的金兰柚为研究对象,设置对照(CK)、单施有机肥(T_(1))、有机肥+微生物菌剂(T_(2))及单施微生物菌剂(T_(3))4个处理,探究有机肥配施微生物菌剂对柚园土壤养分和果实品质的影响,并通过Biolog-ECO方法分析土壤微生物群落代谢多样性特征。【结果】与CK相比,T_(2)处理能提高土壤pH,改善土壤酸化情况;显著提高土壤全氮、有效磷、速效钾等养分,提升比例分别为13.87%、44.39%、12.54%。T_(2)处理后土壤微生物的代谢活性和土壤中细菌的数量增加,其对碳水化合物类、羧酸类、胺类等碳源利用强度增高,但对酚酸类碳源利用强度降低。T_(2)处理能显著提高土壤微生物群落中的物种优势度和群落结构的丰富度,但对微生物群落均匀度无显著影响。与CK相比,T_(1)、T_(2)、T_(3)处理均能提高果实品质,其中T_(2)处理对果实品质的提升效果最好。T_(2)处理能显著提高井冈蜜柚单果质量、可溶性固形物、VC和固酸比,较CK处理分别提高5.56%、12.14%、27.54%和36.39%。相关性分析显示,碳水化合物类等碳源利用强度与蜜柚可溶性糖、VC和固酸比等品质指标呈显著正相关关系。【结论】有机肥配施微生物菌剂能提高土壤pH,改善柚园土壤酸化情况;有效提高果园土壤微生物活性,增加土壤微生物对碳水化合物类、羧酸类和胺类等碳源的利用强度和微生物功能多样性,提升土壤肥力,进而改善井冈蜜柚的产量及果实品质。因此,有机肥配施微生物菌剂的施肥模式可在井冈蜜柚主产区进行推广。
[Objective]This study investigated the effects of organic fertilizer combined with a microbial agent on soil nutrients,soil microorganisms,and the quality of Jinggang pomelo,thus providing a basis for scientific fertilization of Jinggang pomelo.[Method]Jinlan Pomelo,one of the Jinggang pomelo varieties,was selected as the research object.Four treatments were set up,including control(CK),single application of organic fertilizer(T_(1)),organic fertilizer + microbial agent(T_(2)),and single application of microbial agent(T_3),to investigate the effects of organic fertilizer and microbial agent on soil nutrients and quality of Jinggang pomelo fruit.The metabolic diversity characteristics of soil microbial community were analyzed by Biolog-ECO method.[Result]Compared with CK,T_(2) treatment can increase soil pH,improve soil acidification,and significantly increased soil total nitrogen,available phosphorus,and available potassium content by 13.87%,44.39%,and 12.54%.After T_(2) treatment,the metabolic activity of soil microorganisms and the number of bacteria in soil increased,the utilization intensity of carbon sources such as carbohydrates,carboxylic acids and amines increased,but the utilization intensity of phenolic acids decreased.T_(2) treatment significantly increased the species dominance and community structure richness of soil microbial community,but it had no significant effect on the uniformity of microbial community.Compared with CK,T_(1),T_(2) and T_(3) treatments could improve fruit quality,and T_(2) treatment had the best effect on fruit quality.This treatment could significantly increase single fruit weight,soluble solid,VC and solid acid ratio of Jinggang pomelo by 5.56%,12.14%,27.54% and 36.39%,respectively,compared with CK treatment.Correlation analysis showed that quality indexes such as soluble sugar,VC content and solid acid ratio were significantly positively correlated with the utilization intensity of carbon sources such as carbohydrates.[Conclusion]The application of organic fertilizer combined with microbial agent could increase soil pH and improve soil acidification in pomelo orchard.It can effectively improve the activity of soil microorganisms in orchards,increase the utilization intensity and microbial functional diversity of carbon sources such as carbohydrates,carboxylic acids and amines by soil microorganisms,improve soil fertility,and then improve the yield and fruit quality of Jinggang pomelo.Therefore,the fertilization mode of organic fertilizer combined with microbial agent can be popularized in the main producing areas of Jinggang pomelo.
作者
侯松峰
袁杨
曾智鸿
韩荔宇
付圣男
陈洁
方熊
荣勤雷
倪国荣
谢凯柳
周春火
HOU Songfeng;YUAN Yang;ZENG Zhihong;HAN Liyu;FU Shengnan;CHEN Jie;FANG Xiong;RONG Qinlei;NI Guorong;XIE Kailiu;ZHOU Chunhuo(School of Land Resources and Environment,Jiangxi Agricultural University,Nanchang 330045,China;Jiangxi Jinggang Pomelo Science and Technology Courtyard,Ji’an,Jiangxi 343000,China;Zhongke Ecological Restoration(Jiangxi)Innovation Institute Co.,Ltd.,Nanchang 330000,China)
出处
《江西农业大学学报》
北大核心
2025年第1期74-84,276,共12页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金项目(32160751)。
关键词
井冈蜜柚
有机肥配施
微生物菌剂
微生物功能多样性
果实品质
Jinggang pomelo
application of organic fertilizer
microbial agent
microbial functional diversity
fruit quality
作者简介
侯松峰,硕士生,orcid.org/0009-0000-2770-8031,2942562140@qq.com;通信作者:谢凯柳,博士,主要从事植物营养研究,orcid.org/0000-0002-6887-7306,kailiuxie@jxau.edu.cn;通信作者:周春火,教授,博士,主要从事农业废弃物资源化利用研究,orcid.org/0000-0002-3049-9928,zchh3366@163.com。
