湖北农业科学 ›› 2024, Vol. 63 ›› Issue (4): 24-29.doi: 10.14088/j.cnki.issn0439-8114.2024.04.005

• 资源·环境 • 上一篇    下一篇

生物菌肥下小麦苗期生长及土壤微生物的特征

孙萌1a, 宁松瑞2, 颜安1a, 杨利1a, 卢前成1a, 左筱筱1a, 李靖言1b, 范君1a   

  1. 1.新疆农业大学,a.资源与环境学院;b. 计算机与信息工程学院,乌鲁木齐 830052;
    2.西安理工大学/省部共建西北旱区生态水利国家重点实验室,西安 710048
  • 收稿日期:2022-12-23 出版日期:2024-04-25 发布日期:2024-05-07
  • 通讯作者: 颜安(1983-),男,四川资阳人,教授,博士,主要从事农业资源与环境研究,(电子信箱)yanan@xjau.edu.cn。
  • 作者简介:孙萌(1996-),女,河南信阳人,在读硕士研究生,研究方向为土壤学,(电话)15194451057(电子信箱)a850830920@qq.com。
  • 基金资助:
    新疆维吾尔自治区重点研发任务专项计划项目(2022B02003)

The characteristics of wheat seeding growth and soil microorganisms under biological bacterial fertilizer

SUN Meng1a, NING Song-rui2, YAN An1a, YANG Li1a, LU Qian-cheng1a, ZUO Xiao-xiao1a, LI Jing-yan1b, FAN Jun1a   

  1. 1a. College of Resources and Environment; 1b. College of Computer and Information Engineering, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xi'an University of Technology/State Key Laboratory of Eco-hydraulus in Northwest Arid Area Jointly Built by Xi'an Region of China, Xi'an 710048, China
  • Received:2022-12-23 Online:2024-04-25 Published:2024-05-07

摘要: 为了探究不同生物菌肥对小麦生长、土壤肥力及微生物数量的影响,采用盆栽试验,以小麦(Triticum aestivum L.)为试验对象,不施肥为对照(CK),设置水溶性盐碱地复合菌(A)、不溶性盐碱地复合菌(B)、枯草芽孢杆菌(C)、解淀粉芽孢杆菌(D)4种生物菌肥及3个施用量梯度,并测定小麦苗期生长指标、土壤理化性质及土壤微生物数量。结果表明,施用4种生物菌肥处理的小麦苗期株高、叶绿素SPAD及地上部干物质质量均高于CK,且各处理小麦苗期生长指标随着生物菌肥用量的增加而提高;施用4种生物菌肥处理的土壤有机质、全量养分(全氮、全磷、全钾)和速效养分(碱解氮、速效磷、速效钾)含量均高于CK;各生物菌肥处理盆栽小麦土壤可培养细菌数量和放线菌数量均高于CK,而真菌数量均低于CK。通过主成分分析可知,枯草芽孢杆菌在施用量为0.80 g/kg时对土壤的改善效果最佳。

关键词: 生物菌肥, 小麦(Triticum aestivum L.), 苗期生长, 土壤养分, 土壤微生物, 主成分分析

Abstract: To explore the effects of different biological bacterial fertilizers on wheat growth, soil nutrients and microbial quantity, a pot experiment was conducted with wheat (Triticum aestivum L.) as the test object and no fertilizer as the CK control. Four kinds of biological bacterial fertilizers including water-soluble saline-alkali soil composite bacteria (A), insoluble saline-alkali soil composite bacteria (B), Bacillus subtilis (C), Bacillus amyloliquefaciens (D) and three application gradients were set up. The growth index of wheat seedings, physical and chemical properties and microorganisms quantity of soil were determined. The result showed that the plant height, chlorophyll SPAD and aboveground dry matter of wheat seedings treated with four kinds of biological bacterial fertilizers A, B, C and D were higher than those of CK, and these growth indexes of wheat seedlings in each treatment increased with the increase of the amount of biological bacterial fertilizers. The contents of soil organic matter, total nutrients (total nitrogen, total phosphorus and total potassium) and available nutrients (alkali-hydrolyzable nitrogen, available phosphorus and available potassium) of wheat treated with four kinds of biological bacterial fertilizers were higher than those of CK. The number of culturable bacteria and actinomycetes in the soil of potted wheat treated with each biological bacterial fertilizer was higher than that of CK, while the number of fungi was lower than that of CK. Through principal component analysis, Bacillus subtilis (C) had the best effect on improving soil when the application amount was 0.80 g/kg.

Key words: biological bacterial fertilizer, wheat(Triticum aestivum L.), seedling growth, soil nutrient, soil microorganism, principal component analysis

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