北方农业学报 ›› 2021, Vol. 49 ›› Issue (5): 63-68.doi: 10.12190/j.issn.2096-1197.2021.05.09

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微生物菌肥的降盐效果及对冬小麦生长的影响

王启尧1, 赵庚星1, 赵永昶1, 张术伟1, 杨婧文1, 李涛2, 李建伟2, 潘登3, 涂强4   

  1. 1.山东农业大学 资源与环境学院/土肥高效利用国家工程研究中心,山东 泰安 271018;
    2.山东省土壤肥料工作总站,山东 济南 250013;
    3.山东亿安生物工程有限公司,山东 济南 250014;
    4.山东大学微生物技术国家重点实验室,山东 济南 250100
  • 收稿日期:2021-08-31 出版日期:2021-10-20 发布日期:2022-01-06
  • 通讯作者: 赵庚星(1964—),男,教授,博士,博士生导师,主要从事农业工程与信息技术的研究工作。
  • 作者简介:王启尧(1997—),男,硕士研究生,研究方向为农业工程与信息技术。
  • 基金资助:
    国家自然科学基金项目(41877003); 山东省重大科技创新工程项目(2019JZZY010724); 山东省“双一流”奖补资金项目(SYL2017XTTD02)

Salt-reducing effect of microbial fertilizer and its effect on winter wheat growth

WANG Qiyao1, ZHAO Gengxing1, ZHAO Yongchang1, ZHANG Shuwei1, YANG Jingwen1, LI Tao2, LI Jianwei2, PAN Deng3, TU Qiang4   

  1. 1. College of Resources and Environment,Shandong Agricultural University/National Engineering Research Center for Efficient Utilization of Soil and Fertilizer,Tai'an 271018,China;
    2. Shandong Provincial Soil and Fertilizer Work Station,Ji'nan 250013,China;
    3. Shandong Yi'an Biological Engineering Co.,Ltd.,Ji'nan 250014,China;
    4. State Key Laboratory of Microbial Technology,Shandong University,Ji'nan 250100,China
  • Received:2021-08-31 Online:2021-10-20 Published:2022-01-06

摘要: 【目的】 探究不同程度盐渍化土壤施用微生物菌肥的降盐效果及冬小麦生长响应。【方法】 选取滨海盐渍土,调配轻度、中度、重度盐渍化土壤,选用亿安改进2型土壤修复菌剂,设置750、1500、2250 kg/hm2施肥梯度,比较分析土壤含盐量和冬小麦株高、SPAD值、鲜重、根系长度。【结果】 不同程度盐渍化土壤施用微生物菌肥均有一定的降盐效果,土壤含盐量较对照降幅为6.02%~36.27%,其中微生物菌肥施用量为1500 kg/hm2的轻度盐渍化处理降盐效果最为明显;施用微生物菌肥处理,冬小麦株高比对照增幅18.01%~33.52%,SPAD值提高9.82%~24.30%,鲜重提升10.53%~38.46%,根系长度增加14.08%~32.19%。微生物菌肥施用量小于1500 kg/hm2时,降盐效果随施用量增加而增强,冬小麦长势提高明显;施用量大于1500 kg/hm2,降盐效果增幅减缓。【结论】 不同程度盐渍化土壤施用微生物菌肥后有明显降盐效果,对冬小麦生长有显著促进作用。

关键词: 微生物菌肥, 土壤含盐量, 降盐效果, 冬小麦, 生长指标

Abstract: 【Objective】 To explore the salt-reducing effect of microbial fertilizer to different degrees of saline soil and the growth response of winter wheat. 【Methods】 Coastal saline soil was used to create mildly,moderately,and heavily salined soils.Yi'an improved soil remedial 2 bacteria agent was selected. Fertilization gradient of 750,1500 and 2250 kg/hm2 were set to compared and analyze soil salt content,winter wheat plant height,SPAD value,fresh weight,root length. 【Results】 The application of microbial bacterial fertilizers to different degrees of saline soil had some salt-reducing effect,and the soil salt content decreased by 6.02%-36.27% compared with the control. The mildly salinization treatment with a microbial fertilizer application rate of 1500 kg/hm2 had the most obvious salt reduction effect. Application of microbial fertilizer treatment compared with the control,the plant height of winter wheat increased by 18.01%-33.52%,SPAD value increased by 9.82%-24.30%,fresh weight increased by 10.53%-38.46%,and root length increased by 14.08%-32.19%. When the amount of microbial fertilizer was less than 1500 kg/hm2,the salt-reducing effect increased with the increase of the application amount,and the growth of winter wheat increased significantly. When the amount was more than 1500 kg/hm2,the salt-reducing effect increased slowly. 【Conclusion】 Application of microbial fertilizer in salinized soil of different degrees had obvious salt-reducing effect and significantly promoted the growth of winter wheat.

Key words: Microbial fertilizer, Soil salinity, Salt-reducing effect, Winter wheat, Growth index

中图分类号: 

  • S512.11