北方农业学报2025，Vol.53Issue(5)：67-77,11.DOI:10.12190/j.issn.2096-1197.2025.05.07
秸秆还田配施生物菌剂对土壤物理性状及玉米产量的影响
Effects of straw returning combined with microbial agents on soil physical properties and maize yield
摘要
Abstract
[Objective]To address issues such as declining soil fertility and soil compaction in farmland of the irrigation area on the south bank of the Yellow River in Inner Mongolia,suitable microbial agents were screened for application in this region,providing a reference for the application and promotion of straw returning combined with microbial agents.[Methods]The experiment was conducted in Dalad Banner,Ordos City,Inner Mongolia,from 2022 to 2023,using the maize variety Lihe No.1 as the test material.Based on a foundation of straw returning,four different microbial agent treatments were established:Bacillus subtilis(Treatment A),Bacillus subtilis+Bacillus licheniformis(Treatment B),Bacillus subtilis+Saccharomyces cerevisiae(Treatment C),and Bacillus subtilis+Trichoderma harzianum(Treatment D),with no microbial agent application as the control(CK).The effects of different treatments on soil physical properties in the 0-60 cm soil layer and on maize yield were analyzed.[Results]The mass fraction of large aggregates(≥0.25 mm)in treatments A and B was significantly higher than that in CK,promoting soil stability;in the 40-60 cm soil layer,the soil bulk density in treatments A and B was significantly reduced by 6.84%and 6.43%compared with CK(P<0.05);the total soil porosity was significantly increased by 4.41 and 4.09 percentage points compared with CK(P<0.05);the soil mass water content in all treatments fluctuated throughout different maize growth stages,reaching its peak during the large bell mouth stage.The maize grain yield of all treatments significantly increased by 2.57%to 10.34%compared with CK;the resulting economic benefits increased by 6.57%to 47.57%compared with CK,with treatments A and B being the highest at 8 514.93 and 7 413.82 CNY/hm2,respectively.[Conclusion]Under straw returning conditions,the application of the microbial agents Bacillus subtilis and Bacillus subtilis+Bacillus licheniformis can better reduce soil bulk density,increase soil aeration,improve soil physical structure,and achieve higher maize grain yield and economic benefits.关键词
秸秆还田/生物菌剂/土壤物理性状/玉米/产量/经济效益Key words
Straw returning/Microbial agents/Soil physical properties/Maize/Yield/Economic benefits分类
农业科技引用本文复制引用
段思彤,张一迪,赵子豪,王伟妮,刘俊梅,邢俊,张德健,李娟,张向前..秸秆还田配施生物菌剂对土壤物理性状及玉米产量的影响[J].北方农业学报,2025,53(5):67-77,11.基金项目
内蒙古自治区"英才兴蒙"工程团队项目(2025TYL09) （2025TYL09）
鄂尔多斯市"揭榜挂帅"项目(JBGS-2021-001) （JBGS-2021-001）
