AMF Inoculum Enhances Crop Yields of Zea mays L. 'Chenghai No. 618' and Glycine max L. 'Zhonghuang No. 17' without Disturbing Native Fugal Communities in Coal Mine Dump

Kun Wang; Yinli Bi; Jiayu Zhang; Shaopeng Ma

doi:10.3390/ijerph192417058

AMF Inoculum Enhances Crop Yields of Zea mays L. 'Chenghai No. 618' and Glycine max L. 'Zhonghuang No. 17' without Disturbing Native Fugal Communities in Coal Mine Dump

Int J Environ Res Public Health. 2022 Dec 19;19(24):17058. doi: 10.3390/ijerph192417058.

Authors

Kun Wang¹, Yinli Bi^{1

2}, Jiayu Zhang¹, Shaopeng Ma¹

Affiliations

¹ State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing 100083, China.
² Institute of Ecological Environment Restoration in Mine Areas of West China, Xi'an University of Science and Technology, Xi'an 710054, China.

Abstract

For the agricultural development of dumps, increase in land use efficiency and protection of food security, to verify the safety, efficacy and sustainability of field-applied arbuscular mycorrhizal fungi (AMF) inoculum, and to exclude the risk of potential biological invasion, in this study, we determined the effect of AMF inoculation and intercropping patterns (maize-soybean) on the temporal dynamics of soil parameters, native AMF communities and crop yields. AMF communities were analyzed using Illumina MiSeq. A total of 448 AMF operational taxonomic units (OTUs) belonging to six genera and nine families were identified. AMF inoculation treatment significantly improved the yield of intercropping maize and increased the content of available phosphorus. AMF diversity was significantly influenced by cropping pattern and growth stage, but not by the inoculation treatment. Inoculation altered the AMF community composition in the early growth stage and facilitated a more complex AMF network in the early and late growth stages. These results indicate that AMF inoculation affects native AMF only in the early stage, and its impact on yield may be the consequence of cumulative effects due to the advantages of plant growth and nutrient uptake in the early stage.

Keywords: AMF community composition; bioinvasive risk; coal mining dump; crop yields; intercropping.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Coal
Glycine max
Humans
Mycorrhizae*
Plant Roots / microbiology
Soil Microbiology
Zea mays

Substances

Coal

Grants and funding

This research was funded jointly by the National Key Research and Development Program of China (2022YFF1303300) and the National Natural Science Foundation of China (51974326).