Nitrogen addition enhances seed yield by improving soil enzyme activity and nutrients

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Plant Biology

Main article text

 

Introduction

Materials and Methods

Experimental sites

Experimental management

Experimental design

Yield components and seed yield

Soil enzyme activities

Soil nutrients

Statistical analysis

Result

Soil nutrients

Soil enzyme activities

Yield components and seed yield

Correlation and pathway analysis

Comprehensive analysis of membership function

Discussion

Effect of N addition on soil nutrients

Effect of N addition on soil enzyme activities

Effect of N addition on seed yield and yield components

Correlation and path analysis

Conclusion

Supplemental Information

Supplementary figure, tables, and raw data.

DOI: 10.7717/peerj.16791/supp-1

Additional Information and Declarations

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Wenbo Mi conceived and designed the experiments, performed the experiments, analyzed the data, authored or reviewed drafts of the article, and approved the final draft.

Feng Luo performed the experiments, authored or reviewed drafts of the article, and approved the final draft.

Wenhui Liu conceived and designed the experiments, authored or reviewed drafts of the article, and approved the final draft.

Yan Qin analyzed the data, prepared figures and/or tables, and approved the final draft.

Yongchao Zhang analyzed the data, prepared figures and/or tables, and approved the final draft.

Kaiqiang Liu analyzed the data, authored or reviewed drafts of the article, and approved the final draft.

Wen Li analyzed the data, prepared figures and/or tables, and approved the final draft.

Data Availability

The following information was supplied regarding data availability:

The raw data is available in the Supplemental File.

Funding

This research was supported by the Qinghai innovation platform construction project (2023), and the China Agriculture Research System (CARS-34). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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