Skip to main content
Log in

Root growth, root senescence and root system architecture in maize under conservative strip tillage system

  • Research Article
  • Published:
Plant and Soil Aims and scope Submit manuscript

Abstract

Aims

Root system architecture (RSA) is important for nutrient and water acquisition efficiency. The adaptation of root growth and RSA to soil structure under conservative strip tillage (ST) system warrants further investigation.

Methods

A three-year field experimentation was conducted in Northeast China to investigate the RSA and dynamic root growth of rain-fed maize under ST system by comparison with the conventional tillage (CT).

Results

Grain yield in ST and CT was not significantly different, but their yield components differed. Compared to CT, grain number per ear was reduced by 4.4%, while 1000-grain weight was increased by 6.6% in ST. Root growth in ST plants was inhibited in the vegetative stage, as indicated by the reduced total root length (by 27.7–40.1%) compared to CT. During post-silking stage, the total root length was not different between ST and CT plants but the root xylem bleeding rate in ST plants was 70.7%-449.9% greater than that in CT. The uneven horizontal distribution of soil bulk density and soil temperature made the RSA of ST plants steeper compared to CT. Moreover, the D95 of root distribution in ST plant roots was greater.

Conclusions

In ST system, colder, more compacted soil in the inter-row soil likely caused the lower root growth and consequently lower shoot dry matter during the vegetative stage. However, root senescence was delayed which was beneficial for water and nitrogen acquisition during grain filling. Strategies to improve early root growth may increase maize productivity in ST systems.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Data availability

Data will be made available on request.

References

Download references

Acknowledgements

We gratefully acknowledge the National Science Foundation of China (No. U19A2035) for financial support.

Author information

Authors and Affiliations

Authors

Contributions

Ye Sha: Methodology, Investigation, Data curation, Writing-original draft. Guohua Mi: Writing-review & editing, Supervision, Project administration, Funding acquisition. All authors contributed to the conceptual development and writing of this article. All authors reviewed the manuscript and contributed to the interpretation and manuscript revisions.

Corresponding author

Correspondence to Guohua Mi.

Ethics declarations

Conflicts of interest

The authors declare no competing interests.

Additional information

Responsible Editor: Hans Lambers.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 2420 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sha, Y., Liu, Z., Hao, Z. et al. Root growth, root senescence and root system architecture in maize under conservative strip tillage system. Plant Soil 495, 253–269 (2024). https://doi.org/10.1007/s11104-023-06322-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11104-023-06322-x

Keywords

Navigation