Skip to Main content Skip to Navigation
Journal articles

High probability of yield gain through conservation agriculture in dry regions for major staple crops

Abstract : Conservation agriculture (CA) has been promoted to mitigate climate change, reduce soil erosion, and provide a variety of ecosystem services. Yet, its impacts on crop yields remains controversial. To gain further insight, we mapped the probability of yield gain when switching from conventional tillage systems (CT) to CA worldwide. Relative yield changes were estimated with machine learning algorithms trained by 4403 paired yield observations on 8 crop species extracted from 413 publications. CA has better productive performance than no-till system (NT), and it stands a more than 50% chance to outperform CT in dryer regions of the world, especially with proper agricultural management practices. Residue retention has the largest positive impact on CA productivity comparing to other management practices. The variations in the productivity of CA and NT across geographical and climatical regions were illustrated on global maps. CA appears as a sustainable agricultural practice if targeted at specific climatic regions and crop species.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03152751
Contributor : David Makowski <>
Submitted on : Thursday, April 15, 2021 - 3:23:52 PM
Last modification on : Monday, August 23, 2021 - 11:20:02 AM
Long-term archiving on: : Friday, July 16, 2021 - 6:53:25 PM

File

2021_Su_Scientific report.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Yang Su, Benoit Gabrielle, Damien Beillouin, David Makowski. High probability of yield gain through conservation agriculture in dry regions for major staple crops. Scientific Reports, Nature Publishing Group, 2021, 11, pp.3344. ⟨10.1038/s41598-021-82375-1⟩. ⟨hal-03152751⟩

Share

Metrics

Record views

158

Files downloads

151