*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE* *for sustainable agriculture, land use and ecosystem management* Dear Subscribers, Just received, courtesy of Dr. Thierfelder. * High probability of yield gain through Conservation Agriculture in dry regions for major staple crops* by Yang Su, BenoitGabrielle , Damien Beillouin & David Makowski. Nature Scientific Reports 11:3344. 2021. 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 specifc climatic regions and crop species. *Amir Kassam * *Moderator* *Global CA-CoP* e-mail: [log in to unmask] URL: http://www.fao.org/conservation-agriculture ---------- Forwarded message --------- From: THIERFELDER, Christian Lutz (CIMMYT-Zimbabwe) <[log in to unmask] > Date: Thu, 11 Feb 2021 at 11:30 Subject: Interesting new article To: THIERFELDER, Christian Lutz (CIMMYT-Zimbabwe) <[log in to unmask]> With kind regards, Christian *Dr. Christian Thierfelder* | Principal Scientist, Cropping Systems Agronomist, Strategic Leader *International Maize and Wheat Improvement Center (CIMMYT) - Southern Africa Regional Office* P.O. Box MP 163, Mount Pleasant, Harare, Zimbabwe *email:* [log in to unmask] *skype:* chthierfelder *cel:* +263 772815230 website <http://www.cimmyt.org/en/> | *twitter <https://twitter.com/BusyBeeChris>* | linkedin <https://www.linkedin.com/in/christian-thierfelder-29193468/> | researchgate <https://www.researchgate.net/profile/Christian_Thierfelder> |facebook <https://www.facebook.com/CIMMYT> | flickr <https://www.flickr.com/photos/cimmyt/> | youtube <https://www.youtube.com/user/CIMMYTint> *This e-mail may contain confidential and/or privileged information from CIMMYT and/or its collaborators. * *Unless explicitly allowed in writing by an authorized representative, any use, reproduction, storage, * *retransmission or unauthorized disclosure of such information, whether in part or in whole, is hereby forbidden. * *If you are not the intended recipient of this e-mail, please notify the sender and delete it immediately.* ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);