*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
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772815230
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