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*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE*

*for sustainable agriculture, land use and ecosystem management*

Dear Subscribers,

Please see herebelow the September Cornell CA Scoopit newsletter.

Thank you Professor Hobbs for sharing.

*Amir Kassam *

*Moderator*

*Global CA-CoP*

e-mail: [log in to unmask]

URL: http://www.fao.org/conservation-agriculture

URL: http://www.act-africa.org/

URL: https://ecaf.org/
URL: http://www.caa-ap.org/

---------- Forwarded message ---------
From: Peter Hobbs <[log in to unmask]>
Date: Wed, 1 Sept 2021 at 16:09
Subject: September Cornell CA Scoopit newsletter
To: Amir Kassam <[log in to unmask]>


Dear Amir: Here is our September 2021 Conservation Agriculture Scoopit
Research Update. You can also view online at
https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?curate=true&null

Can you send this out to people who get your listserv material? The hard
copy is below.

An easier link to see all the research papers on CA is as follows:
https://www.zotero.org/groups/348525/cornell_conservation_agriculture/collections/KGBFX8BX

Also, visit our main website at http://soilhealth.org for news and other CA
information. Please use this link since we had to move our web site to a
new server and this links takes you to the CA web site.

Many thanks for helping to distribute this. Peter

[image: Conservation Agriculture Research Updates - September 2021]
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag>
Conservation Agriculture Research Updates - September 2021
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag>
by Cornell Conservation Agriculture Group (soilhealth.org)
<https://www.scoop.it/u/conservation-ag>
Powered by [image: Scoop.it] <https://www.scoop.it>

Soil C sequestration and CO2 fluxes under maize-based conservation
agriculture systems in the Eastern Cape, South Africa.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126606724/2021/08/30/soil-c-sequestration-and-co2-fluxes-under-maize-based-conservation-agriculture-systems-in-the-eastern-cape-south-africa>
From www.tandfonline.com
<https://www.tandfonline.com/doi/abs/10.1080/02571862.2020.1836274> - Today,
11:30 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126606724/2021/08/30/soil-c-sequestration-and-co2-fluxes-under-maize-based-conservation-agriculture-systems-in-the-eastern-cape-south-africa>
Muzangwa, L., Mnkeni, P.N.S. & Chiduza, C. 2021. South African Journal of
Plant and Soil. On-line article. 8 pages
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126606724/2021/08/30/soil-c-sequestration-and-co2-fluxes-under-maize-based-conservation-agriculture-systems-in-the-eastern-cape-south-africa>
https://doi.org/10.1080/02571862.2020.1836274
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study looked at the effects of conservation agriculture principles on
C sequestration and CO2 flux from two agroecological regions in the Eastern
Cape province, South Africa, over five cropping seasons. Treatments were
conventional tillage or no-till with sub-treatments maize-fallow-maize
(MFM); maize-fallow-soybean (MFS); maize- wheat-maize (MWM); or
maize-wheat-soybean (MWS). Residue management after each crop in rotation
was residue removal (R-) or residue retention (R+). The biomass and
C-inputs by the crop rotations were both in the order: MWM > MWS > MFM >
MFS. R+ resulted in greater levels of particulate organic matter (POM) than
R-. They conclude that that MWM or MWS crop rotation in conjunction with R+
under no-till offer the greatest potential for biomass and C-inputs
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126606724/2021/08/30/soil-c-sequestration-and-co2-fluxes-under-maize-based-conservation-agriculture-systems-in-the-eastern-cape-south-africa>
<https://www.scoop.it/share/post/twitter/4126606724?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126606724?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126606724?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126606724>
Advances in Conservation Agriculture. Volume 3: Adoption and Spread
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552398/2021/08/26/advances-in-conservation-agriculture-volume-3-adoption-and-spread>
August 26, 11:42 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552398/2021/08/26/advances-in-conservation-agriculture-volume-3-adoption-and-spread>
Amir Kassam (Ed.). Volume 3 of this book series on "Advances in
Conservation Agriculture". 400 pages. ISBN 978-1-78676-475-1 print version.
Available in November 2021.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552398/2021/08/26/advances-in-conservation-agriculture-volume-3-adoption-and-spread>
https://shop.bdspublishing.com/store/bds/detail/workgroup/3-190-106341
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is a preview of the third volume of this book series on the topic of
advances in Conservation Agriculture that looks at the effectiveness of CA
in differing countries and contexts. The following are 6 major sections.
1.Global adoption and spread of Conservation Agriculture; 2.Conservation
Agriculture in west and central Canada; 3.Conservation Agriculture in the
USA; 4.Conservation Agriculture in Central America, the Caribbean and
Mexico; 5.Conservation Agriculture in South America; 6.Conservation
Agriculture in Europe; This book provides an authoritative review from an
array of international experts on the adoption of CA principles in
different regions around the world. The final volume in this collection
reviews the effectiveness of CA in differing contexts (e.g. in drier
conditions where water conservation is important or in areas with poor
soil) and refers to the wealth of research and experiential evidence
currently available.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552398/2021/08/26/advances-in-conservation-agriculture-volume-3-adoption-and-spread>
<https://www.scoop.it/share/post/twitter/4126552398?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126552398?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126552398?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126552398>
Effects of conventional versus no-tillage systems on the population
dynamics of elaterid pests and the associated damage at establishment of
maize crops
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126553242/2021/08/26/effects-of-conventional-versus-no-tillage-systems-on-the-population-dynamics-of-elaterid-pests-and-the-associated-damage-at-establishment-of-maize-crops>
August 26, 11:17 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126553242/2021/08/26/effects-of-conventional-versus-no-tillage-systems-on-the-population-dynamics-of-elaterid-pests-and-the-associated-damage-at-establishment-of-maize-crops>
Furlan, L., Milosavljevic, I., Chiarini, F. & Benvegnu, I. 2021. Crop
Protection 149: 105751.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126553242/2021/08/26/effects-of-conventional-versus-no-tillage-systems-on-the-population-dynamics-of-elaterid-pests-and-the-associated-damage-at-establishment-of-maize-crops>
https://doi.org/10.1016/j.cropro.2021.105751
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper looks at the impact of no-till and surface mulch (also cover
crops) on wireworm populations in soil and damage to crops like maize on 3
farms in Italy compared to conventional tillage. The four-year cropping
rotation consisted of winter wheat (Triticum aestivum), oilseed rape
(Brassica napus), maize (Zea mays), and soybean (Glycine max) under both
tillage treatments. No differences were observed between tillage treatments
in wireworm feeding maize damage scores (P > 0.17; means for no-till and
conventional tillage maize were 3.82 and 4.14 percent damage,
respectively). These results suggest that switching from a conventional
tillage system to a no-till maize production may not cause an increase of
wireworm damage to maize, even though no-till conditions have been
historically associated with increased wireworm damage risk.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126553242/2021/08/26/effects-of-conventional-versus-no-tillage-systems-on-the-population-dynamics-of-elaterid-pests-and-the-associated-damage-at-establishment-of-maize-crops>
<https://www.scoop.it/share/post/twitter/4126553242?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126553242?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126553242?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126553242>
Interactions between cover crops and soil microorganisms increase
phosphorus availability in conservation agriculture
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551467/2021/08/26/interactions-between-cover-crops-and-soil-microorganisms-increase-phosphorus-availability-in-conservation-agriculture>
From doi.org <https://doi.org/10.1007/s11104-021-04897-x> - August 26, 9:41
AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551467/2021/08/26/interactions-between-cover-crops-and-soil-microorganisms-increase-phosphorus-availability-in-conservation-agriculture>
Hallama, M., Pekrun, C., Pilz, S., Jarosch, K.A., Frac, M., Uksa, M.,
Marhan, S. & Kandeler, E. 2021. Plant and Soil. 463 (1-2) 307-328.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551467/2021/08/26/interactions-between-cover-crops-and-soil-microorganisms-increase-phosphorus-availability-in-conservation-agriculture>
https://doi.org/10.1007/s11104-021-04897-x
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This interesting paper looks at phosphorus recycling using cover crops and
tillage reduction and their effects on soil biology in Germany. They looked
at winter cover crops versus bare soil and NT vs non-inversion tillage
using soybeans on microbial P-cycling. Microbial phosphorus, phosphatase,
and fatty acids increased under cover crops, indicating an enhanced
potential for organic P cycling. Enzyme-stable organic P shifted towards
enzyme-labile organic P pools. Effects of no-till were weaker, and a
synergy with cover crops was not evident.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551467/2021/08/26/interactions-between-cover-crops-and-soil-microorganisms-increase-phosphorus-availability-in-conservation-agriculture>
<https://www.scoop.it/share/post/twitter/4126551467?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126551467?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126551467?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126551467>
Agri-hire in Sub-Saharan Africa business models for investing in
sustainable mechanization.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549830/2021/08/26/agri-hire-in-sub-saharan-africa-business-models-for-investing-in-sustainable-mechanization>
From www.fao.org <http://www.fao.org/documents/card/en/c/cb5071en/> - August
26, 9:19 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549830/2021/08/26/agri-hire-in-sub-saharan-africa-business-models-for-investing-in-sustainable-mechanization>
Houmy, K., Rojas, M.F. & Side, C. 2021. FAO of the United Nations.
Directions in Investment number 3. 78 pages. Also in French
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549830/2021/08/26/agri-hire-in-sub-saharan-africa-business-models-for-investing-in-sustainable-mechanization>
https://doi.org/10.4060/cb5071en
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This document from FAO is relevant to sustainable agricultural
mechanization for Africa. The publication is based on case studies of hire
service providers from two regional workshops: the first held in Grand
Lahou, Côte d’Ivoire, with the participation of Benin, Burkina Faso, Côte
d’Ivoire and Senegal and the second in Kampala, Uganda, with the
participation of Ethiopia, Ghana, Kenya, Uganda, Tanzania and Zambia. Based
on the analysis of the main characteristics of the enterprises encountered
in the workshops combined with documentary analysis, five business models
were identified. This document discusses each one. Value propositions,
customer relationships and partnership development are all examples of
business model building blocks that the new generations of hire service
providers should explore in the coming years.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549830/2021/08/26/agri-hire-in-sub-saharan-africa-business-models-for-investing-in-sustainable-mechanization>
<https://www.scoop.it/share/post/twitter/4126549830?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126549830?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126549830?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126549830>
Can Retention of Crop Residues on the Field Be Justified on Socioeconomic
Grounds? A Case Study from the Mixed Crop-Livestock Production Systems of
the Moroccan Drylands.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126513269/2021/08/24/can-retention-of-crop-residues-on-the-field-be-justified-on-socioeconomic-grounds-a-case-study-from-the-mixed-crop-livestock-production-systems-of-the-moroccan-drylands>
From www.mdpi.com <https://www.mdpi.com/2073-4395/11/8/1465> - August 24,
3:11 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126513269/2021/08/24/can-retention-of-crop-residues-on-the-field-be-justified-on-socioeconomic-grounds-a-case-study-from-the-mixed-crop-livestock-production-systems-of-the-moroccan-drylands>
El-Shater, T. & Yigezu, Y.A. 2021. Agronomy. 11 (8) 1465. 20 pages.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126513269/2021/08/24/can-retention-of-crop-residues-on-the-field-be-justified-on-socioeconomic-grounds-a-case-study-from-the-mixed-crop-livestock-production-systems-of-the-moroccan-drylands>
https://doi.org/10.3390/agronomy11081465
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This article applies an endogenous switching regression model to a case
study of 2296 wheat fields in Morocco, to provide evidence on the
socio-economic impacts of residue retention. 30% and 60% plus of crop
residues were retained respectively on 35% and 14% of wheat fields. These
levels of residue retention led to 22% and 29% more yields, 25% and 32%
higher gross margins and 22% and 25% more consumption of wheat,
respectively. Residue retention is economically and biophysically
beneficial even for owners of livestock as the monetary value of the
additional grain yield more than offsets the cost of purchasing an
equivalent amount of feed from the market—all providing good economic
justification for residue retention. Development and/or import of
alternative feed sources, introducing crop insurance, and raising the
awareness of the economic, biophysical and environmental benefits of
residue retention among farmers are needed.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126513269/2021/08/24/can-retention-of-crop-residues-on-the-field-be-justified-on-socioeconomic-grounds-a-case-study-from-the-mixed-crop-livestock-production-systems-of-the-moroccan-drylands>
<https://www.scoop.it/share/post/twitter/4126513269?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126513269?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126513269?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126513269>
Eleven-year mulching and tillage practices alter the soil quality and
bacterial community composition in Northeast China.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126492578/2021/08/23/eleven-year-mulching-and-tillage-practices-alter-the-soil-quality-and-bacterial-community-composition-in-northeast-china>
From www.tandfonline.com
<https://www.tandfonline.com/doi/full/10.1080/03650340.2021.1890719> - August
23, 4:32 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126492578/2021/08/23/eleven-year-mulching-and-tillage-practices-alter-the-soil-quality-and-bacterial-community-composition-in-northeast-china>
Cao, Q.J., Li, G. Yang, F.T., Kong, F.L., Cui, Z.G. & Jiang, X.L. 2021.
Archives of Agronomy and Soil Science.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126492578/2021/08/23/eleven-year-mulching-and-tillage-practices-alter-the-soil-quality-and-bacterial-community-composition-in-northeast-china>
https://doi.org/10.1080/03650340.2021.1890719

*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study investigated the response of soil chemical, biological and
bacterial community properties to 11 years of different mulch and tillage
practices in a sandy soil in a continuous maize cropping system in China.
Treatments included: no-till + residue (ZT+R), rotary tillage + residue
(RT+R), and normal tillage (CT). Compared to CT, ZT+R and RT+R
significantly increased total organic carbon (TOC) content, C:N ratio,
available nitrogen (AN) content, and acid phosphatase (ACP) and urease
activities, while decreasing soil pH in topsoil and subsoil. ZT+R increased
bacterial richness and diversity; dominant phyla of Actinobacteria and
Acidobacteria were found in topsoil and Gemmatimonadetes in subsoil and
deep soil. However, RT+R showed negative effects on soil bacterial
diversity and bacterial community because of severe soil disturbance. ZT+R
was the best treatment for chemical and biological properties in these
sandy soils.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126492578/2021/08/23/eleven-year-mulching-and-tillage-practices-alter-the-soil-quality-and-bacterial-community-composition-in-northeast-china>
<https://www.scoop.it/share/post/twitter/4126492578?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126492578?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126492578?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126492578>
Simulating soil organic carbon in maize-based systems under improved
agronomic management in Western Kenya
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490867/2021/08/23/simulating-soil-organic-carbon-in-maize-based-systems-under-improved-agronomic-management-in-western-kenya>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0167198721000702?via%3Dihub&key=1246a8a2f7b191631188148a0ab6c7f88ca80b83>
- August 23, 3:47 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490867/2021/08/23/simulating-soil-organic-carbon-in-maize-based-systems-under-improved-agronomic-management-in-western-kenya>
Nyawira, S.S., Hartman, M.D., Nguyen, T.H., Margenot, A.J., Kihara, J.,
Paul, B.K., Williams, S., Bolo, P. & Sommer, R. 2021. Soil and Tillage
Research. 211. Article number 105000.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490867/2021/08/23/simulating-soil-organic-carbon-in-maize-based-systems-under-improved-agronomic-management-in-western-kenya>
https://doi.org/10.1016/j.still.2021.105000
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study used the DayCent biogeochemical model to identify the best
management practices for SOC sequestration. They used data from two
long-term field sites in Western Kenya that used two promoted management
practices: integrated nutrient management and conservation agriculture.
Correlations at both sites between measured and simulated SOC were low to
moderate, and in most cases produced fairly accurate predictions of SOC
trends. The conclude that model results suggest that response of the
passive SOC pool to the different management practices is a key driver of
the long-term SOC trends at the two study sites.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490867/2021/08/23/simulating-soil-organic-carbon-in-maize-based-systems-under-improved-agronomic-management-in-western-kenya>
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<https://www.scoop.it/share/post/linkedin/4126490867?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126490867>
Microbiome for sustainable agriculture: a review with special reference to
the corn production system.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126588801/2021/08/29/microbiome-for-sustainable-agriculture-a-review-with-special-reference-to-the-corn-production-system>
From link.springer.com
<https://link.springer.com/article/10.1007/s00203-021-02320-8> - August 29,
10:53 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126588801/2021/08/29/microbiome-for-sustainable-agriculture-a-review-with-special-reference-to-the-corn-production-system>
Jat, S.L., Suby, S.B., Parihar, C.M., Gambhir, G., Kumar, N. & Rakshit, S.
2021. Archives of Microbiology. 203 (6) 2771-2793.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126588801/2021/08/29/microbiome-for-sustainable-agriculture-a-review-with-special-reference-to-the-corn-production-system>
https://doi.org/10.1007/s00203-021-02320-8
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
I included this relevant paper since one of the benefits of CA is to
improve the microbiome of soils. Microbial diversity being an essential
factor for a healthy microbiome. This review explores the available
information on diversity of beneficial microbes in agricultural ecosystems
and synthesizes their commercial uses in agriculture. Microbiota in
agro-ecosystems works by nutrient acquisition, enhancing nutrient
availability, water uptake, and amelioration of abiotic and abiotic
stresses. It is important to understand the role of microbes discussed in
this paper
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126588801/2021/08/29/microbiome-for-sustainable-agriculture-a-review-with-special-reference-to-the-corn-production-system>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126588801>
Effectiveness of conservation agriculture (tillage vs. vegetal soil cover)
to reduce water erosion in maize cultivation (Zea mays L.): An experimental
study in the sub-humid uplands of Guatemala
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552361/2021/08/26/effectiveness-of-conservation-agriculture-tillage-vs-vegetal-soil-cover-to-reduce-water-erosion-in-maize-cultivation-zea-mays-l-an-experimental-study-in-the-sub-humid-uplands-of-guatemala>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S001670612100416X?via%3Dihub&key=c494d2b3649005d4dab2b799aad8290749b3f452>
- August 26, 11:27 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552361/2021/08/26/effectiveness-of-conservation-agriculture-tillage-vs-vegetal-soil-cover-to-reduce-water-erosion-in-maize-cultivation-zea-mays-l-an-experimental-study-in-the-sub-humid-uplands-of-guatemala>
Blanco-Sepulveda, R., Enriquez-Narvaez, F. & Lima, F. 2021. Geoderma. 404:
115336.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552361/2021/08/26/effectiveness-of-conservation-agriculture-tillage-vs-vegetal-soil-cover-to-reduce-water-erosion-in-maize-cultivation-zea-mays-l-an-experimental-study-in-the-sub-humid-uplands-of-guatemala>
https://doi.org/10.1016/j.geoderma.2021.115336
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper looks at the problem of soil erosion in the mountains of
Guatemala. It looks at the effectiveness of CA to reduce soil erosion in
maize cultivation. The study was conducted over a three-year period, from
2017 to 2019, on three experimental plots managed under conventional
tillage (CT), reduced tillage (RT) and no-tillage (NT). The
general-to-specific (GETS) method, based on reduction theory, was used to
generate explanatory models of the erosion-affected surface. The results
showed different rates of eroded soil surface between the three management
systems: 73.2% under CT, 41.3% under RT and 20.4% under NT. Three
conclusions are derived and discussed in this paper. Litter layer was the
key explanatory factor for erosion that was highly influenced by the
agricultural management system. The paper recommended for the area of this
study that soil management under NT with a dense and well distributed
litter cover is best to control erosion.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126552361/2021/08/26/effectiveness-of-conservation-agriculture-tillage-vs-vegetal-soil-cover-to-reduce-water-erosion-in-maize-cultivation-zea-mays-l-an-experimental-study-in-the-sub-humid-uplands-of-guatemala>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126552361>
Climate change and agriculture in Burkina Faso
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551820/2021/08/26/climate-change-and-agriculture-in-burkina-faso>
From updatepublishing.com
<https://updatepublishing.com/journal/index.php/jaa/article/view/6596> - August
26, 11:02 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551820/2021/08/26/climate-change-and-agriculture-in-burkina-faso>
Bilali, H.E. 2021 Journal of Aridland Agriculture. 7. 22-47.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551820/2021/08/26/climate-change-and-agriculture-in-burkina-faso>
https://doi.org/10.25081/jaa.2021.v7.6596
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This article is about the impacts of climate change on Burkina Faso
(BF)agriculture where CC is expected to be more severe. 1820 documents were
found and 217 used in this review. Analyzed adaptation options include
conservation agriculture and climate-smart agriculture, irrigation, crop
diversification, intensification, livelihoods diversification and
migration. The focus and discussion is mainly on agricultural and
individual responses, while livelihoods strategies such as diversification
and migration are less frequently addressed. They conclude that more
research is needed with results crucial for informing policy makers.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126551820/2021/08/26/climate-change-and-agriculture-in-burkina-faso>
<https://www.scoop.it/share/post/twitter/4126551820?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126551820?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126551820?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126551820>
Long-Term Trial of Tillage Systems for Sugarcane: Effect on Topsoil
Hydrophysical Attributes
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549891/2021/08/26/long-term-trial-of-tillage-systems-for-sugarcane-effect-on-topsoil-hydrophysical-attributes>
From www.mdpi.com <https://www.mdpi.com/2071-1050/13/6/3448> - August 26,
9:30 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549891/2021/08/26/long-term-trial-of-tillage-systems-for-sugarcane-effect-on-topsoil-hydrophysical-attributes>
Martini, R.F., Valani, G.P., da Silva, L.F.S., Bolonhezi, D., Di Prima, S.,
Cooper, M. 2021. Siustainability (Switzerland) 13 (6) Article 3448.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549891/2021/08/26/long-term-trial-of-tillage-systems-for-sugarcane-effect-on-topsoil-hydrophysical-attributes>
https://doi.org/10.3390/su13063448
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This article was chosen since it studies tillage systems and liming in a
sugarcane system in Brazil. Infiltration tests and soil sampling down to
0.10 m were performed in order to determine saturated soil hydraulic
conductivity, soil bulk density, soil total porosity, macroporosity,
microporosity, and soil resistance to penetration. Treatments included
no-tillage (NT) and conventional tillage (CT) with 0 and 4 t/ha lime and an
adjacent native forest (NF) as a check. The lowest bulk density and highest
soil total porosity, macroporosity and saturated hydraulic conductivity
were found in the NF. The bulk density in CT4 and NT0 was higher than in
other systems, indicating the need for amelioration. NT4 is suggested as
the most viable system for conservation agriculture in sugarcane fields,
combining the benefits of no-tillage and liming to enhance soil
hydrophysical functions.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126549891/2021/08/26/long-term-trial-of-tillage-systems-for-sugarcane-effect-on-topsoil-hydrophysical-attributes>
<https://www.scoop.it/share/post/twitter/4126549891?forceAnonymous=1>
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<https://www.scoop.it/share/post/linkedin/4126549891?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126549891>
Climate-smart agriculture practices influence weed density and diversity in
cereal-based agri-food systems of western Indo-Gangetic plains.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126529711/2021/08/25/climate-smart-agriculture-practices-influence-weed-density-and-diversity-in-cereal-based-agri-food-systems-of-western-indo-gangetic-plains>
From www.nature.com
<https://www.nature.com/articles/s41598-021-95445-1> - August
25, 9:48 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126529711/2021/08/25/climate-smart-agriculture-practices-influence-weed-density-and-diversity-in-cereal-based-agri-food-systems-of-western-indo-gangetic-plains>
Jat, H.S., Kumar, V., Kakraliya, S.K., Ahmed, A.M., Datta, A., Choudhary,
M., Gathala, M.K. McDonald, A.J., Jat, M.L. & Sharma, P.C. 2021. Scientific
Reports. 11. Article number 15901.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126529711/2021/08/25/climate-smart-agriculture-practices-influence-weed-density-and-diversity-in-cereal-based-agri-food-systems-of-western-indo-gangetic-plains>
https://doi.org/10.1038/s41598-021-95445-1
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This 8-year study in India looked at the shift in weed species and
diversity with different CA scenarios. The scenarios were Sc1, conventional
tillage (CT)-based rice–wheat system with flood irrigation (farmers’
practice); Sc2, CT-rice, zero tillage (ZT)-wheat–mungbean with flood
irrigation (partial CA-based); Sc3, ZT rice–wheat–mungbean with flood
irrigation (partial CSA-based rice); Sc4, ZT maize–wheat–mungbean with
flood irrigation (partial CSA-based maize); Sc5, ZT rice–wheat–mungbean
with subsurface drip irrigation (full CSA-based rice); and Sc6, ZT
maize–wheat–mungbean with subsurface drip irrigation (full CSA-based
maize). Weed density, biomass and diversity remained almost the same across
years. Observed shifts in weed species were therefore attributed to
different CA scenarios that are discussed in this paper.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126529711/2021/08/25/climate-smart-agriculture-practices-influence-weed-density-and-diversity-in-cereal-based-agri-food-systems-of-western-indo-gangetic-plains>
<https://www.scoop.it/share/post/twitter/4126529711?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126529711?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126529711?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126529711>
Conservation Agriculture as a System to Enhance Ecosystem Services
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126512475/2021/08/24/conservation-agriculture-as-a-system-to-enhance-ecosystem-services>
From www.mdpi.com <https://www.mdpi.com/2077-0472/11/8/718> - August 24,
2:58 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126512475/2021/08/24/conservation-agriculture-as-a-system-to-enhance-ecosystem-services>
Jayaraman, S., Dang, Y.P., Naorem, A., Page, K.L. & Dalal, R.C. 2021.
Agriculture. 11 (8) 718 (14 pages).
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126512475/2021/08/24/conservation-agriculture-as-a-system-to-enhance-ecosystem-services>
https://doi.org/10.3390/agriculture11080718
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This article looks at the understanding and decoding of site-specific
complexities of CA systems using a multidisciplinary approach. It is more
of a discussion rather than a research paper. They make the following
comments. CA typically improves soil quality and water conservation;
however, its effect on crop productivity is highly variable and dependent
on local conditions/management. Crop residue retention plays a crucial role
in CA and can help to improve overall soil health and ultimately crop
productivity and sustainability. However, weed control, herbicide
resistance, and weed shift under residue retained fields is a challenge. CA
can also increase water infiltration and reduce soil loss and runoff. This
reduces the surface transport of nitrate and phosphorus from agricultural
fields and the eutrophication of water bodies, although leaching of nitrate
to groundwater can potentially increase. In addition, CA has been proposed
as one of the components in climate-smart agriculture, owing to its reduced
period to seed/plant next crop, reduced soil disturbance and low
consumption of fossil fuels.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126512475/2021/08/24/conservation-agriculture-as-a-system-to-enhance-ecosystem-services>
<https://www.scoop.it/share/post/twitter/4126512475?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4126512475?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4126512475?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4126512475>
Modeling smallholder agricultural systems to manage Striga in the semi-arid
tropics
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490894/2021/08/23/modeling-smallholder-agricultural-systems-to-manage-striga-in-the-semi-arid-tropics>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0308521X20308696?via%3Dihub&key=5c231a18ac26a0258520d76089ae7ab4a5c7d3cb>
- August 23, 4:02 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490894/2021/08/23/modeling-smallholder-agricultural-systems-to-manage-striga-in-the-semi-arid-tropics>
Silberg, T.R., Renner, K., Olabisi, L.S., Richardson, R.B., Chimonyo,
V.G,P., Uriona-Maldonado, M., Basso, B.B. & Mwale, C. 2021. Agricultural
Systems. 187. Article number 103008.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490894/2021/08/23/modeling-smallholder-agricultural-systems-to-manage-striga-in-the-semi-arid-tropics>
https://doi.org/10.1016/j.agsy.2020.103008
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is a study of the parasitic weed, Striga, a frequent problem for
smallholder farmers in South Africa. They used system dynamic modeling to
assess the efficacy of various striga treatments (SCPs) across different
seasons and agroecosystems in maize based cropping systems. Model
simulations indicate that while a combination of SCPs are necessary to
manage the weed, future research should focus on developing
smallholder-adapted SCPs that address the attachment stage of the weed's
lifecycle (e.g., timely manure application) rather than its germination,
emergence or flowering stages. They conclude that it is imperative to
develop decision support tools like systems models to evaluate SCPs for
smallholders that help extension agents to provide correct information to
farmers.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4126490894/2021/08/23/modeling-smallholder-agricultural-systems-to-manage-striga-in-the-semi-arid-tropics>
<https://www.scoop.it/share/post/twitter/4126490894?forceAnonymous=1>
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