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From:
Amir Kassam <[log in to unmask]>
Reply To:
Amir Kassam <[log in to unmask]>
Date:
Tue, 2 Mar 2021 09:56:45 +0000
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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 March 2021 Cornell CA 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


---------- Forwarded message ---------
From: Peter Hobbs <[log in to unmask]>
Date: Mon, 1 Mar 2021 at 00:28
Subject: March 2021 Cornell CA Scoopit newsletter
To: Amir Kassam <[log in to unmask]>


Dear Amir: Here is our March 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.

[image: Conservation Agriculture Research Updates - March 2021]
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag>
Conservation Agriculture Research Updates - March 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>

High probability of yield gain through conservation agriculture in dry
regions for major staple crops.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399283/2021/02/24/high-probability-of-yield-gain-through-conservation-agriculture-in-dry-regions-for-major-staple-crops>
From doi.org <https://doi.org/10.1038/s41598-021-82375-1> - Today, 7:29 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399283/2021/02/24/high-probability-of-yield-gain-through-conservation-agriculture-in-dry-regions-for-major-staple-crops>
Su, Y., Gabrielle, B., Beillouin, D. & Makowski, D. 2021. Nature Scientific
Reports. 11. 3344.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399283/2021/02/24/high-probability-of-yield-gain-through-conservation-agriculture-in-dry-regions-for-major-staple-crops>
https://doi.org/10.1038/s41598-021-82375-1
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
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.This paper looks at the
probability of yield gain when switching from 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 a 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 paper concludes
CA appears as a sustainable agricultural practice if targeted at specific
climatic regions and crop species.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399283/2021/02/24/high-probability-of-yield-gain-through-conservation-agriculture-in-dry-regions-for-major-staple-crops>
<https://www.scoop.it/share/post/twitter/4123399283?forceAnonymous=1>
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<https://www.scoop.it/share/post/linkedin/4123399283?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123399283>
Intercomparison of crop establishment methods for improving yield and
profitability in the rice-wheat system of Eastern India.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398269/2021/02/24/intercomparison-of-crop-establishment-methods-for-improving-yield-and-profitability-in-the-rice-wheat-system-of-eastern-india>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0378429019316776?via%3Dihub&key=2a3022b56b0aa928a7289627d3c18e770eb16595>
- Today, 7:10 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398269/2021/02/24/intercomparison-of-crop-establishment-methods-for-improving-yield-and-profitability-in-the-rice-wheat-system-of-eastern-india>
Singh, M., Kumar, P., Kumar, V., Solanki, I.S., McDonald, A.J., Kumar, A.,
Poonia, S.P., Kumar, V., Anurag, A., Anurag, K., Singh, D.K.,
Balwinder-Singh, Singh, S. & Malik, R.K. 2020. Field Crops Research. 250.
Article number 107776.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398269/2021/02/24/intercomparison-of-crop-establishment-methods-for-improving-yield-and-profitability-in-the-rice-wheat-system-of-eastern-india>
https://doi.org/10.1016/j.fcr.2020.107776
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
Conventionally managed rice-wheat systems of the eastern Indo-Gangetic
Plains (E-IGP) that rely on soil puddling for rice and intensive tillage
for wheat are low-yielding and resource-inefficient, leading to low
profitability.This study looks at an array of Tillage and Crop
Establishment (TCE) options to address these problems and identify TCE
methods for rice-wheat systems that are high yielding, less
resource-intensive, and more profitable. In all systems, the inclusion of a
medium-duration rice hybrid resulted in higher rice and system yields.
These results suggest that significant gains in profitability are possible
with emerging TCE practices in rice-wheat systems, but alternatives such as
the SRI and SWI will likely erode farmer incomes.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398269/2021/02/24/intercomparison-of-crop-establishment-methods-for-improving-yield-and-profitability-in-the-rice-wheat-system-of-eastern-india>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123398269>
Effect of no-tillage on soil bacterial and fungal community diversity: A
meta- analysis
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400023/2021/02/24/e-ect-of-no-tillage-on-soil-bacterial-and-fungal-community-diversity-a-meta-analysis>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0167198720305031?via%3Dihub&key=433c35286dcfa13eb48287487d375a1787b06b50>
- Today, 6:53 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400023/2021/02/24/e-ect-of-no-tillage-on-soil-bacterial-and-fungal-community-diversity-a-meta-analysis>
Li, Y., Song, D., Liang, S., Dang, P., Qin, X., Liao, Y. & Siddique, K.H.M.
2020. Soil and Tillage Research. 204. Article number 104721.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400023/2021/02/24/e-ect-of-no-tillage-on-soil-bacterial-and-fungal-community-diversity-a-meta-analysis>
https://doi.org/10.1016/j.still.2020.104721
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This study looks at the effect on no-tillage on soil microbial diversity.
The study used 43 peer reviewed articles with 141 observations from around
the World. No-tillage had different effects on bacterial and fungal community
diversity — increasing soil bacterial diversity, with no significant change
to fungal diversity — and soil type and stubble had a significant impact on
soil bacterial diversity.  No-tillage significantly increased the relative
abundance of Acidobacteria, decreased Actinobacteria, and had little effect
on Proteobacteria, Chloroflex, Firmicute, and Bacteroides. A structural
equation model showed that retaining stubble under no-tillage had the most
significant effect on soil microbial diversity by changing soil organic
carbon and total nitrogen contents.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400023/2021/02/24/e-ect-of-no-tillage-on-soil-bacterial-and-fungal-community-diversity-a-meta-analysis>
<https://www.scoop.it/share/post/twitter/4123400023?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4123400023?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4123400023?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123400023>
Weed Seed Decay in No-Till Field and Planted Riparian Buffer Zone.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123397947/2021/02/24/weed-seed-decay-in-no-till-field-and-planted-riparian-buffer-zone>
From www.mdpi.com <https://www.mdpi.com/2223-7747/9/3/293> - Today, 5:48 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123397947/2021/02/24/weed-seed-decay-in-no-till-field-and-planted-riparian-buffer-zone>
Nikolic, N., Squartini, A., Concheri, G., Stevanato, P., Zanin, G. & Masin,
R. 2020. Plants-Basel. 9 (3).
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123397947/2021/02/24/weed-seed-decay-in-no-till-field-and-planted-riparian-buffer-zone>
https://doi.org/10.3390/plants9030293
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
The paper looked at the issue of seed degradation in an undisturbed and a
no-till soil, trying not only to uncover where seeds are more degraded, but
also to investigate the microbial activities that could be involved in this
process in Northern Italy. Seed decay was tested in two different sites, a
no-till field and the adjacent buffer zone. Soil microbial activity was
also measured. Degradation of the buried seeds was higher in the no-till
field soil than in the buffer strip for all the studied species as was the
microbial cellulolytic activity. The paper concluded that no-till
management can improve weed seed suppression in the soil. Moreover,
cellulolytic microorganisms play an important role in seedbank longevity,
so cellulolytic activity surveys could be used as an early monitoring
bioindicator for weed seed suppression in soil.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123397947/2021/02/24/weed-seed-decay-in-no-till-field-and-planted-riparian-buffer-zone>
<https://www.scoop.it/share/post/twitter/4123397947?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4123397947?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4123397947?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123397947>
Socioeconomic Impacts of Conservation Agriculture based Sustainable
Intensification (CASI) with Particular Reference to South Asia.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123395316/2021/02/24/socioeconomic-impacts-of-conservation-agriculture-based-sustainable-intensification-casi-with-particular-reference-to-south-asia>
From link.springer.com
<https://link.springer.com/chapter/10.1007/978-3-030-46409-7_22> - Today,
11:17 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123395316/2021/02/24/socioeconomic-impacts-of-conservation-agriculture-based-sustainable-intensification-casi-with-particular-reference-to-south-asia>
Dixon, J., Rola-Rubzen, M.F., Timsina, J., Cummins, J., Tiwari, T.P., Dang,
T.P., Dang, Y.P., Dalal, R.C. & Menzies, N.W. 2020. Chapter 22. 377-394 In.
Dang Y., Dalal R., Menzies N. (eds). No-till Farming Systems for
Sustainable Agriculture: Challenges and Opportunities.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123395316/2021/02/24/socioeconomic-impacts-of-conservation-agriculture-based-sustainable-intensification-casi-with-particular-reference-to-south-asia>
https://doi.org/10.1007/978-3-030-46409-7_22
Book available at:
https://link.springer.com/book/10.1007/978-3-030-46409-7
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This is a chapter in a 2020 book published by Springer Cham that looks at
Conservation Agriculture based Sustainable Intensification (CASI) using
participatory on-farm data from Bangladesh, Nepal and Eastern India. CASI
strengthened the Food-Energy-Water nexus through increased food crop
productivity, and energy and water use efficiencies. Furthermore, CASI
reduced greenhouse gas emissions and improved natural resources.
Significant socioeconomic impacts of CASI were improved household food
security and income, reduced production costs, better returns to labor,
benefits to women, expanded social capital and strengthened system
resilience. These socioeconomic benefits are important drivers of
smallholder adoption of CASI and underpin the prospects for widespread
scaling.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123395316/2021/02/24/socioeconomic-impacts-of-conservation-agriculture-based-sustainable-intensification-casi-with-particular-reference-to-south-asia>
<https://www.scoop.it/share/post/twitter/4123395316?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4123395316?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4123395316?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123395316>
Is tillage beneficial or detrimental for insect and slug management? A
meta-analysis.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396103/2021/02/24/is-tillage-beneficial-or-detrimental-for-insect-and-slug-management-a-meta-analysis>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0167880920300347?via%3Dihub&key=daf69d4cdb763010842105711a931499ad1808be>
- Today, 10:37 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396103/2021/02/24/is-tillage-beneficial-or-detrimental-for-insect-and-slug-management-a-meta-analysis>
Rowen, E.K., Regan, K.H., Barbercheck, M.E. & Tooker, J.F. 2020.
Agriculture, Ecosystems & Environment. 294. Article number 106849.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396103/2021/02/24/is-tillage-beneficial-or-detrimental-for-insect-and-slug-management-a-meta-analysis>
https://doi.org/10.1016/j.agee.2020.106849
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This meta-analysis paper looks at the impact of tillage practices on insect
pests and slugs with the hypothesis that using reduced/zero-tillage
increases predator populations that help biological control. The paper
evaluates the effects of reduced-tillage practices (e.g., no-till,
harrowing, shallow disking) on the abundance of invertebrate pests and
natural enemies relative to high-disturbance tillage practices (e.g.,
moldboard plowing), using studies published between 1983 and 2017. Results
show that insect and slug pests were not more abundant in reduced-tillage
systems than in high-disturbance tillage systems. Pest herbivores that
spend part of their life-cycle in the soil followed this pattern, but
foliar pests were more abundant in systems with more intense tillage
practices. The abundance of arthropod predators that spend part of their
life-cycle in the soil were significantly lower in high-disturbance tillage
systems compared with no-disturbance tillage systems, regardless of the
intensity of the disturbance.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396103/2021/02/24/is-tillage-beneficial-or-detrimental-for-insect-and-slug-management-a-meta-analysis>
<https://www.scoop.it/share/post/twitter/4123396103?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4123396103?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4123396103?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123396103>
Soil fertility and nutrient budget after 23-years of different soil tillage
systems and winter cover crops in a subtropical Oxisol
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349986/2021/02/22/soil-fertility-and-nutrient-budget-after-23-years-of-different-soil-tillage-systems-and-winter-cover-crops-in-a-subtropical-oxisol>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0016706117305530?via%3Dihub&key=b4d0cc83538fd8ecb33e9687c4bb402e7bf8c359>
- February 22, 2:18 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349986/2021/02/22/soil-fertility-and-nutrient-budget-after-23-years-of-different-soil-tillage-systems-and-winter-cover-crops-in-a-subtropical-oxisol>
Tiecher, T., Calegari, A., Caner, L. & Rheinheimer, D.S. 2017. Geoderma.
308. 78-85.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349986/2021/02/22/soil-fertility-and-nutrient-budget-after-23-years-of-different-soil-tillage-systems-and-winter-cover-crops-in-a-subtropical-oxisol>
https://doi.org/10.1016/j.geoderma.2017.08.028
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This study aimed to evaluate the long-term (23-yrs) effect of soil tillage
systems and winter cover crops on (i) soil acidity, (ii) nutrient
availability, and (iii) P and K budget in a subtropical Oxisol from
Southern Brazil.They used 6 cover crops and CT vs NT. Continuous NT system
for 23-years resulted in higher soil fertility in the topsoil (0–10cm)
compared to CT, but with some limitations of nutrient availability and soil
acidity below 10cm depth compared to CT. Surface application of lime in NT
reduced soil acidity up to 20cm compared to CT. The budget of P was
negative for all treatments, highlighting the P-sink behavior of this
strongly weathered subtropical Oxisol. Among the cover crops tested, black
oat stood out by its greater production of biomass, resulting in higher P
and K availability in the soil surface.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349986/2021/02/22/soil-fertility-and-nutrient-budget-after-23-years-of-different-soil-tillage-systems-and-winter-cover-crops-in-a-subtropical-oxisol>
<https://www.scoop.it/share/post/twitter/4123349986?forceAnonymous=1>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123349986>
Structural diversity and efficacy of culturable cellulose decomposing
bacteria isolated from rice–pulse resource conservation practices.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349877/2021/02/22/structural-diversity-and-efficacy-of-culturable-cellulose-decomposing-bacteria-isolated-from-rice-pulse-resource-conservation-practices>
From onlinelibrary.wiley.com
<https://onlinelibrary.wiley.com/doi/10.1002/jobm.201900275> - February 22,
1:32 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349877/2021/02/22/structural-diversity-and-efficacy-of-culturable-cellulose-decomposing-bacteria-isolated-from-rice-pulse-resource-conservation-practices>
Dash, P.K., Bhattacharyya, P., Shahid, M., Roy, P.S., Padhy, S.R., Swain,
C.K., Kumar, U., Gautam, P., Lal, B., Panneerselvam, P. & Nayak, A.K. 2019.
Journal of Basic Microbiology. 59 (10) 963-978.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349877/2021/02/22/structural-diversity-and-efficacy-of-culturable-cellulose-decomposing-bacteria-isolated-from-rice-pulse-resource-conservation-practices>
https://doi.org/10.1002/jobm.201900275
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This paper from Eastern India looks at various ways of establishment of
crops in a rice-pulse system and their effect on cellulolytic bacteria. .
It has 7 different establishment systems that include the traditional
puddling and transplanting for rice but also direct seeding with
inter-cropped Sesbania, wet direct sowing, ZT direct sowing and use of drum
seeder plus biochar. Their findings show that long-term ZT in the
rice-pulse system could be a unique source for efficient cellulose
decomposing bacteria and further the efficient bacterial strains isolated
from this system can be used as efficient bioinoculants for in situ as well
as ex-situ decomposition of rice straw particularly in conservation
agriculture
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349877/2021/02/22/structural-diversity-and-efficacy-of-culturable-cellulose-decomposing-bacteria-isolated-from-rice-pulse-resource-conservation-practices>
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Methodology for estimating the impact of no tillage on the 4perMille
initiative: The case of annual crops in Spain.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399272/2021/02/24/methodology-for-estimating-the-impact-of-no-tillage-on-the-4permille-initiative-the-case-of-annual-crops-in-spain>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0016706119328587?via%3Dihub&key=dc32b09bbc4ca6bd19fd8e2d8e1bb791acc08cbb>
- Today, 7:21 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399272/2021/02/24/methodology-for-estimating-the-impact-of-no-tillage-on-the-4permille-initiative-the-case-of-annual-crops-in-spain>
Moreno-Garcia, M., Repullo-Ruiberriz, M.A., Gonzalez-Sanchez, E.J.,
Ordenez-Fernandez, R., Veroz-Gonzalez, O. & Maria Carbonell-Bojollo, R.
2020. Geoderma. 371. Article number 114381.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399272/2021/02/24/methodology-for-estimating-the-impact-of-no-tillage-on-the-4permille-initiative-the-case-of-annual-crops-in-spain>
https://doi.org/10.1016/j.geoderma.2020.114381
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This 4perMile initiative objective was to increase the annual amount of C
in soils of the world by 0.4%. No Tillage (NT) potential applied in annual
crops is presented in this paper as one way to achieve this. The comparison
between the annual carbon sequestration (CS) through NT and the contents in
SOC in annual crops, allowed the calculation of the potential importance of
NT, within the regional framework, of the 4perMille Initiative. This
methodology for calculating the NT potential over the 4perMille Initiative
can be easily replicated in regions and countries around the world.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399272/2021/02/24/methodology-for-estimating-the-impact-of-no-tillage-on-the-4permille-initiative-the-case-of-annual-crops-in-spain>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123399272>
Evaluating machine learning algorithms for predicting maize yield under
conservation agriculture in Eastern and Southern Africa.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400031/2021/02/24/evaluating-machine-learning-algorithms-for-predicting-maize-yield-under-conservation-agriculture-in-eastern-and-southern-africa>
From link.springer.com
<https://link.springer.com/article/10.1007/s42452-020-2711-6> - Today, 7:00
PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400031/2021/02/24/evaluating-machine-learning-algorithms-for-predicting-maize-yield-under-conservation-agriculture-in-eastern-and-southern-africa>
Mupangwa, W., Chipindu, L., Nyagumbo, I., Mkuhlani, S. & Sisito, G. 2020.
Springer Nature (SN) Applied Sciences. 2 (5) article number 952.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400031/2021/02/24/evaluating-machine-learning-algorithms-for-predicting-maize-yield-under-conservation-agriculture-in-eastern-and-southern-africa>
https://doi.org/10.1007/s42452-020-2711-6
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This paper uses machine learning (ML) approaches as a promising artificial
intelligence alternative and complimentary tools to the commonly used crop
production models.The study was designed to answer the following questions:
(a) Can machine learning techniques predict maize grain yields under
conservation agriculture (CA)? (b) How close can ML algorithms predict
maize grain yields under CA-based cropping systems in the highlands and
lowlands of Eastern and Southern Africa (ESA)? Linear algorithms (LDA and
LR) predicted maize yield more closely to the observed yields compared with
nonlinear tools (NB, KNN, CART and SVM) under the conditions of the
reported study. Overall, the LDA algorithm was the best tool, and SVM was
the worst algorithm in maize yield prediction.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123400031/2021/02/24/evaluating-machine-learning-algorithms-for-predicting-maize-yield-under-conservation-agriculture-in-eastern-and-southern-africa>
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Prospects and constraints in smallholder farmers' adoption of multiple soil
carbon enhancing practices in Western Kenya
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398240/2021/02/24/prospects-and-constraints-in-smallholder-farmers-adoption-of-multiple-soil-carbon-enhancing-practices-in-western-kenya>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectPrefsTemp?Redirect=https://cell.com/heliyon/retrieve/pii/S2405844020300712?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2405844020300712%3Fshowall%3Dtrue&key=0e1223776809a4c532cb86b9f47bbd99ea1a9953>
- Today, 6:40 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398240/2021/02/24/prospects-and-constraints-in-smallholder-farmers-adoption-of-multiple-soil-carbon-enhancing-practices-in-western-kenya>
Kanyenji, G.M., Oluoch-Kosura, W., Onyango, C.M. & Ng'ang'a, S.K. 2020.
Heliyon. 6 (3). Article number e03226.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398240/2021/02/24/prospects-and-constraints-in-smallholder-farmers-adoption-of-multiple-soil-carbon-enhancing-practices-in-western-kenya>
https://doi.org/10.1016/j.heliyon.2020.e03226
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This study analyses the factors that influence the probability and extent
of adoption of soil carbon enhancing practices in Western Kenya utilizing
plot-level information, socioeconomic characteristics and external
supporting factors.The results indicate that the probability and extent of
adoption of soil carbon enhancing practices are influenced by plot-level
characteristics, literacy level, access to agricultural credit,
agricultural group membership, participation in the market, and gender of
the household.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123398240/2021/02/24/prospects-and-constraints-in-smallholder-farmers-adoption-of-multiple-soil-carbon-enhancing-practices-in-western-kenya>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123398240>
Cover crops as a tool to reduce reliance on intensive tillage and nitrogen
fertilization in conventional arable cropping systems.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399103/2021/02/24/cover-crops-as-a-tool-to-reduce-reliance-on-intensive-tillage-and-nitrogen-fertilization-in-conventional-arable-cropping-systems>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/articleSelectSinglePerm?Redirect=https://www.sciencedirect.com/science/article/pii/S0378429019315412?via%3Dihub&key=4f93a5a46d2ff76e6af9c704c285cafcff190bfe>
- Today, 5:22 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399103/2021/02/24/cover-crops-as-a-tool-to-reduce-reliance-on-intensive-tillage-and-nitrogen-fertilization-in-conventional-arable-cropping-systems>
Wittwer, R.A. & van der Heijden, M.G.A. 2020. Field Crops Research. 249.
Article number 107736.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399103/2021/02/24/cover-crops-as-a-tool-to-reduce-reliance-on-intensive-tillage-and-nitrogen-fertilization-in-conventional-arable-cropping-systems>
https://doi.org/10.1016/j.fcr.2020.107736
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This paper tested whether cover crops are a suitable management tool to
reduce fertilizer input, tillage intensity and herbicide use in Swiss
arable cropping systems. They compared the effects of four different cover
crop treatments (fallow, radish, subterranean clover and hairy vetch) on
maize at two fertilization levels combined with three levels of tillage
intensity. They used spectral NVDI imagery to assess vegetation. Cover
crops on average increased yields by 12 % (+7 % to +20 %) and cover crop
effects depended on tillage intensity, fertilization level and cover crop
treatment for most of the assessed maize parameters. Hairy vetch was the
best cover crop. Spectral imagery analysis showed that legume cover crops
compensated for delayed N availability in reduced and no tillage systems
and cover crops contributed to enhanced N uptake and crop growth later in
the season. They  provide evidence that cover crop based cropping systems
can be used to reduce synthetic inputs and tillage without compromising
yield.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123399103/2021/02/24/cover-crops-as-a-tool-to-reduce-reliance-on-intensive-tillage-and-nitrogen-fertilization-in-conventional-arable-cropping-systems>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123399103>
Longitudinal analysis of a long-term conservation agriculture experiment in
Malawi and lessons for future experimental design.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396140/2021/02/24/longitudinal-analysis-of-a-long-term-conservation-agriculture-experiment-in-malawi-and-lessons-for-future-experimental-design>
From www.cambridge.org
<https://www.cambridge.org/core/journals/experimental-agriculture/article/longitudinal-analysis-of-a-longterm-conservation-agriculture-experiment-in-malawi-and-lessons-for-future-experimental-design/1497F7297CCDDCC33180F03DA6EBFE16>
- Today, 10:49 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396140/2021/02/24/longitudinal-analysis-of-a-long-term-conservation-agriculture-experiment-in-malawi-and-lessons-for-future-experimental-design>
Lark, R.M, Ligowe, I.S., Thierfelder, C., Magwero, N., Namaona, W., Njira,
K., Sandram, I., Chimungu, J.G & Naliivata, P.C. 2020. Experimental
Agriculture. 56 (4) 506-527.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396140/2021/02/24/longitudinal-analysis-of-a-long-term-conservation-agriculture-experiment-in-malawi-and-lessons-for-future-experimental-design>
https://doi.org/10.1017/S0014479720000125
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This long-term study used analysis of 10 years of data to look at the
effects of variation in seasons between treatments on yield of maize. There
was a strong treatment effect between rotational treatments and other
treatments and a weak effect between intercropping and monocropping. There
was no evidence for an overall advantage of systems where residues are
retained (in combination with direct seeding or planting basins) over
conventional management with respect to maize yield. Also showed that
significant treatment effects are unlikely with just 4 replicates and
suggest designing trials that have less treatments and more replicates.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123396140/2021/02/24/longitudinal-analysis-of-a-long-term-conservation-agriculture-experiment-in-malawi-and-lessons-for-future-experimental-design>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123396140>
Microbiomes and Pathogen Survival in Crop Residues, an Ecotone Between
Plant and Soil.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123351091/2021/02/22/microbiomes-and-pathogen-survival-in-crop-residues-an-ecotone-between-plant-and-soil>
From doi.org <https://doi.org/10.1094/PBIOMES-02-19-0010-RVW> - February
22, 2:33 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123351091/2021/02/22/microbiomes-and-pathogen-survival-in-crop-residues-an-ecotone-between-plant-and-soil>
Kerdraon, L., Laval, V. & Suffert, F. 2019. Phytobiomes Journal. 3 (4)
246-255.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123351091/2021/02/22/microbiomes-and-pathogen-survival-in-crop-residues-an-ecotone-between-plant-and-soil>
https://doi.org/10.1094/PBIOMES-02-19-0010-RVW
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This is an interesting paper that looks at the role of residues
incorporated or left on the soil surface on the the microbial communities
including those related to plant diseases. This review focuses on
microbiomes associated with residues within the context of other microbial
habitats in cereal-producing agroecosystems such as phyllosphere or
rhizosphere. They connect the residue microbiome with the survival of
residue-borne fungal plant pathogens, thus combining knowledge in microbial
ecology and epidemiology, two disciplines still not sufficiently connected.
They discuss how the interactions between the microbial communities and the
pathogens present on residues could be used.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123351091/2021/02/22/microbiomes-and-pathogen-survival-in-crop-residues-an-ecotone-between-plant-and-soil>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4123351091>
Global Uptake of Conservation Agriculture and the Impact on Water-Related
Ecosystem Services.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349915/2021/02/22/global-uptake-of-conservation-agriculture-and-the-impact-on-water-related-ecosystem-services>
From www.oxfordhandbooks.com
<https://www.oxfordhandbooks.com/view/10.1093/oxfordhb/9780190669799.001.0001/oxfordhb-9780190669799-e-59>
- February 22, 1:45 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349915/2021/02/22/global-uptake-of-conservation-agriculture-and-the-impact-on-water-related-ecosystem-services>
Kassam, A. & Coates, D. 2019. The Global uptake of Conservation Agriculture
and the Impact on Water-related Ecosystem Services. The Oxford Handbook of
Food, Water and Society. 23 pages.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349915/2021/02/22/global-uptake-of-conservation-agriculture-and-the-impact-on-water-related-ecosystem-services>
https://doi.org/10.1093/oxfordhb/9780190669799.013.59
*Cornell Conservation Agriculture Group (soilhealth.org)*s insight:
This paper looks at the use of CA to overcome soil erosion and land
degradation leading to loss of Eco-system services required to maintain
food security. It includes an estimate of the global adoption of CA of 180
Mha (12.5% of annual cropland) and increasing annually at 10 Mha. The paper
looks at water-related services and food security, shows that CA to meet,
or exceed, most of the current shortfall in projected global agricultural
water demand by 2050.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4123349915/2021/02/22/global-uptake-of-conservation-agriculture-and-the-impact-on-water-related-ecosystem-services>

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