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Amir Kassam <[log in to unmask]>
Fri, 2 Sep 2022 11:10:57 +0100
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*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF*

*for sustainable agriculture, land use and ecosystem management*


Dear Subscribers,

Please see below the September 2022 Cornell Conservation Agriculture
Scoopit Research Update from Professor Peter Hobbs.

Thank you Professor Hobbs for sharing.

Apologies for any cross-posting.

*Amir Kassam *

*Moderator*

*Global CA-CoP*

e-mail: [log in to unmask]

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



*Regional CA websites:*

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

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

URL: http://caapas.org/

---------- Forwarded message ---------
From: Peter Hobbs <[log in to unmask]>
Date: Thu, 1 Sept 2022 at 14:44
Subject: September 2022 Cornell CA Research Update
To: Amir Kassam <[log in to unmask]>


Dear Amir: Here is our September 2022 Cornell 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 2022]
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag>
Conservation Agriculture Research Updates - September 2022
<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>

Cover crops and no-tillage reduce crop production costs and soil loss,
compensating for lack of short-term soil quality improvement in a maize and
soybean production system.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135086045/2022/08/26/cover-crops-and-no-tillage-reduce-crop-production-costs-and-soil-loss-compensating-for-lack-of-short-term-soil-quality-improvement-in-a-maize-and-soybean-production-system>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S0167198721003834> - Today,
11:19 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135086045/2022/08/26/cover-crops-and-no-tillage-reduce-crop-production-costs-and-soil-loss-compensating-for-lack-of-short-term-soil-quality-improvement-in-a-maize-and-soybean-production-system>
Jacobs, A.A., Evans, R.S., Allison, J.K., Garner, E.R., Kingery, W.L. &
McCulley, R.L. 2022. Soil and Tillage Research. 218. Article number 105310.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135086045/2022/08/26/cover-crops-and-no-tillage-reduce-crop-production-costs-and-soil-loss-compensating-for-lack-of-short-term-soil-quality-improvement-in-a-maize-and-soybean-production-system>
https://doi.org/10.1016/j.still.2021.105310
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
One issue this paper raises is that benefits from cover crops and
no-tillage may take years to improve soil health, but costs for cover crop
establishment and no-till equipment occur before benefits accrue. This
study measured soil properties, cash crop yield, and annual production
costs in a three-year maize /soybean study comparing a conservation system
to a conventional production system in Mississippi. The CS was compared
with five different levels of conservation systems, including a
conservation system with no-tillage and cover crops (no-till + cover). They
found a lack of consistent improvement of soil properties in the 3 years of
the experiment. Essentially more time is needed. The economic benefits of
substituting no-tillage and cover crops for expensive conventional inputs
were much greater than the modest soil property improvements.  The greatest
resource benefit from the conservation system was a reduction in estimated
soil loss, as mean soil loss in no-till and cover crop decreased by 86%
compared to the conventional system and makes the farming operations and
agroecosystems more resilient.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135086045/2022/08/26/cover-crops-and-no-tillage-reduce-crop-production-costs-and-soil-loss-compensating-for-lack-of-short-term-soil-quality-improvement-in-a-maize-and-soybean-production-system>
<https://www.scoop.it/share/post/twitter/4135086045?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4135086045?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4135086045?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135086045>
The influence of smartphone use on conservation agricultural practice:
Evidence from the extension of rice-green manure rotation system in China.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135056567/2022/08/25/the-influence-of-smartphone-use-on-conservation-agricultural-practice-evidence-from-the-extension-of-rice-green-manure-rotation-system-in-china>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S0048969721076336> - August
25, 7:56 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135056567/2022/08/25/the-influence-of-smartphone-use-on-conservation-agricultural-practice-evidence-from-the-extension-of-rice-green-manure-rotation-system-in-china>
Li, F., Yang, P., Zhang, K., Yin, Y., Zhang, Y. & Yin, C. 2022. Science of
the Total Environment. 813. Article number 152555
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135056567/2022/08/25/the-influence-of-smartphone-use-on-conservation-agricultural-practice-evidence-from-the-extension-of-rice-green-manure-rotation-system-in-china>
https://doi.org/10.1016/j.scitotenv.2021.152555
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is an interesting article from China on the use of smartphones to
promote CA. They developed an integrated model to explain the scientific
question of how smartphone use influences farmers' adoption of CA — a
rice-green manure rotation system (RGRS). The sampled 934 respondents. They
showed that smartphones directly contribute to farmer adoption of CA
practices. They conclude that knowledge related to environmental
degradation and environmental services of RGRS can be imported into
smartphone Apps commonly used by farmers to increase information exposure,
raise environmental awareness and regulate farmer behavior.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135056567/2022/08/25/the-influence-of-smartphone-use-on-conservation-agricultural-practice-evidence-from-the-extension-of-rice-green-manure-rotation-system-in-china>
<https://www.scoop.it/share/post/twitter/4135056567?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4135056567?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4135056567?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135056567>
Changes in soil aggregate-associated organic carbon, enzymatic activity,
and biological pools under conservation agriculture based practices in
rice–wheat system.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054676/2022/08/25/changes-in-soil-aggregate-associated-organic-carbon-enzymatic-activity-and-biological-pools-under-conservation-agriculture-based-practices-in-rice-wheat-system>
From link.springer.com
<https://link.springer.com/article/10.1007/s13399-021-02144-y> - August 25,
2:04 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054676/2022/08/25/changes-in-soil-aggregate-associated-organic-carbon-enzymatic-activity-and-biological-pools-under-conservation-agriculture-based-practices-in-rice-wheat-system>
Sharma, S., Vashisht, B.B., Singh, P. & Singh, Y. 2022. Biomass Conversion
and Biorefinery. On-line publication.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054676/2022/08/25/changes-in-soil-aggregate-associated-organic-carbon-enzymatic-activity-and-biological-pools-under-conservation-agriculture-based-practices-in-rice-wheat-system>
https://doi.org/10.1007/s13399-021-02144-y
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study looks at tillage intensity, crop residue management and green
manure (GM Sesbania) on SOC within micro- and macro-aggregates after 6
years of growing rice-wheat in India. The plot treatments included ZT and
CT with and without different % of residues and with and without GM. The ZT
with 100% rice residue  (ZTWR100) significantly increased soil moisture
retention compared to CT w/o residue (CTWR0) and also increased the
dehydrogenase (DHA), cellulase, and β-glucosidase activities and the easily
extractable glomalin (EEG)- and total glomalin (TG)-related soil protein
compared with the CTWR0 treatment. Crop residue retention plus GM
significantly improved the proportion of total water-stable aggregates
(WSA), mean weight diameter (MWD), and aggregate ratio (AR), compared with
the treatments involving residue removal and no GM.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054676/2022/08/25/changes-in-soil-aggregate-associated-organic-carbon-enzymatic-activity-and-biological-pools-under-conservation-agriculture-based-practices-in-rice-wheat-system>
<https://www.scoop.it/share/post/twitter/4135054676?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4135054676?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4135054676?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135054676>
Impacts of the components of conservation agriculture on soil organic
carbon and total nitrogen storage: A global meta-analysis.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054567/2022/08/25/impacts-of-the-components-of-conservation-agriculture-on-soil-organic-carbon-and-total-nitrogen-storage-a-global-meta-analysis>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S0048969722039195> - August
25, 1:36 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054567/2022/08/25/impacts-of-the-components-of-conservation-agriculture-on-soil-organic-carbon-and-total-nitrogen-storage-a-global-meta-analysis>
Bohoussou, Y.N., Kou, Y.H., Yu, W.B., Lin, B.J., Virk, A.L., Zhao, X.,
Dang, Y.P. & Zhang, H.L. 2022. Science of the Total Environment. 842.
Article number 156822.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054567/2022/08/25/impacts-of-the-components-of-conservation-agriculture-on-soil-organic-carbon-and-total-nitrogen-storage-a-global-meta-analysis>
https://doi.org/10.1016/j.scitotenv.2022.156822
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This meta-analysis using 757 comparisons from 97 research articles looked
at the impacts  on nitrogen and CA practices on SOC and N content. They
found significant increases of SOC [21.39 % (CI = 15.16 to 28.64)] and TN
[54.34 % (CI = 26.19 to 96.69)] stock with CA practices compared to
conventional practices in the 0–15 cm soil depth. The impact of CA on SOC
and TN is reduced in 0–60 cm depths compared to surface soil depths due to
the limited input of crop residue deeper in the soil profile. Manure and
manure mixed with mineral-N led to greater SOC sequestration than mineral-N
alone. Where legume residue was used there was a decrease in C/N ratio.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054567/2022/08/25/impacts-of-the-components-of-conservation-agriculture-on-soil-organic-carbon-and-total-nitrogen-storage-a-global-meta-analysis>
<https://www.scoop.it/share/post/twitter/4135054567?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4135054567?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4135054567?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135054567>
Response of soil carbon fractions in a Haplic Cambisol to crop rotation
systems and residue management practices under no tillage in the Eastern
Cape, South Africa.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054045/2022/08/25/response-of-soil-carbon-fractions-in-a-haplic-cambisol-to-crop-rotation-systems-and-residue-management-practices-under-no-tillage-in-the-eastern-cape-south-africa>
From www.tandfonline.com
<https://www.tandfonline.com/doi/abs/10.1080/02571862.2021.1938261> - August
25, 11:20 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054045/2022/08/25/response-of-soil-carbon-fractions-in-a-haplic-cambisol-to-crop-rotation-systems-and-residue-management-practices-under-no-tillage-in-the-eastern-cape-south-africa>
Gura, I., Mnkeni, P.N.S., du Preez, C.C. & Barnard, J.H. 2021. South
African Journal of Plant and Soil. 38 (5) 372-380.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054045/2022/08/25/response-of-soil-carbon-fractions-in-a-haplic-cambisol-to-crop-rotation-systems-and-residue-management-practices-under-no-tillage-in-the-eastern-cape-south-africa>
https://doi.org/10.1080/02571862.2021.1938261
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
SOC is a major indicator of soil health but has a slow short-term response
to management, so this study investigated the short-term effects of crop
rotation and residue management under NT. There were 4 rotations involving
maize, soybean, wheat, and fallow. There was residue retention and removal
with crops sown using NT. Measures were SOC, microbial biomass carbon
(MBC), mineralisable carbon (Cmin) and particulate organic matter carbon
fractions (POM-C). Crop rotation systems significantly influenced Cmin and
POM-C fractions whereas residue management practices significantly affected
all the carbon fractions. Crop residue retention as opposed to its removal
enhanced all the carbon pools. The POM-C and Cmin fractions were more
sensitive to short-term CA management interventions than SOC and MBC, and
can be used for monitoring SOM changes and microbial activities.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054045/2022/08/25/response-of-soil-carbon-fractions-in-a-haplic-cambisol-to-crop-rotation-systems-and-residue-management-practices-under-no-tillage-in-the-eastern-cape-south-africa>
<https://www.scoop.it/share/post/twitter/4135054045?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4135054045?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4135054045?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135054045>
Conservation Tillage, Residue Management, and Crop Rotation Effects on Soil
Major and Micro-nutrients in Semi-arid Vertisols of India
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987329/2022/08/23/conservation-tillage-residue-management-and-crop-rotation-effects-on-soil-major-and-micro-nutrients-in-semi-arid-vertisols-of-india>
From link.springer.com
<https://link.springer.com/article/10.1007/s42729-020-00380-1> - August 23,
11:59 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987329/2022/08/23/conservation-tillage-residue-management-and-crop-rotation-effects-on-soil-major-and-micro-nutrients-in-semi-arid-vertisols-of-india>
Jayaraman, S., Sinha, N.K., Mohanty, M., Hati, K.M., Chaudhary, R.S.,
Shukla, A.K., Shirale, A.O., Neenu, S., Naorem, A.K., Rashmi, I., Biswas,
A.K., Patra, A.K., Srinivasa, R,C. & Dalal, R.C. 2021. Journal of Soil
Science and Plant Nutrition. 21 (1). 523-535.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987329/2022/08/23/conservation-tillage-residue-management-and-crop-rotation-effects-on-soil-major-and-micro-nutrients-in-semi-arid-vertisols-of-india>
https://doi.org/10.1007/s42729-020-00380-1
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper provides information on the combined impact of tillage, residue,
and cropping system on the major and micro-nutrient availability in the
rainfed farming systems in a vertisol in central India. There were two
tillage treatments, reduced tillage (RT) and CT; and 6 cropping systems as
sub-plots. After 4 cropping cycles soil samples were taken for macro- and
micro-nutrient status. The major and micro-nutrient concentrations were
higher in the surface layer (0-5cm) than subsurface layers, regardless of
tillage and cropping systems. Tillage and cropping systems had a
significant effect on major available nutrients (N, P, and K) at 0–5-cm
depth. The DTPA extractable Fe, Mn, Cu, and Zn concentrations exhibited
decreasing trends with increasing depth. The paper concludes that RT
practices, coupled with crop residue retention, positively affected major
and micro-nutrient distribution and availability in this soil.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987329/2022/08/23/conservation-tillage-residue-management-and-crop-rotation-effects-on-soil-major-and-micro-nutrients-in-semi-arid-vertisols-of-india>
<https://www.scoop.it/share/post/twitter/4134987329?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4134987329?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4134987329?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4134987329>
Soil Organic Carbon and Labile Carbon Pools Attributed by Tillage, Crop
Residue and Crop Rotation Management in Sweet Sorghum Cropping System
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986185/2022/08/23/soil-organic-carbon-and-labile-carbon-pools-attributed-by-tillage-crop-residue-and-crop-rotation-management-in-sweet-sorghum-cropping-system>
From www.mdpi.com <https://www.mdpi.com/2071-1050/12/22/9782> - August 23,
11:26 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986185/2022/08/23/soil-organic-carbon-and-labile-carbon-pools-attributed-by-tillage-crop-residue-and-crop-rotation-management-in-sweet-sorghum-cropping-system>
Malobane, M.E., Nciizah, A.D., Mudau, F.N. & Wakindiki, I.I.C. 2020.
Sustainability (Switzerland). 12 (22). 1-10.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986185/2022/08/23/soil-organic-carbon-and-labile-carbon-pools-attributed-by-tillage-crop-residue-and-crop-rotation-management-in-sweet-sorghum-cropping-system>
https://doi.org/10.3390/su12229782
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study looks at the impact of CA on SOC dynamics in sweet sorghum
systems in South Africa. They compared NT vs CT; two rotations,
sweet-sorghum/winter grazing vetch/sweet sorghum and sweet-sorghum/winter
fallow/sweet sorghum; three crop residue retention levels: 30%, 15% and 0%.
Tillage was the main factor that influenced SOC with NT increasing SOC more
than CT. Increased residue retention resulted in higher microbial biomass.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986185/2022/08/23/soil-organic-carbon-and-labile-carbon-pools-attributed-by-tillage-crop-residue-and-crop-rotation-management-in-sweet-sorghum-cropping-system>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4134986185>
Evaluation of two-wheel tractor attached seeders used in conservation
agriculture systems of Ethiopia
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985135/2022/08/23/evaluation-of-two-wheel-tractor-attached-seeders-used-in-conservation-agriculture-systems-of-ethiopia>
From doi.org <https://doi.org/10.13031/aim.202000334> - August 23, 11:03 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985135/2022/08/23/evaluation-of-two-wheel-tractor-attached-seeders-used-in-conservation-agriculture-systems-of-ethiopia>
Awoke, B.G., Baudron, F., Antille, D.L., Kebede, L., Anawte, D.A., Tikuneh,
D.B. & Aikins, K.A. 2020. ASABE 2020 Annual International Meeting. Omaha,
Nebraska. Paper number 2000334.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985135/2022/08/23/evaluation-of-two-wheel-tractor-attached-seeders-used-in-conservation-agriculture-systems-of-ethiopia>
https://doi.org/10.13031/aim.202000334
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is an interesting study on the utility of various two-wheel tractor
seeders for wheat and maize in Ethiopia. Seeders tested came from Brazil,
Bangladesh, China, India, and USA. Field operating capacity, fuel
consumption, and crop yield were evaluated over two years in two locations.
Fuel consumption was between 9.4 L ha-1 and 12.6 L ha-1 depending on
seeding depth. A ten-fold reduction in operating time was possible relative
to the non-mechanized conventional practice. Improved uniformity and timing
of planting resulted in yield increments of 29% and 22% for wheat and
maize, respectively. The Bangladeshi and Chinese equipment was best for
wheat. For maize, the John Morrison and VMP seeders outperformed all other
units. The paper recommends the possibility of manufacture of this
equipment locally to reduce costs and increase adoption.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985135/2022/08/23/evaluation-of-two-wheel-tractor-attached-seeders-used-in-conservation-agriculture-systems-of-ethiopia>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4134985135>
The impact of reduced tillage and distance to field margin on predator
functional diversity
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135081975/2022/08/26/the-impact-of-reduced-tillage-and-distance-to-field-margin-on-predator-functional-diversity>
From link.springer.com
<https://link.springer.com/article/10.1007/s10841-022-00370-x> - Today,
10:58 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135081975/2022/08/26/the-impact-of-reduced-tillage-and-distance-to-field-margin-on-predator-functional-diversity>
Jacobsen, S.K., Sigsgaard, L., Johansen, A.B., Thorup-Kristensen, K. &
Jensen, Per M. 2022. Journal of Insect Conservation. 26 (3) 491-501.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135081975/2022/08/26/the-impact-of-reduced-tillage-and-distance-to-field-margin-on-predator-functional-diversity>
https://doi.org/10.1007/s10841-022-00370-x
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper looks at the impact of agricultural intensification on
arthropods, especially ground-dwelling predators that are negatively
affected by tillage. They hypothesize that reducing soil disturbances
conserves arthropod populations in the field and reduces the for chemical
pest controls. They used pitfall traps in cereal fields with CT, Reduced
tillage (RT) and NT under CA management. Overall, the activity-density of
ground-dwelling predators was higher in fields with minimum soil
disturbance and generally declined with increased distance to semi-natural
habitats. Body size of beetles was also larger with less disturbance. The
results obtained in the present study show that soil disturbances
significantly influence arthropod abundance and diversity.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135081975/2022/08/26/the-impact-of-reduced-tillage-and-distance-to-field-margin-on-predator-functional-diversity>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135081975>
Zero Tillage, Residue Retention and System-Intensification with Legumes for
Enhanced Pearl Millet Productivity and Mineral Biofortification.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051838/2022/08/25/zero-tillage-residue-retention-and-system-intensification-with-legumes-for-enhanced-pearl-millet-productivity-and-mineral-biofortification>
From www.mdpi.com <https://www.mdpi.com/2071-1050/14/1/543> - August 25,
2:20 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051838/2022/08/25/zero-tillage-residue-retention-and-system-intensification-with-legumes-for-enhanced-pearl-millet-productivity-and-mineral-biofortification>
Faiz, M.A., Bana, R.S., Choudhary, A.K. Laing, A.M., Bansal, R., Bhatia,
A., Singh, Y.V., Kumar, V., Bamboriya, S.D., Padaria, R.N., Khaswan, S.L. &
Dabas, J.P.K. 2022. Sustainability (Switzerland) 14 (1). Article number
543.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051838/2022/08/25/zero-tillage-residue-retention-and-system-intensification-with-legumes-for-enhanced-pearl-millet-productivity-and-mineral-biofortification>
https://doi.org/10.3390/su14010543
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is a Pearl Millet (PM) based paper for low-irrigation, semi-arid areas
of North Indian Plains. The study looked at ZT with and without residue, ZT
and ZTR compared with CT using 3 PM cropping patterns that included,
chickpea, mungbean and PM fodder over 2 years. Comparisons were made for
yield, mineral biofortification and GHG emissions. Results showed a
significant increase in pearl millet yield attributes, grain and stover
productivity, nutrient uptake, and micronutrient biofortification in the
PM–CP–MB cropping system under ZTR relative to other treatment
combinations. On-farm trials confirmed the same result.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051838/2022/08/25/zero-tillage-residue-retention-and-system-intensification-with-legumes-for-enhanced-pearl-millet-productivity-and-mineral-biofortification>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135051838>
Impact of levels of residue retention on soil properties under conservation
agriculture in Vertisols of central India.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051702/2022/08/25/impact-of-levels-of-residue-retention-on-soil-properties-under-conservation-agriculture-in-vertisols-of-central-india>
From www.tandfonline.com
<https://www.tandfonline.com/doi/full/10.1080/03650340.2020.1836345> - August
25, 1:47 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051702/2022/08/25/impact-of-levels-of-residue-retention-on-soil-properties-under-conservation-agriculture-in-vertisols-of-central-india>
Kumawat, A., Vishwakarma, A.K., Wanjari, R.H., Sharma, N.K., Yadav, D.,
Kumar, D. & Biswas, A.K. 2022. Archives of Agronomy and Soil Science. 68
(3) 368-382.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051702/2022/08/25/impact-of-levels-of-residue-retention-on-soil-properties-under-conservation-agriculture-in-vertisols-of-central-india>
https://doi.org/10.1080/03650340.2020.1836345
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper looks at residue management that is difficult to manage in
modern agriculture without burning and can lead to late planting. This
paper looks at zero-till residue management on soil health parameters in a
maize-chickpea pattern in the black vertisols of India. After 4 years the
soil bulk density was reduced by 3.0–10.2% and volumetric moisture content
was improved by 10.2–19.3% at 0–10 cm soil depth in ZT with residue over
conventional tillage (CT). Organic carbon and labile carbon,  P and K,
total fungal and actinomycetes were also increased compared to CT at 0-10
cm soil depths.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135051702/2022/08/25/impact-of-levels-of-residue-retention-on-soil-properties-under-conservation-agriculture-in-vertisols-of-central-india>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135051702>
Tillage, crop rotation, residue management and biochar influence on soil
chemical and biological properties.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054099/2022/08/25/tillage-crop-rotation-residue-management-and-biochar-influence-on-soil-chemical-and-biological-properties>
From www.tandfonline.com
<https://www.tandfonline.com/doi/abs/10.1080/02571862.2021.1962421> - August
25, 11:31 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054099/2022/08/25/tillage-crop-rotation-residue-management-and-biochar-influence-on-soil-chemical-and-biological-properties>
Nyambo, P., Thengeni, B., Chiduza, C. & Araya, T. 2021. South African
Journal of Plant and Soil. 38 (5) 390-397.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054099/2022/08/25/tillage-crop-rotation-residue-management-and-biochar-influence-on-soil-chemical-and-biological-properties>
https://doi.org/10.1080/02571862.2021.1962421
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study looked at ways to replenish declining soil fertility. It
evaluated pH, EC, Exchangeable cations, microbial biomass carbon, total N
and C in a CA system. This study had three crop rotations, and 3 residue
treatments; residue retention, removal, and biochar amendment. Soil pH and
EC were not affected by these practices after 3 years. Magnesium and
potassium were significantly affected by tillage at 0–5 cm depth. At the
end of three years, CA resulted in net increases of total N, and C, and MBC
compared to conventional practices.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4135054099/2022/08/25/tillage-crop-rotation-residue-management-and-biochar-influence-on-soil-chemical-and-biological-properties>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4135054099>
Soil organic carbon and labile and recalcitrant carbon fractions attributed
by contrasting tillage and cropping systems in old and recent alluvial
soils of subtropical eastern India
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986454/2022/08/23/soil-organic-carbon-and-labile-and-recalcitrant-carbon-fractions-attributed-by-contrasting-tillage-and-cropping-systems-in-old-and-recent-alluvial-soils-of-subtropical-eastern-india>
From journals.plos.org
<https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0259645>
- August 23, 12:24 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986454/2022/08/23/soil-organic-carbon-and-labile-and-recalcitrant-carbon-fractions-attributed-by-contrasting-tillage-and-cropping-systems-in-old-and-recent-alluvial-soils-of-subtropical-eastern-india>
Rakesh, S., Sarkar, D., Sinha, A.K., Danish, S., Bhattacharya, P.M.,
Mukhopadhyay, P., Salmen, S.H., Ansari, M.J. & Data, R. 2021. Plos One. 16
(12).  Article number e0259645
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986454/2022/08/23/soil-organic-carbon-and-labile-and-recalcitrant-carbon-fractions-attributed-by-contrasting-tillage-and-cropping-systems-in-old-and-recent-alluvial-soils-of-subtropical-eastern-india>
https://doi.org/10.1371/journal.pone.0259645
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This farmer field trial in West Bengal, India looked at short-term impact
of contrasting tillage (ZT and CT) and cropping systems (rice–wheat and
rice–maize) on total organic carbon (TOC) and its fractions, after 4-years
of conservation agriculture (CA) in old and recent alluvial soils. Soils
samples were taken from 3 soil depths. Results showed that TOC and
fractions under rice–maize (RM) cropping system were significantly greater
(15–35%) than for rice–wheat (RW) as a result of higher residue biomass
addition. Zero-tillage (ZT) improved the C fractions by 10–20% over
conventional tillage (CT) in all aspects. TOC and its fractions were
observed to be greater under the ZT system in the topmost soil depths (0–5
and 5–10 cm), but the same system failed to improve these at 10–20 cm. They
conclude that  ZT under the RM system increases the turnover rates of C in
both soil types but the amount of clay influences the stabilization/storage
of C.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134986454/2022/08/23/soil-organic-carbon-and-labile-and-recalcitrant-carbon-fractions-attributed-by-contrasting-tillage-and-cropping-systems-in-old-and-recent-alluvial-soils-of-subtropical-eastern-india>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4134986454>
Management of Crop Residues for Improving Input Use Efficiency and
Agricultural Sustainability
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987209/2022/08/23/management-of-crop-residues-for-improving-input-use-efficiency-and-agricultural-sustainability>
From www.mdpi.com <https://www.mdpi.com/2071-1050/12/23/9808> - August 23,
11:37 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987209/2022/08/23/management-of-crop-residues-for-improving-input-use-efficiency-and-agricultural-sustainability>
Sarkar, S., Skalicky, M., Hossain, A., Brestic, M., Saha, S., Garai, S.,
Ray, K. & Brahmachari, K. 2020. Sustainability (Switzerland). 12 (23) 1-24.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987209/2022/08/23/management-of-crop-residues-for-improving-input-use-efficiency-and-agricultural-sustainability>
https://doi.org/10.3390/su12239808
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper reviews recent findings to understand and summarize the
different aspects of crop residue management, including the impact of the
residues on crop and soil health, natural resource recycling, and
strategies related to residue retention in farming systems. This is
important since modern agriculture results in higher yields of biomass that
then need to be managed for beneficial effects rather than improper systems
like burning. The authors suggest that suitable residue management
techniques  will fit well under existing farming system practices without
compromising the systems’ productivity and environmental sustainability.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134987209/2022/08/23/management-of-crop-residues-for-improving-input-use-efficiency-and-agricultural-sustainability>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4134987209>
Effects of Different Management Methods for Sunn-Hemp Cover Crop on Corn
Production in A No-Till System in Cambodia
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985213/2022/08/23/effects-of-different-management-methods-for-sunn-hemp-cover-crop-on-corn-production-in-a-no-till-system-in-cambodia>
From doi.org <https://doi.org/10.13031/aim.202000579> - August 23, 11:16 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985213/2022/08/23/effects-of-different-management-methods-for-sunn-hemp-cover-crop-on-corn-production-in-a-no-till-system-in-cambodia>
Hin, L., Buntong, B., Reyes, M.R., Hok, L., Lor, L., Tivet, F., Leng, V.,
Suos, V., Clemmons, H. & Kornecki, T.S. 2020. ASABE 2020 Annual
International Meeting. Omaha, Nebraska. Paper number 2000579.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985213/2022/08/23/effects-of-different-management-methods-for-sunn-hemp-cover-crop-on-corn-production-in-a-no-till-system-in-cambodia>
https://doi.org/10.13031/aim.202000579
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is a second paper from the ASABE conference in Nebraska. It reports
progress with CA in Cambodia. Adoption is slow at the moment because of low
engagement of local services for machinery. This also compared different
no-till seeders for maize. Sunn hemp was grown as a cover crop before
planting maize. Three main treatments were implemented with (i) sunn hemp
used as green manure crop and buried through tillage, (ii) sunn hemp
crimped by Cambodia made crimper, and (iii) sunn hemp crimped by USDA
crimper. Two different no-till seeders, the one-row Morrison seeder mounted
on a 19-hp Oggun tractor and a four-row Brazilian seeder mounted on 75-hp
John Deere tractor. The Brazilian seeder saved 50% seed and 80% of the
time. Corn yield was also higher. Crimped plots had higher yields than
disked plots. The conclude no-till seeders lead to higher corn yields.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4134985213/2022/08/23/effects-of-different-management-methods-for-sunn-hemp-cover-crop-on-corn-production-in-a-no-till-system-in-cambodia>
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