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From:
Amir Kassam <[log in to unmask]>
Reply To:
Amir Kassam <[log in to unmask]>
Date:
Sat, 2 Jul 2022 15:18:17 +0100
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*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF*

*for sustainable agriculture, land use and ecosystem management*

Dear Subscribers,

Please see herebelow the July 2022 Cornell CA research newsletter.

Thank you Professor Peter 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

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: Fri, 1 Jul 2022 at 16:06
Subject: July 2022 Cornell CA research newsletter
To: Amir Kassam <[log in to unmask]>

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

Conservation Agriculture in Semi-Arid Zimbabwe: A Promising Practice to
Improve Finger Millet (Eleusine coracana Gaertn.) Productivity and Soil
Water Availability in the short term
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673242/2022/07/01/conservation-agriculture-in-semi-arid-zimbabwe-a-promising-practice-to-improve-finger-millet-eleusine-coracana-gaertn-productivity-and-soil-water-availability-in-the-short-term>
From www.mdpi.com <https://www.mdpi.com/2077-0472/12/5/622> - Today, 11:01
AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673242/2022/07/01/conservation-agriculture-in-semi-arid-zimbabwe-a-promising-practice-to-improve-finger-millet-eleusine-coracana-gaertn-productivity-and-soil-water-availability-in-the-short-term>
Mbanyele, V., Mtambanengwe, F., Nezomba, H., Rurinda, J. & Mapfumo, P.
2022. Agriculture. 12 (5) Article number 622.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673242/2022/07/01/conservation-agriculture-in-semi-arid-zimbabwe-a-promising-practice-to-improve-finger-millet-eleusine-coracana-gaertn-productivity-and-soil-water-availability-in-the-short-term>
https://doi.org/10.3390/agriculture12050622
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
With more dry spells in Southern Africa in recent years, the interest in CA
to secure crop yields in rainfed areas has grown. This study in Zimbabwe
looked at the effects of CA on finger millets growth, yield and water-use
efficiency. There were 5 treatments 1) conventional tillage (CT), 2) CT +
mulch (partial CA1), 3) reduced tillage only (partial CA2), 4) reduced
tillage + mulching (partial CA3) and 5) reduced tillage + mulching +
intercropping (full CA). All mulched treatments had 15-32% more soil water
content over the two growing seasons compared to the control resulting in
better finger millet yields. The full CA treatment achieved the best finger
millet grain yield. They concluded that CA, particularly when practiced in
full, was more effective at offsetting the water limitations imposed by
intra-seasonal dry spells on finger millet and significantly improved
productivity.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673242/2022/07/01/conservation-agriculture-in-semi-arid-zimbabwe-a-promising-practice-to-improve-finger-millet-eleusine-coracana-gaertn-productivity-and-soil-water-availability-in-the-short-term>
<https://www.scoop.it/share/post/twitter/4133673242?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133673242?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133673242?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133673242>
Long Term Effects of Tillage–Crop Rotation Interaction on Soil Organic
Carbon Pools and Microbial Activity on Wheat-Based System in Mediterranean
Semi-Arid Region.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673138/2022/07/01/long-term-effects-of-tillage-crop-rotation-interaction-on-soil-organic-carbon-pools-and-microbial-activity-on-wheat-based-system-in-mediterranean-semi-arid-region>
From www.mdpi.com <https://www.mdpi.com/2073-4395/12/4/953> - Today, 10:39
AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673138/2022/07/01/long-term-effects-of-tillage-crop-rotation-interaction-on-soil-organic-carbon-pools-and-microbial-activity-on-wheat-based-system-in-mediterranean-semi-arid-region>
Jaziri, S., Mohamed, H.C., Rezgui, M., Labidi, S., Souissi, A., Rezgui, M.,
Barbouchi, M., Annabi, M. & Bahri, H. 2022. Agronomy. 12 (4) Article number
953.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673138/2022/07/01/long-term-effects-of-tillage-crop-rotation-interaction-on-soil-organic-carbon-pools-and-microbial-activity-on-wheat-based-system-in-mediterranean-semi-arid-region>
https://doi.org10.3390/agronomy12040953
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study collected data from a long-term experiment in a semi-arid region
of Tunisia. Their results showed that no-till (NT) increased soil organic
carbon, soil microbial biomass carbon (SMBC), arbuscular mycorrhizal fungal
root (AMF) colonization and soil microbial respiration in the 0-20 cm
topsoil compared to CT. In addition the rotations Faba bean-Durum
wheat-Barley and Faba bean-Durum wheat increased SMBC, AMF and respiration.
They conclude that the current results highlight the benefit of adoption of
minimum or (NT) combined with crop diversification on soil health.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673138/2022/07/01/long-term-effects-of-tillage-crop-rotation-interaction-on-soil-organic-carbon-pools-and-microbial-activity-on-wheat-based-system-in-mediterranean-semi-arid-region>
<https://www.scoop.it/share/post/twitter/4133673138?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133673138?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133673138?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133673138>
Questions and Research Needs in the Adoption of Conservation Agriculture in
the Mediterranean Area
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670963/2022/07/01/questions-and-research-needs-in-the-adoption-of-conservation-agriculture-in-the-mediterranean-area>
From www.mdpi.com <https://www.mdpi.com/2073-4395/12/5/1112> - Today, 10:02
AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670963/2022/07/01/questions-and-research-needs-in-the-adoption-of-conservation-agriculture-in-the-mediterranean-area>
Rinaldi, M., Almeida, A.S., Alvaro, F.J., Annabi, M., Annicchiarico, P.,
Cantero, M.C., Cruz, M.G., D'Alessandro, G. Gitsopoulos, T., Marandola, D.,
Marguerite, M., Lamouchi, S., Latati, M., Lopez, F.A., Moussadek, R. &
Pecetti, L. 2022. Agronomy. 12 (5). Article number 1112.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670963/2022/07/01/questions-and-research-needs-in-the-adoption-of-conservation-agriculture-in-the-mediterranean-area>
https://doi.org/10.3390/agronomy12051112
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This review article looks at the challenges and research needs for adoption
of CA and improvement of crop-soil water conditions in Southern Europe and
Northern Africa. This multidisciplinary and participatory study was the
basis for the project "Research-based participatory approaches for adopting
conservation agriculture in the Mediterranean Area-CAMA". There is an
emphasis on smallholder farms. It uses a socio-economic analysis of the
reasons that restrict the CA diffusion and legume crop improvement as a
component of improved CA cropping systems, and the need for a network of
long-term experiments on CA and soil characteristic modification.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670963/2022/07/01/questions-and-research-needs-in-the-adoption-of-conservation-agriculture-in-the-mediterranean-area>
<https://www.scoop.it/share/post/twitter/4133670963?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133670963?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133670963?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133670963>
Weed interference and wheat productivity in a conservation
agriculture-based maize-wheat-mungbean system
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650382/2022/06/30/weed-interference-and-wheat-productivity-in-a-conservation-agriculture-based-maize-wheat-mungbean-system>
From www.cropandweed.com
<https://www.cropandweed.com/archives/?year=2022&vol=18&issue=1&article_id=1540>
- June 30, 4:17 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650382/2022/06/30/weed-interference-and-wheat-productivity-in-a-conservation-agriculture-based-maize-wheat-mungbean-system>
Ghosh, S., Das, T.K., Shivay, Y.S., Bandyopadhyay, K.K., Bhatia, A. &
Yeasin, Md. 2022. Journal of Crop and Weed. 18 (1) 111-119.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650382/2022/06/30/weed-interference-and-wheat-productivity-in-a-conservation-agriculture-based-maize-wheat-mungbean-system>
https://doi.org/10.22271/09746315.2022.v18.i1.1540
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study from India looked at the effects of CA on weeds and yield of a
maize-wheat-mungbean system. They showed that CA-based practices with
residue retention resulted in significant reduction of weed growth and led
to higher yield as well as economic benefits when compared to conventional
tillage (CT). The plots under permanent broad bed with residue and 100% N
(PBB+R+100N) resulted in significant reduction of weed density and biomass
and led to ~27% higher grain yield of wheat compared to CT.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650382/2022/06/30/weed-interference-and-wheat-productivity-in-a-conservation-agriculture-based-maize-wheat-mungbean-system>
<https://www.scoop.it/share/post/twitter/4133650382?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133650382?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133650382?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133650382>
Point placement of late vegetative stage nitrogen splits increase the
productivity, N-use efficiency and profitability of tropical maize under
decade long conservation agriculture
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649592/2022/06/30/point-placement-of-late-vegetative-stage-nitrogen-splits-increase-the-productivity-n-use-efficiency-and-profitability-of-tropical-maize-under-decade-long-conservation-agriculture>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S116103012100188X> - June 30,
4:03 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649592/2022/06/30/point-placement-of-late-vegetative-stage-nitrogen-splits-increase-the-productivity-n-use-efficiency-and-profitability-of-tropical-maize-under-decade-long-conservation-agriculture>
Nayak, H.S., Parihar, C.M., Mandal, B.N., Patra, K., Jat, S.L., Singh, R.,
Singh, V.K., Jat, M.L., Garnaik, S., Nayak, J. & Abdallah, A.M. 2022.
European Journal of Agronomy. 133. Article number 126417
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649592/2022/06/30/point-placement-of-late-vegetative-stage-nitrogen-splits-increase-the-productivity-n-use-efficiency-and-profitability-of-tropical-maize-under-decade-long-conservation-agriculture>
https://doi.org/10.1016/j.eja.2021.126417
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study looks at various nitrogen placement methods in CA systems with
residue retention in order to increase N-use efficiency. The study assessed
the impact of three N placement methods, i.e., NPM1: both the N splits were
surface band placed, NPM2: the first split of N was sub-surface point
placed and second N split (late vegetative stage) was surface band applied,
and NPM3: both the N splits were sub-surface point placed, under
4-long-term tillage and residue management (+R) options, i.e., permanent
raised bed (PB+R), zero-till flat (ZT+R) conventional till flat (CT+R) and
first time zero till flat sowing of the crop on last 10-year fallow land
(FZT+R), in an on-going long-term study (since 2008) in maize for three
consecutive years (2018–2020). Sub-surface point placement of both the N
splits (NPM3) increased maize grain yield by 4.7, 7.0 and 6.0% (3-years
mean basis) compared to NPM2, under CA-based PB, ZT, and FZT plots,
respectively.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649592/2022/06/30/point-placement-of-late-vegetative-stage-nitrogen-splits-increase-the-productivity-n-use-efficiency-and-profitability-of-tropical-maize-under-decade-long-conservation-agriculture>
<https://www.scoop.it/share/post/twitter/4133649592?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133649592?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133649592?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133649592>
Maize–legume systems under conservation agriculture
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648574/2022/06/30/maize-legume-systems-under-conservation-agriculture>
From doi.org <https://doi.org/10.1002/agj2.20925> - June 30, 3:41 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648574/2022/06/30/maize-legume-systems-under-conservation-agriculture>
Bitew, Y., Derebe, B., Worku, A. & Chakelie, G. 2022. Agronomy Journal. 114
(1) 173-186.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648574/2022/06/30/maize-legume-systems-under-conservation-agriculture>
https://doi.org/10.1002/agj2.20925
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This on-farm study in sub-Saharan Africa compared CA based maize-legume
cropping systems and CT on soil properties and yield. Treatments were: CT
with monoculture maize (CT-M), CA with monoculture maize (CA-M), CA-based
maize–common bean (Phaseolus vulgaris L.) intercropping (CA-M+CB), CA-based
maize–cowpea (Vigna unguiculata L.) intercropping (CA-M+CP) and CA-based
maize–common bean rotation (CA-M–CB). Weed infestation in CA-based
maize–legume cropping systems reduced over the years. CA-based maize–legume
cropping systems increased soil organic matter, total nitrogen, available
phosphorus (Ava.P), and soil water infiltration rate over CT systems.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648574/2022/06/30/maize-legume-systems-under-conservation-agriculture>
<https://www.scoop.it/share/post/twitter/4133648574?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133648574?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133648574?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133648574>
Factors affecting multiple climate change adaptation practices of
smallholder farmers in lower Eastern
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649416/2022/06/30/factors-affecting-multiple-climate-change-adaptation-practices-of-smallholder-farmers-in-lower-eastern>
From www.ajol.info <https://www.ajol.info/index.php/jae/article/view/217379>
- June 30, 3:13 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649416/2022/06/30/factors-affecting-multiple-climate-change-adaptation-practices-of-smallholder-farmers-in-lower-eastern>
Mogaka, H.R. & Murithi, L.N. 2021. Journal of Agricultural Extension. 25
(4) 92-100.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649416/2022/06/30/factors-affecting-multiple-climate-change-adaptation-practices-of-smallholder-farmers-in-lower-eastern>
https://doi.org/10.4314/jae.v25i4.10
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study from Eastern Kenya, looked at various climate change adaptation
practices of smallholder farmers in terms of socioeconomic and
institutional factors. Data was collected from 384 small-scale farms.
Gender positively and significantly influenced adoption of conservation
agriculture and water harvesting. Distance to markets positively or
negatively influenced uptake of all the technologies. Age and distance to
nearest markets should be considered during technology dissemination. The
study recommends agricultural policy reforms that aim at designing
incentive programmes that address the socioeconomic and institutional
issues related to uptake of adaptation practices as well as encouraging
off-farm diversification.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649416/2022/06/30/factors-affecting-multiple-climate-change-adaptation-practices-of-smallholder-farmers-in-lower-eastern>
<https://www.scoop.it/share/post/twitter/4133649416?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133649416?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133649416?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133649416>
Economic and environmental studies of conservation agriculture on dryland
in Central Lombok, Indonesia
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648403/2022/06/30/economic-and-environmental-studies-of-conservation-agriculture-on-dryland-in-central-lombok-indonesia>
From validate.perfdrive.com
<[log in to unmask]&ssm=38200366869991547108727073936702&ssn=23fd18e2dd090c8cc8d007d872d47e015c225d413f5d-79bd-432b-83d324&sso=60d46027-84e6e327f434c42b737c360a53556b8164df7b032c71ea80&ssp=00076544421656604323165662212586165&ssq=36840121407377084539214073405279446668223&ssr=MjEyLjEyOS4xMS40Mg==&sst=Mozilla/5.0%20scpitspi-rs&ssv=&ssw=&ssx=W10=" target="_blank">https://validate.perfdrive.com/?ssa=5cf7e977-82ef-42a3-86d0-d87299ad4bf3&ssb=68919226746&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F1755-1315%2F913%2F1%2F012015&ssi=8ee7f395-8427-43e5-94d3-f96fd46fc417&[log in to unmask]&ssm=38200366869991547108727073936702&ssn=23fd18e2dd090c8cc8d007d872d47e015c225d413f5d-79bd-432b-83d324&sso=60d46027-84e6e327f434c42b737c360a53556b8164df7b032c71ea80&ssp=00076544421656604323165662212586165&ssq=36840121407377084539214073405279446668223&ssr=MjEyLjEyOS4xMS40Mg==&sst=Mozilla/5.0%20scpitspi-rs&ssv=&ssw=&ssx=W10=>
- June 30, 2:49 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648403/2022/06/30/economic-and-environmental-studies-of-conservation-agriculture-on-dryland-in-central-lombok-indonesia>
Lastariningsih, E., Sjah, T., Tanaya, I.G.L.P., Prasedya, E.S., Sunarwidhi,
A.L., Nufus, N.H. & Ariyana, M.D. 2021. IOP Conference Series: Earth and
Environmental Science. 913 (1) Article number 012015.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648403/2022/06/30/economic-and-environmental-studies-of-conservation-agriculture-on-dryland-in-central-lombok-indonesia>
https://doi.org/10.1088/1755-1315/913/1/012015
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This is a study from Indonesia analyzes the economic and environmental
impacts of conservation agriculture in maize. There are two comparisons; a)
application of manure, mulch of previous crop residue and legumes as cover
crop, and b) non-CA, chemical fertilizer, herbicide, no mulch and plants
only maize. Observations by researchers, farmers, and extension workers
were taken. Results show that CA with application of manure and mulch of
previous crop residues, economically was able to reduce the purchase of
herbicides and chemical fertilizer, save labor costs and time in plant
maintenance. CA also reduced air pollution, use less groundwater, and
increase SOM. Farmer income also increased.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133648403/2022/06/30/economic-and-environmental-studies-of-conservation-agriculture-on-dryland-in-central-lombok-indonesia>
<https://www.scoop.it/share/post/twitter/4133648403?forceAnonymous=1>
<https://www.scoop.it/share/post/facebook/4133648403?forceAnonymous=1>
<https://www.scoop.it/share/post/linkedin/4133648403?forceAnonymous=1>
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133648403>
Effect of Catch Crops and Tillage Systems on the Content of Selected
Nutrients in Spring Wheat Grain
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133672461/2022/07/01/effect-of-catch-crops-and-tillage-systems-on-the-content-of-selected-nutrients-in-spring-wheat-grain>
From www.mdpi.com <https://www.mdpi.com/2073-4395/12/5/1054> - Today, 10:48
AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133672461/2022/07/01/effect-of-catch-crops-and-tillage-systems-on-the-content-of-selected-nutrients-in-spring-wheat-grain>
Kwiatkowski, C.A., Harasim, E. & Klikocka-Wisniewska, O. 2022. Agronomy. 12
(5) Article number 1054.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133672461/2022/07/01/effect-of-catch-crops-and-tillage-systems-on-the-content-of-selected-nutrients-in-spring-wheat-grain>
https://doi.org/10.3390/agronomy12051054
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study from Poland looks at various cover crops and two tillage
systems, plough tillage (PT) and no-tiillage (NT) on spring wheat grain.
All the cover crops tested in this study contributed to an improvement in
the chemical composition of the soil used in the experiment (a significant
increase in humus, P and Mg content). Both the cover crops and the
conservation (no-tillage) system stimulated the activity of soil enzymes:
dehydrogenase and urease. The highest content of all the macro- and
micronutrients analyzed in wheat grain was found in the cover crop
treatments. Spring wheat responded favorably to the reduced tillage system
(no-tillage).
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133672461/2022/07/01/effect-of-catch-crops-and-tillage-systems-on-the-content-of-selected-nutrients-in-spring-wheat-grain>
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Nitrous oxide emissions and microbial communities during the transition to
conservation agriculture using N-enhanced efficiency fertilisers in a
semiarid climate
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673077/2022/07/01/nitrous-oxide-emissions-and-microbial-communities-during-the-transition-to-conservation-agriculture-using-n-enhanced-efficiency-fertilisers-in-a-semiarid-climate>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S0038071722001444> - Today,
10:26 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673077/2022/07/01/nitrous-oxide-emissions-and-microbial-communities-during-the-transition-to-conservation-agriculture-using-n-enhanced-efficiency-fertilisers-in-a-semiarid-climate>
Montoyo, M., Juhanson, J., Hallin, S., Garcia-Gutierrez, S. Garcia-Marco,
S., Vallejo, A., Recio, J. & Guardia, G. 2022. Soil Biology and
Biochemistry. 170. Article number 108687.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673077/2022/07/01/nitrous-oxide-emissions-and-microbial-communities-during-the-transition-to-conservation-agriculture-using-n-enhanced-efficiency-fertilisers-in-a-semiarid-climate>
https://doi.org/10.1016/j.soilbio.2022.108687
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study in semi-arid climates in Spain looked at nitrous oxide (NO)
emissions and related microbial communities and their interaction with
enhanced efficiency N-fertilizers in the transition year from tillage to
no-tillage. They looked at the effectiveness of DMPSA (nitrification
inhibitor) + NBPT (nitrogen stabilizer that slows the conversion of urea to
crop available nitrogen) applied with urea and calcium ammonium nitrate to
mitigate NO in rainfed barley. The highest N2O emissions were measured 49
days after harvest (immediately after a rainfall event that reactivated
soil microorganisms), for the treatment with fertiliser without inhibitor
combined with tillage. No tillage led to a higher abundance of
Cyanobacteria, Verrucomicrobia and Bacteroidetes and resulted in better
crop and higher plant density compared with tillage, thus increasing yields
and N use efficiency and decreasing N2O emissions. They concluded that
shifting from conventional tillage to no tillage enhanced the balance
between N use efficiency and yield-scaled N2O emissions in the first year
of conversion, particularity with the use of the double inhibitors.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133673077/2022/07/01/nitrous-oxide-emissions-and-microbial-communities-during-the-transition-to-conservation-agriculture-using-n-enhanced-efficiency-fertilisers-in-a-semiarid-climate>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133673077>
Comparison of mechanized conservation agriculture and conventional tillage
in Zambia: A short-term agronomic and economic analysis
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670890/2022/07/01/comparison-of-mechanized-conservation-agriculture-and-conventional-tillage-in-zambia-a-short-term-agronomic-and-economic-analysis>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S0167198722001003> - Today,
9:49 AM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670890/2022/07/01/comparison-of-mechanized-conservation-agriculture-and-conventional-tillage-in-zambia-a-short-term-agronomic-and-economic-analysis>
Omulo, G., Birner, R., Koller, K., Simunji, S. & Daum, T. 2022. Soil and
Tillage Research. 221. Article number 105414
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670890/2022/07/01/comparison-of-mechanized-conservation-agriculture-and-conventional-tillage-in-zambia-a-short-term-agronomic-and-economic-analysis>
https://doi.org/10.1016/j.still.2022.105414
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study explores the short-term agronomic and economic differences
between mechanized conventional tillage and mechanized CA in Zambia using a
4-wheel tractor. This on-farm study looked at 3 treatments: 1) disc
harrowing (DH) plus residue burning, 2) ripping tillage (RT), and 3)
no-till plus soil cover. Maize and soybean were the crops. It was for two
years with a wet and dry year. In the dry year for both maize and soybean
NT and RT had better yields than DH. But in a wet year, DH and RT yielded
better than NT for maize but not soybean. NT and RT showed better stands of
maize and soybeans at germination and maturity than DH. The study estimates
the gross margins for both crops in the wet and dry seasons and conclude
that the potential of mechanized CA among small and medium-scale farmers in
SSA is good.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133670890/2022/07/01/comparison-of-mechanized-conservation-agriculture-and-conventional-tillage-in-zambia-a-short-term-agronomic-and-economic-analysis>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133670890>
Zero tillage has important consequences for soil pore architecture and
hydraulic transport: A review
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649608/2022/06/30/zero-tillage-has-important-consequences-for-soil-pore-architecture-and-hydraulic-transport-a-review>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S0016706122002348> - June 30,
4:10 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649608/2022/06/30/zero-tillage-has-important-consequences-for-soil-pore-architecture-and-hydraulic-transport-a-review>
Wardack, D.L.R., Padia, F.N., Heer, M.I., Sturrock, C.J. & Mooney, S.J.
2022. Geoderma, 422. Article number 115927.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649608/2022/06/30/zero-tillage-has-important-consequences-for-soil-pore-architecture-and-hydraulic-transport-a-review>
https://doi.org/10.1016/j.geoderma.2022.115927
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This paper reviews 34 papers that illustrate ZT can influence porosity
depending on soil texture, pore size class, depth and time, and also
influence important transport mechanisms likely to impact the fate of
agrochemicals in soils. They suggest the value of a prospective examination
of an evolving ZT pore network both visually and functionally across
temporal and spatial scales. They also highlight the necessity for
standardised methodology to aid in future data compatibility and
quantitative analysis.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649608/2022/06/30/zero-tillage-has-important-consequences-for-soil-pore-architecture-and-hydraulic-transport-a-review>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133649608>
Conservation management decreases surface runoff and soil erosion
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649561/2022/06/30/conservation-management-decreases-surface-runoff-and-soil-erosion>
From linkinghub.elsevier.com
<https://linkinghub.elsevier.com/retrieve/pii/S2095633921000757> - June 30,
3:50 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649561/2022/06/30/conservation-management-decreases-surface-runoff-and-soil-erosion>
Du, X., Jian, J., Du, C. & Stewart, R.D. 2022. International Soil and Water
Conservation Research. 10 (2) 188-196.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649561/2022/06/30/conservation-management-decreases-surface-runoff-and-soil-erosion>
https://doi.org/10.1016/j.iswcr.2021.08.001
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study looked at various conservation management practices --
agroforestry, cover cropping, no-till, reduced tillage, and residue return
on surface runoff and erosion. Most of the data were collected from China,
USA, Europe, and Africa. They compared production with and without these
CMP's. They explored interactions between CMP practice type, soil texture,
surface runoff, and soil erosion. They then related changes in surface
runoff and soil erosion to 13 other soil health and agronomic indicators,
including soil organic carbon, soil aggregation, infiltration, porosity,
subsurface leaching, and cash crop yield. They found that across all CMP's,
surface runoff and erosion had respective mean decreases of 67% and 80%
compared with controls. Cover cropping provided the largest decreases in
erosion and surface runoff, thus emphasizing the importance of maintaining
continuous vegetative cover on soils.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649561/2022/06/30/conservation-management-decreases-surface-runoff-and-soil-erosion>
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<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133649561>
Precision Nutrient Rates and Placement in Conservation Maize-Wheat System:
Effects on Crop Productivity, Profitability, Nutrient-Use Efficiency, and
Environmental Footprints.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650225/2022/06/30/precision-nutrient-rates-and-placement-in-conservation-maize-wheat-system-effects-on-crop-productivity-profitability-nutrient-use-efficiency-and-environmental-footprints>
From www.mdpi.com <https://www.mdpi.com/2073-4395/11/11/2320> - June 30,
3:31 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650225/2022/06/30/precision-nutrient-rates-and-placement-in-conservation-maize-wheat-system-effects-on-crop-productivity-profitability-nutrient-use-efficiency-and-environmental-footprints>
Jat, R.K., Bijarniya, D., Kakraliya, S.K., Sapkota, T.B. Kakraliya, M. &
Jat, M.L. 2021. Agronomy. 11 (11) Article number 2320.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650225/2022/06/30/precision-nutrient-rates-and-placement-in-conservation-maize-wheat-system-effects-on-crop-productivity-profitability-nutrient-use-efficiency-and-environmental-footprints>
https://doi.org/10.3390/agronomy11112320
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This study from Eastern India looks at precision nutrient management under
the CA-based maize-wheat system. There are 7 treatment combinations
involving tillage (i) CT and Permanent beds (PB); and (ii) nutrient
management rates, application methods; farmer fertilizer (FFP), State
recommendations (SR), and precision nutrient management using a Nutrient
Expert tool (NE), and Greenseeker (GS) using broadcasting (B) or drilling
(D). The results showed that NE, NE+GS, and SR-based nutrient management
tactics with drilling improved crop yields, nutrient-use efficiency (NUE),
and economic profitability relative to NE, SR, and FFP broadcasting
methods. Maize-wheat system productivity and net returns under
NE+GS-drilling on PB were significantly higher by 31.2%, 49.7% compared to
FFP-broadcasting method, respectively. They conclude that PB-based
maize-wheat system together with precision nutrient management approaches
(NE+GS+drilling) can significantly increase crop yields, NUE, and
profitability while reducing the emission of greenhouse gases
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133650225/2022/06/30/precision-nutrient-rates-and-placement-in-conservation-maize-wheat-system-effects-on-crop-productivity-profitability-nutrient-use-efficiency-and-environmental-footprints>
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Long-term effects of tillage systems on liming efficiency, soil chemical
properties and wheat yield in Southern Brazil
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649387/2022/06/30/long-term-effects-of-tillage-systems-on-liming-efficiency-soil-chemical-properties-and-wheat-yield-in-southern-brazil>
From www.publish.csiro.au <https://www.publish.csiro.au/sr/SR21023> - June
30, 3:03 PM
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649387/2022/06/30/long-term-effects-of-tillage-systems-on-liming-efficiency-soil-chemical-properties-and-wheat-yield-in-southern-brazil>
Silva, S.R., Dos Santos, H.P., Lollato, R.P., Santi, A. & Fontaneli, R.S.
2021. Soil Research. 60 (6) 497-510.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649387/2022/06/30/long-term-effects-of-tillage-systems-on-liming-efficiency-soil-chemical-properties-and-wheat-yield-in-southern-brazil>
https://doi.org/10.1071/SR21023
*Cornell Conservation Agriculture Group (soilhealth.org)*'s insight:
This Brazilian study evaluated the long-term effects of soil management
systems (SMS) on liming efficiency, soil chemical properties and wheat
yield. The study was part of a long-term experiment started in 1986 in
Brazil and used data from 2008-2015 with lime added in 2008. There were two
CA systems, no-tillage (NT) and reduced tillage (RT) and two CT systems,
disk ploughing + disk harrowing and mouldboard ploughing + disk harrowing
annually. The NT system was the most sustainable with increases in SOC.
After liming, the CT systems were more effective that CA systems in
decreasing Al3+ toxicity and increasing soil pH and Ca2+ and Mg2+
concentrations at deeper soil layers. But the NT system had higher wheat
yields (+18%). The NT system was the least detrimental to soil organic
carbon, an important indicator of soil quality.
<https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4133649387/2022/06/30/long-term-effects-of-tillage-systems-on-liming-efficiency-soil-chemical-properties-and-wheat-yield-in-southern-brazil>
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