*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF* *for sustainable agriculture, land use and ecosystem management* Dear Subscribers, Please see below the November 2022 Cornell Conservation Agriculture Research Newsletter. 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: Tue, 1 Nov 2022 at 13:57 Subject: November 2022 Cornell CA Research Newsletter To: Amir Kassam <[log in to unmask]> Dear Amir: Here is our November 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 - November 2022] <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag> Conservation Agriculture Research Updates - November 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> Soil organic matter fractions in an Oxisol under tillage systems and winter cover crops for 26 years in the Brazilian subtropics. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137442755/2022/10/30/soil-organic-matter-fractions-in-an-oxisol-under-tillage-systems-and-winter-cover-crops-for-26-years-in-the-brazilian-subtropics> From www.scielo.br <http://www.scielo.br/j/brag/a/VD3C98LTVtd7Z7T6fjCrcjJ/?lang=en> - Today, 9:14 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137442755/2022/10/30/soil-organic-matter-fractions-in-an-oxisol-under-tillage-systems-and-winter-cover-crops-for-26-years-in-the-brazilian-subtropics> Amadori, C., Conceicao, P.C., Casali, C.A., dos SantosCanalli, L.B., Calegari, A. & Dieckow, J. 2022. Bragantia: Soil and Plant Nutrition article. 81. Article number e3622. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137442755/2022/10/30/soil-organic-matter-fractions-in-an-oxisol-under-tillage-systems-and-winter-cover-crops-for-26-years-in-the-brazilian-subtropics> https://doi.org/10.1590/1678-4499.20210352 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study aimed to assess after 26 years the long-term effect of conventional tillage (CT) and no-tillage (NT) combined with winter cover crops, black oat and oilseed radish, and fallow on C accumulation and stabilization in a clayey Oxisol in Southern Brazil. Soil samples were collected from 3 depths. NT had a higher percentage of macroaggregates and C stock in this size-class, and also higher C stock in bulk soil, free-POM and occluded-POM fractions than CT in 0-0.05 m depth due to higher input of biomass and minimum soil mobilization in NT. Oat and radish had higher C stock in macroaggregates than fallow in 0.05-0.10 m depth. They conclude that after 26 years of NT improved C accumulation and stabilization, mainly in the superficial layer. Also winter cover crops favored the formation and stability of macroaggregates. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137442755/2022/10/30/soil-organic-matter-fractions-in-an-oxisol-under-tillage-systems-and-winter-cover-crops-for-26-years-in-the-brazilian-subtropics> <https://www.scoop.it/share/post/twitter/4137442755?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137442755?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137442755?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137442755> Bacterial Communities in the Rhizosphere at Different Growth Stages of Maize Cultivated in Soil Under Conventional and Conservation Agricultural Practices. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430596/2022/10/29/bacterial-communities-in-the-rhizosphere-at-different-growth-stages-of-maize-cultivated-in-soil-under-conventional-and-conservation-agricultural-practices> From doi.org <https://doi.org/10.1128/spectrum.01834-21> - October 29, 5:21 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430596/2022/10/29/bacterial-communities-in-the-rhizosphere-at-different-growth-stages-of-maize-cultivated-in-soil-under-conventional-and-conservation-agricultural-practices> Navarro-Noya, Y.E., Chavez-Romero, Y., Hereira-Pacheco, S., Lorenzana, A.S de L., Govaerts, B., Verhulst, N. & Dendooven, L. 2022. Microbiology Spectrum. 10 (2) Article number 01834 <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430596/2022/10/29/bacterial-communities-in-the-rhizosphere-at-different-growth-stages-of-maize-cultivated-in-soil-under-conventional-and-conservation-agricultural-practices> https://doi.org/10.1128/spectrum.01834-21 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper looks at the effect of agricultural practices in the maize rhizosphere on soil bacterial communities in Mexico. Maize and bulk rhizosphere soil from conventional (CP) and CA practices were sampled at three growth stages and used 16S rRNAto assess bacterial diversity and community structure. Results showed that CA positively affected soil bacteria compared to CP. The bacterial community in the maize bulk soil resembled each other more than in the rhizosphere of CA and CP. Although agricultural practices did not alter the effect of the rhizosphere on the soil bacterial communities in the flowering and grain filling stage, they did in the vegetative stage. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430596/2022/10/29/bacterial-communities-in-the-rhizosphere-at-different-growth-stages-of-maize-cultivated-in-soil-under-conventional-and-conservation-agricultural-practices> <https://www.scoop.it/share/post/twitter/4137430596?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137430596?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137430596?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137430596> Ch 17. Conservation Agriculture: The Future of Indian Agriculture <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430291/2022/10/29/ch-17-conservation-agriculture-the-future-of-indian-agriculture> From www.taylorfrancis.com <https://www.taylorfrancis.com/chapters/edit/10.4324/9781003292487-21/conservation-agriculture-raj-gupta-abrol-sharma> - October 29, 4:10 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430291/2022/10/29/ch-17-conservation-agriculture-the-future-of-indian-agriculture> Gupta, R.K., Abrol, I.P. & Sharma, A.R. 2022. 11 pages. In. Sharma, A.R. (Ed). Conservation Agriculture in India: A Paradigm Shift for Sustainable Production. Routledge, London. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430291/2022/10/29/ch-17-conservation-agriculture-the-future-of-indian-agriculture> https://doi.org/10.4324/9781003292487-21 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This is last chapter in the book on CA in India, by Sharma, listed earlier. The authors indicate that CA has the potential to contribute to sustainability of food production and reversal of soil degradation in India. It also enhances the efficiency of applied inputs and optimizes land and water use. They also write that the CA approach has to be operationalized in an eco-regional or resource management domain framework and integrate the focus of research on short- and long-term resource use problems. CA also needs institutional innovations for organizing multi-disciplinary farmer participatory research teams that provide integrated solutions of regionally defined problems. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430291/2022/10/29/ch-17-conservation-agriculture-the-future-of-indian-agriculture> <https://www.scoop.it/share/post/twitter/4137430291?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137430291?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137430291?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137430291> Conservation Agriculture in India: A Paradigm Shift for Sustainable Production <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345323/2022/10/27/conservation-agriculture-in-india-a-paradigm-shift-for-sustainable-production> From www.routledge.com <https://www.routledge.com/Conservation-Agriculture-in-India-A-Paradigm-Shift-for-Sustainable-Production/Sharma/p/book/9781032273877> - October 27, 11:53 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345323/2022/10/27/conservation-agriculture-in-india-a-paradigm-shift-for-sustainable-production> Sharma, A.R. (Ed.). 2022. 370 pages and 17 chapters. Routledge. London. ISBN: 978-1-00-329248-7 <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345323/2022/10/27/conservation-agriculture-in-india-a-paradigm-shift-for-sustainable-production> https://www.routledge.com/Conservation-Agriculture-in-India-A-Paradigm-Shift-for-Sustainable-Production/Sharma/p/book/9781032273877# *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This is a new book published in 2022 that looks at many aspects of CA situation, adoption, management, and future outlook in India. The chapters cover the various aspects of crop management such as soil, water, nutrients, weeds, crop residues, machinery, and energy, in a range of environments, including irrigated and rainfed regions. The impact of climate change and the economic considerations behind the adoption of conservation agriculture are also discussed. There are 4 distinct sections as follows: Part I: Conservation Agriculture: Global Scenario and Status in India - 4 chapters Part II: Management Options for Higher Resource Use Efficiency -- 6 chapters Part III: Soil Health and Greenhouse Gas Emissions -- 4 chapters Part IV: Economics, Adoption, and Future of Conservation Agriculture -- 3 chapters. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345323/2022/10/27/conservation-agriculture-in-india-a-paradigm-shift-for-sustainable-production> <https://www.scoop.it/share/post/twitter/4137345323?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137345323?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137345323?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137345323> Ch 17. Building Resilience to Climate Change by Adopting Conservation Agriculture in the Smallholder Farming Systems <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300566/2022/10/26/ch-17-building-resilience-to-climate-change-by-adopting-conservation-agriculture-in-the-smallholder-farming-systems> From link.springer.com <https://link.springer.com/chapter/10.1007/978-981-16-6771-8_17> - October 26, 8:17 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300566/2022/10/26/ch-17-building-resilience-to-climate-change-by-adopting-conservation-agriculture-in-the-smallholder-farming-systems> Parwada, C., Chipomho, J., Mandumbu, R. 2022. In. Mupambwa, H.A., Nciizah, A.D., Nyambo, P., Muchara, B. & Gabriel, N.N (Eds.) Food Security for African Smallholder Farmers. Springer, Singapore. Pages 281-294. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300566/2022/10/26/ch-17-building-resilience-to-climate-change-by-adopting-conservation-agriculture-in-the-smallholder-farming-systems> https://doi.org/10.1007/978-981-16-6771-8_17 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This chapter 17 in the book "Food Security for African Smallholder Farmers" was selected to highlight the importance of CA adoption to help mitigate climate change in Southern Africa. Crop yields in the smallholder sector have continued to decline, and farmers whose livelihoods rely on agriculture are poor and food-insecure. This chapter provides a review on how the farmers can build resilience to climate change through adoption of conservation agriculture (CA). Conservation agriculture has several positive attributes, which enable crop productivity in semi-arid regions of southern Africa. Among other advantages, CA maintains or improves soil structure; reduces soil exposure to water and wind erosion; increases water infiltration and reduces loss through evaporation. Minimum soil disturbance slows organic matter breakdown and mineralization resulting in organic carbon build-up. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300566/2022/10/26/ch-17-building-resilience-to-climate-change-by-adopting-conservation-agriculture-in-the-smallholder-farming-systems> <https://www.scoop.it/share/post/twitter/4137300566?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137300566?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137300566?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137300566> Can no-till restore soil organic carbon to levels under natural vegetation in a subtropical and tropical Typic Quartzipisamment? <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300004/2022/10/26/can-no-till-restore-soil-organic-carbon-to-levels-under-natural-vegetation-in-a-subtropical-and-tropical-typic-quartzipisamment> From doi.org <https://doi.org/10.1002/ldr.3822> - October 26, 4:57 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300004/2022/10/26/can-no-till-restore-soil-organic-carbon-to-levels-under-natural-vegetation-in-a-subtropical-and-tropical-typic-quartzipisamment> de Oliveira Ferreira, A., de Moraes Sa, J.C., Rattan, L., Jorge Carneiro Amado, T., Massao Inagaki, T., Briedis, C. & Tivet, F. 2021. Land Degradation and Development. 32 (4) 1742-1750. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300004/2022/10/26/can-no-till-restore-soil-organic-carbon-to-levels-under-natural-vegetation-in-a-subtropical-and-tropical-typic-quartzipisamment> https://doi.org/10.1002/ldr.3822 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study looks at CA as a way to restore degraded sandy soils in Brazil. This study aimed at assessment of the recovery of SOC stocks in the soil profile (0–1.0 m depth) in a Typic Quartzipisamment in subtropical and tropical climates over 20 years, in comparison with the neighboring soil under native vegetation (NV). SOC content was determined by the dry combustion method using an elemental C and N analyzer. Soil C stock was calculated based on the equivalent soil mass. Approximately 31 and 23% of the SOC stock was stored in the surface at 0–0.20 m, compared with 69 and 77% in 0.20–1.0 m layer of a Typic Quartzipisamment with high and low/medium input of crop residues, respectively. They conclude that NT with high addition of biomass-C can restore these sandy soils. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137300004/2022/10/26/can-no-till-restore-soil-organic-carbon-to-levels-under-natural-vegetation-in-a-subtropical-and-tropical-typic-quartzipisamment> <https://www.scoop.it/share/post/twitter/4137300004?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137300004?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137300004?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137300004> Combined Effect of Disc Coulters and Operational Speeds on Soil Disturbance and Crop Residue Cutting under No-Tillage System in Soil Bin. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137252453/2022/10/25/combined-effect-of-disc-coulters-and-operational-speeds-on-soil-disturbance-and-crop-residue-cutting-under-no-tillage-system-in-soil-bin> From op.niscair.res.in <http://op.niscair.res.in/index.php/JSIR/article/view/40333> - October 25, 5:18 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137252453/2022/10/25/combined-effect-of-disc-coulters-and-operational-speeds-on-soil-disturbance-and-crop-residue-cutting-under-no-tillage-system-in-soil-bin> Kumar, N., Sawant, C.P., Sharma, R.K., Chhokar, R.S., Tiwari, P.S., Singh, D., Roul, A.K., Tripathi, S.C., Gill, S.C. & Singh, G.P. 2021. Journal of Scientific and Industrial Research. 80 (9) 739-749. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137252453/2022/10/25/combined-effect-of-disc-coulters-and-operational-speeds-on-soil-disturbance-and-crop-residue-cutting-under-no-tillage-system-in-soil-bin> https://doi.org/10.56042/jsir.v80i09.40333 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This is an interesting paper looking at different residue cutting disc coulters for no-tillage in black cotton soils in India. They used different forward speeds of residues of rice, maize and wheat. They collected data on penetration depth, top width, soil disturbance and residue cutting. The least soil disturbance was observed for star wheel disc coulter under maize residue followed by notched, curved teeth, plain and cutter bar blade disc coulter. The change in forward speed did not produce significant effect on residue cutting. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137252453/2022/10/25/combined-effect-of-disc-coulters-and-operational-speeds-on-soil-disturbance-and-crop-residue-cutting-under-no-tillage-system-in-soil-bin> <https://www.scoop.it/share/post/twitter/4137252453?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137252453?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137252453?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137252453> Carbon sequestration potential of rice-based cropping systems under different tillage practices <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137248369/2022/10/25/carbon-sequestration-potential-of-rice-based-cropping-systems-under-different-tillage-practices> From doi.org <https://doi.org/10.12871/00021857202132> - October 25, 11:08 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137248369/2022/10/25/carbon-sequestration-potential-of-rice-based-cropping-systems-under-different-tillage-practices> Rao, K.K., Samal, S.K., Kumar, M., Naik, S.K., Bhatt, B.P., Prakash, V., Mondal, S., Choubey, A.K., Dalal, R.C., Mishra, J.S. & Kumar, U. 2021. Agrochimica. 65 (3) 229-246. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137248369/2022/10/25/carbon-sequestration-potential-of-rice-based-cropping-systems-under-different-tillage-practices> https://doi.org/10.12871/00021857202132 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This 4-year study looked at the effect of different tillage practices and cropping systems on total organic carbon fractions and water stable aggregates in the EGP of India. there were 3 rice cropping systems, and three tillage practices -- CT, RT and RT with 30% residue retention RTR30. The Rice-lentil, RTR30 had the highest carbon stock, TOC, organic fractions and aggregated associated organic carbon. However, RT treatments had increased macro-aggregate size and its associated carbon suggesting a high potential for carbon sequestration reducing carbon loss by reducing tillage. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137248369/2022/10/25/carbon-sequestration-potential-of-rice-based-cropping-systems-under-different-tillage-practices> <https://www.scoop.it/share/post/twitter/4137248369?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137248369?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137248369?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137248369> Conservation agriculture improves agronomic, economic, and soil fertility indicators for a clay soil in a rainfed Mediterranean climate in Morocco <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137431193/2022/10/29/conservation-agriculture-improves-agronomic-economic-and-soil-fertility-indicators-for-a-clay-soil-in-a-rainfed-mediterranean-climate-in-morocco> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0308521X22001068> - October 29, 5:36 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137431193/2022/10/29/conservation-agriculture-improves-agronomic-economic-and-soil-fertility-indicators-for-a-clay-soil-in-a-rainfed-mediterranean-climate-in-morocco> Devkota, M., Devkota, K.P. & Kumar, S. 2022. Agricultural Systems. 201. Article number 103470. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137431193/2022/10/29/conservation-agriculture-improves-agronomic-economic-and-soil-fertility-indicators-for-a-clay-soil-in-a-rainfed-mediterranean-climate-in-morocco> https://doi.org/10.1016/j.agsy.2022.103470 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: Climate change is causing declining rainfall (more variability) and increasing temperature extremes and when added to declining soil fertility, food security in rainfed Morocco is threatened. The objective of this study was to systematically evaluate agronomic, economic, and soil fertility indicators under CA and conventional tillage (CT) using field experimentation (medium-term) and simulation modeling (long-term) for a clay soil in Morocco. They looked at the effect of CA on wheat, barley, lentil and chickpea to determine yield, stability, profits, WUE, and soil fertility. They also used Dynamic simulation modeling to assess the long-term effect of adopting CA and CT in these cereal rotations. Both their 5-year field experiment and the modeling showed that adoption of CA improves a range of agronomic, economic and soil fertility indicators compared to CT. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137431193/2022/10/29/conservation-agriculture-improves-agronomic-economic-and-soil-fertility-indicators-for-a-clay-soil-in-a-rainfed-mediterranean-climate-in-morocco> <https://www.scoop.it/share/post/twitter/4137431193?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137431193?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137431193?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137431193> Effect of Conservation Tillage and Precision Nitrogen Management on Wheat: A Review. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430501/2022/10/29/effect-of-conservation-tillage-and-precision-nitrogen-management-on-wheat-a-review> From journalijpss.com <https://journalijpss.com/index.php/IJPSS/article/view/2166> - October 29, 5:00 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430501/2022/10/29/effect-of-conservation-tillage-and-precision-nitrogen-management-on-wheat-a-review> Shukla, A., Kumar, M. & Shukla, A. 2022. International Journal of Plant & Soil Science. 34 (21) 87-97. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430501/2022/10/29/effect-of-conservation-tillage-and-precision-nitrogen-management-on-wheat-a-review> https://doi.org/10.9734/ijpss/2022/v34i2131245 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper reviews CA use in wheat in India, since wheat represents a major 60% crop system in Indian agriculture represents the backbone and the future of the country's economy. This study aimed to review the research studies where precision nitrogen management technologies were applied in conservation agriculture and discussed the effects of these tools and techniques on wheat growth, productivity, and nutrient usage efficiency (NUE). Their findings concluded that productivity and NUE of wheat grown in furrow irrigated raised beds (FIRB) performed better while zero tillage fared better economically than other tillage methods.Precise nitrogen management involving LCC, SPAD, NE, GS, and targeted yield not only increased growth, yield and NUE but also turned out more profitable than a blanket application of N. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137430501/2022/10/29/effect-of-conservation-tillage-and-precision-nitrogen-management-on-wheat-a-review> <https://www.scoop.it/share/post/twitter/4137430501?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137430501?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137430501?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137430501> Ch 1. Conservation Agriculture for Sustainable Intensification: Global Options and Opportunities. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137347211/2022/10/27/ch-1-conservation-agriculture-for-sustainable-intensification-global-options-and-opportunities> From www.taylorfrancis.com <https://www.taylorfrancis.com/chapters/edit/10.4324/9781003292487-2/conservation-agriculture-sustainable-intensification-amir-kassam-saharawat-abrol> - October 27, 12:09 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137347211/2022/10/27/ch-1-conservation-agriculture-for-sustainable-intensification-global-options-and-opportunities> Kassam, A., Saharawat, Y.S. & Abrol, I.P. 2022. In. Sharma, A.R. (Ed.) Conservation Agriculture in India: A Paradigm Shift for Sustainable Production. 17 pages. Routledge, London. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137347211/2022/10/27/ch-1-conservation-agriculture-for-sustainable-intensification-global-options-and-opportunities> https://doi.org/10.4324/9781003292487-2 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This introductory chapter of the new book on CA in India writes about the importance of CA as one management system important for future sustainable production of food and agriculture globally. The indicate that CA is opening up ways of food production that are more profitable, improves livelihoods and enhances ecosystem services. They recommend CA needs to be promoted for the benefit of the farmer, wherever he or she may be farming, however poor or rich, small or large, as well for the society and the planet. All disciplines and people have a role to play because the option and opportunity, which we all must seize, is at the level of a paradigm change. The paper also provides data on the adoption of CA globally. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137347211/2022/10/27/ch-1-conservation-agriculture-for-sustainable-intensification-global-options-and-opportunities> <https://www.scoop.it/share/post/twitter/4137347211?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137347211?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137347211?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137347211> Differential Response of Soil Microbial Diversity and Community Composition Influenced by Cover Crops and Fertilizer Treatments in a Dryland Soybean Production System <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345246/2022/10/27/differential-response-of-soil-microbial-diversity-and-community-composition-influenced-by-cover-crops-and-fertilizer-treatments-in-a-dryland-soybean-production-system> From www.mdpi.com <https://www.mdpi.com/2073-4395/12/3/618> - October 27, 11:44 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345246/2022/10/27/differential-response-of-soil-microbial-diversity-and-community-composition-influenced-by-cover-crops-and-fertilizer-treatments-in-a-dryland-soybean-production-system> Narayana, N.K., Kingery, W.L., Shankle, M.W. & Shanmugam, S.G. 2022. Agronomy. 12 (3) Article number 618. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345246/2022/10/27/differential-response-of-soil-microbial-diversity-and-community-composition-influenced-by-cover-crops-and-fertilizer-treatments-in-a-dryland-soybean-production-system> https://doi.org/10.3390/agronomy12030618 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study looks at the impact of various soil management practices on soil microbial diversity in a no-till dryland soybean system in the USA. Treatments included cover crops and nutrient management including the use of poultry manure. Targeted amplicon sequencing of 16S rRNA and ITS2 genes was used to study the bacterial and fungal community composition. Poultry litter amendment and cover crops significantly influenced soil bacterial diversity. Fertilizer sources had different bacterial populations while cover crops influenced the fungal communities. Differential enrichment of advantageous bacterial (Proteobacteria, Actinobacteria and Acidobacteria) and fungal (Mortierellomycota) phyla was observed across the treatments. They propose a long-term study to provide more inferences on soil microbial community response to management changes. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137345246/2022/10/27/differential-response-of-soil-microbial-diversity-and-community-composition-influenced-by-cover-crops-and-fertilizer-treatments-in-a-dryland-soybean-production-system> <https://www.scoop.it/share/post/twitter/4137345246?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137345246?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137345246?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137345246> Double zero tillage and foliar phosphorus fertilization coupled with microbial inoculants enhance maize productivity and quality in a maize–wheat rotation. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137302512/2022/10/26/double-zero-tillage-and-foliar-phosphorus-fertilization-coupled-with-microbial-inoculants-enhance-maize-productivity-and-quality-in-a-maize-wheat-rotation> From www.nature.com <https://www.nature.com/articles/s41598-022-07148-w> - October 26, 8:01 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137302512/2022/10/26/double-zero-tillage-and-foliar-phosphorus-fertilization-coupled-with-microbial-inoculants-enhance-maize-productivity-and-quality-in-a-maize-wheat-rotation> Harish, M.N., Choudhary, A.K., Kumar, S., Dass, A., Singh, V.K., et.al., 2022. Scientific Reports. 12. Article number 3161. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137302512/2022/10/26/double-zero-tillage-and-foliar-phosphorus-fertilization-coupled-with-microbial-inoculants-enhance-maize-productivity-and-quality-in-a-maize-wheat-rotation> https://doi.org/10.1038/s41598-022-07148-w *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study evaluated a maize-wheat system (MWCS) using 4 crop establishment and tillage practices: Flat bed (FB)–conventional tillage both in maize and wheat; Raised bed (RB)–CT in maize and ZT in wheat); FB but ZT both in maize and wheat); Permanent raised bed (PRB–ZT both in maize and wheat. Also five P-fertilization practices. Double zero-tilled PRBZT–PRBZT system significantly enhanced the maize grain, starch, protein and oil yield by 13.1–19% over conventional FBCT–FBCT. P50 + PSB + AMF + 2FSP, integrating soil applied-P, microbial-inoculants and foliar-P, had significantly higher grain, starch, protein and oil yield by 12.5–17.2% over P100. They conclude that double zero-tilled PRBZT–PRBZT with crop residue retention at 6 t/ha per year along with P50 + PSB + AMF + 2FSP while saving 34.7% fertilizer-P in MWCS is the best treatments. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137302512/2022/10/26/double-zero-tillage-and-foliar-phosphorus-fertilization-coupled-with-microbial-inoculants-enhance-maize-productivity-and-quality-in-a-maize-wheat-rotation> <https://www.scoop.it/share/post/twitter/4137302512?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137302512?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137302512?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137302512> Influence of 9 years of permanent raised beds and contour furrowing on soil health in conservation agriculture based systems in Tigray region, Ethiopia <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137253376/2022/10/25/influence-of-9-years-of-permanent-raised-beds-and-contour-furrowing-on-soil-health-in-conservation-agriculture-based-systems-in-tigray-region-ethiopia> From doi.org <https://doi.org/10.1002/ldr.3816> - October 25, 5:40 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137253376/2022/10/25/influence-of-9-years-of-permanent-raised-beds-and-contour-furrowing-on-soil-health-in-conservation-agriculture-based-systems-in-tigray-region-ethiopia> Araya, T., Gebremedhin, A., Baudron, F., Hailemariam, M., Birhane, E., Nyssen, J., Govaerts, B. & Cornelis, W. 2021. Land Degradation and Development. 32 (3) 1525-1539. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137253376/2022/10/25/influence-of-9-years-of-permanent-raised-beds-and-contour-furrowing-on-soil-health-in-conservation-agriculture-based-systems-in-tigray-region-ethiopia> https://doi.org/10.1002/ldr.3816 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This long term study evaluated and reports on CA, but with bed and furrow planting on soil health using teff, wheat, barley and grass-pea in Ethiopia. They used permanent raised beds (PRB) and contour furrowing (CF) and conventional tillage (CT). Soil from 0-10 cm depth was used for evaluating soil health and crop yield. Arbuscular mycorrhizal fungi spore abundance and root colonization was higher in PRB followed by CF compared to CT. Higher straw and grain yield were recorded for PRB, CF and CT, respectively. A PSEM model highlighted two pathways in which CA-based systems contributed to improved productivity: (a) via higher density of bacteria and improved hydraulic conductivity, and (b) via higher density of fungi and increase soil organic carbon content in the topsoil. They conclude that CA can improve yield through improving soil health. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137253376/2022/10/25/influence-of-9-years-of-permanent-raised-beds-and-contour-furrowing-on-soil-health-in-conservation-agriculture-based-systems-in-tigray-region-ethiopia> <https://www.scoop.it/share/post/twitter/4137253376?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137253376?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137253376?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137253376> Agricultural practices modulate the bacterial communities, and nitrogen cycling bacterial guild in rhizosphere: field experiment with soybean <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137250289/2022/10/25/agricultural-practices-modulate-the-bacterial-communities-and-nitrogen-cycling-bacterial-guild-in-rhizosphere-field-experiment-with-soybean> From doi.org <https://doi.org/10.1002/jsfa.10893> - October 25, 11:30 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137250289/2022/10/25/agricultural-practices-modulate-the-bacterial-communities-and-nitrogen-cycling-bacterial-guild-in-rhizosphere-field-experiment-with-soybean> Singh, U., Choudhary, A.K. & Sharma, S. 2021. Journal of the Science of Food and Agriculture. 101 (7) 2687-2695. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137250289/2022/10/25/agricultural-practices-modulate-the-bacterial-communities-and-nitrogen-cycling-bacterial-guild-in-rhizosphere-field-experiment-with-soybean> https://doi.org/10.1002/jsfa.10893 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper promotes integrated practices that can promote the soil microbiome to enhance productivity. The study looked at rhizospheric N-cycling community of soybeans under CA, CT, and organic including raised beds. Results showed that CA on raised beds, zero tillage, crop residue retention, and application of NPK nutrients favorably affected plant attributes and the abundance of the N cycling bacterial community compared to the CT treatments. They conclude that this helped understand the enhanced plant growth under CA. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4137250289/2022/10/25/agricultural-practices-modulate-the-bacterial-communities-and-nitrogen-cycling-bacterial-guild-in-rhizosphere-field-experiment-with-soybean> <https://www.scoop.it/share/post/twitter/4137250289?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4137250289?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4137250289?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4137250289> ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);