*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 <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> <https://www.scoop.it/share/post/twitter/4133672461?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133672461?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133672461?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133672461> 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> <https://www.scoop.it/share/post/twitter/4133673077?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133673077?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133673077?forceAnonymous=1> <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> <https://www.scoop.it/share/post/twitter/4133670890?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133670890?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133670890?forceAnonymous=1> <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> <https://www.scoop.it/share/post/twitter/4133649608?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133649608?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133649608?forceAnonymous=1> <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> <https://www.scoop.it/share/post/twitter/4133649561?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133649561?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133649561?forceAnonymous=1> <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> <https://www.scoop.it/share/post/twitter/4133650225?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133650225?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133650225?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133650225> 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> <https://www.scoop.it/share/post/twitter/4133649387?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4133649387?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4133649387?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4133649387> <https://drive.google.com/u/0/settings/storage?hl=en&utm_medium=web&utm_source=gmail&utm_campaign=storage_meter&utm_content=storage_normal> <https://www.google.com/intl/en/policies/terms/> <https://www.google.com/intl/en/policies/privacy/> <https://www.google.com/gmail/about/policy/> ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);