*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF* *for sustainable agriculture, land use and ecosystem management* Dear Subscribers, Please see herebelow the latest CA Scoopit newsletter from Cornell. 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: Tue, 1 Mar 2022 at 14:09 Subject: March 2022 CA Scoopit newsletter To: Amir Kassam <[log in to unmask]> Dear Amir: Here is our March 2022 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 - March 2022] <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag> Conservation Agriculture Research Updates - March 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 the drylands of the Middle East and North Africa (MENA) region: Past trend, current opportunities, challenges and future outlook <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130456090/2022/02/25/conservation-agriculture-in-the-drylands-of-the-middle-east-and-north-africa-mena-region-past-trend-current-opportunities-challenges-and-future-outlook> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0065211321001036> - Today, 2:01 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130456090/2022/02/25/conservation-agriculture-in-the-drylands-of-the-middle-east-and-north-africa-mena-region-past-trend-current-opportunities-challenges-and-future-outlook> Devkota, M., Singh, Y., Yigezu, Y.A., Bashour, I., Mussadek, R. & Mrabet, R. 2022. Advances in Agronomy. 172. Chapter 6. 253-305. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130456090/2022/02/25/conservation-agriculture-in-the-drylands-of-the-middle-east-and-north-africa-mena-region-past-trend-current-opportunities-challenges-and-future-outlook> https://doi.org/10.1016/bs.agron.2021.11.001 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper reviewed and synthesized findings on CA; past trends, opportunities and challenges, potential benefits and future outlook to combat degradation of soil and water in Middle East and North Africa (MENA). They estimate that 25-40% of the 53 million ha's of arable land in this region are suitable for CA but adoption is low and the authors list some of the factors responsible for this. The wider acceptance of CA requires the development of affordable and versatile no-till seeder alongside the implementation of integrated crop management practices. CA-based bundled agronomic management practices must be tailored to the biophysical and socio-economic environment. The authors conclude by predicting a bright future for CA in the MENA region and list a number of reasons for this. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130456090/2022/02/25/conservation-agriculture-in-the-drylands-of-the-middle-east-and-north-africa-mena-region-past-trend-current-opportunities-challenges-and-future-outlook> <https://www.scoop.it/share/post/twitter/4130456090?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130456090?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130456090?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130456090> Conservation agriculture based integrated crop management sustains productivity and economic profitability along with soil properties of the maize-wheat rotation. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427497/2022/02/24/conservation-agriculture-based-integrated-crop-management-sustains-productivity-and-economic-profitability-along-with-soil-properties-of-the-maize-wheat-rotation> From www.nature.com <https://www.nature.com/articles/s41598-022-05962-w> - February 24, 7:29 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427497/2022/02/24/conservation-agriculture-based-integrated-crop-management-sustains-productivity-and-economic-profitability-along-with-soil-properties-of-the-maize-wheat-rotation> Pooniya, V., Zhiipao, R.R., Biswakarma, N., Kumar, D., Shivay, Y.S., Babu, S., Das, K., Choudhary, A.K., Swarnalakshmi, K., Jat, R.D., Chaudhary, R.L., Ram, H., Khokhar, M.K., Mukri, G., Lakhena, K.K., Puniya, M.M., Jat, R., Muralikrishnan, L., Singh, A.K. & Lama, A. 2022. Scientific Reports. 12 (1) 1962. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427497/2022/02/24/conservation-agriculture-based-integrated-crop-management-sustains-productivity-and-economic-profitability-along-with-soil-properties-of-the-maize-wheat-rotation> https://doi.org/10.1038/s41598-022-05962-w *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study looked at 5 years of maize-wheat with 8 different integrated crop management (ICM) modules. ICM1&2-ˈbusiness-as-usualˈ (conventional flatbed maize and wheat, ICM3&4-conventional raised bed (CTRB) maize and wheat without residues, ICM5&6-conservation agriculture (CA)-based zero-till (ZT) flatbed maize and wheat with the residues, and ICM7&8- CA-based ZT raised bed maize and wheat with the residues. The authors concludes that the adoption of the CA-based residue retained ICMs in the MWR could sustain the crop yields, enhance farm profits, save water and improve soil properties of the north-western plans of India. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427497/2022/02/24/conservation-agriculture-based-integrated-crop-management-sustains-productivity-and-economic-profitability-along-with-soil-properties-of-the-maize-wheat-rotation> <https://www.scoop.it/share/post/twitter/4130427497?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130427497?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130427497?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130427497> Advances in Conservation Agriculture. Volume 3 Adoption and Spread <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130429098/2022/02/24/advances-in-conservation-agriculture-volume-3-adoption-and-spread> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130429098/2022/02/24/advances-in-conservation-agriculture-volume-3-adoption-and-spread> From shop.bdspublishing.com <https://shop.bdspublishing.com/store/bds/detail/workgroup/3-190-106341> - February 24, 7:05 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130429098/2022/02/24/advances-in-conservation-agriculture-volume-3-adoption-and-spread> Kassam, A. Editor. 2022. Volume 3. Burleigh Dodds Science Publishing. Cambridge, UK. ISBN: 978-1-78676-475-1 print. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130429098/2022/02/24/advances-in-conservation-agriculture-volume-3-adoption-and-spread> https://shop.bdspublishing.com/store/bds/detail/workgroup/3-190-106341 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: The book provides an authoritative review from an array of international experts on the adoption of CA principles in different regions around the world. The final volume in this collection reviews the effectiveness of CA in differing contexts (e.g. in drier conditions where water conservation is important or in areas with poor soil) and refers to the wealth of research and experiential evidence currently available. Find out more about the new title using the link above. *Special Offer* Receive 20% off your order of the book using code CONSAG via the BDS Website. Please note that this code is also applicable to Volume 1 and 2. Discount code expires 31st March 2022. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130429098/2022/02/24/advances-in-conservation-agriculture-volume-3-adoption-and-spread> <https://www.scoop.it/share/post/twitter/4130429098?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130429098?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130429098?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130429098> Impact of long term conservation agriculture on soil quality under cereal based systems of North West India <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428331/2022/02/24/impact-of-long-term-conservation-agriculture-on-soil-quality-under-cereal-based-systems-of-north-west-india> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0016706121004717> - February 24, 6:44 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428331/2022/02/24/impact-of-long-term-conservation-agriculture-on-soil-quality-under-cereal-based-systems-of-north-west-india> Roy, D., Datta, A., Jat, H.S., Choudhary, M., Sharma, P.C., Singh, P.K. & Jat, M.L. 2021. Geoderma. 405. Article number 115391. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428331/2022/02/24/impact-of-long-term-conservation-agriculture-on-soil-quality-under-cereal-based-systems-of-north-west-india> https://doi.org/10.1016/j.geoderma.2021.115391 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This article looks at the effect of 10 years of CA on soil quality under cropping scenarios in NW India. Sc1-transplanted puddled rice (TPR) followed by conventional tilled broadcasted wheat (CT-wheat) with residue removal (farmer practice); Sc2-TPR rice followed ZT wheat and ZT-mung bean with partial residue retention; Sc3-direct seeded rice (DSR) followed by ZT-wheat and ZT-mung bean with full residue retention; Sc4-DSR is replaced by ZT-maize followed by ZT-wheat and ZT-mung bean Sc5 was Sc3 with sub surface drip irrigation (SSDI) and; and Sc6 was Sc4 + SSDI. The results show that CA based maize-wheat-mung bean cropping system should be recommended for better soil quality and yield sustainability. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428331/2022/02/24/impact-of-long-term-conservation-agriculture-on-soil-quality-under-cereal-based-systems-of-north-west-india> <https://www.scoop.it/share/post/twitter/4130428331?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130428331?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130428331?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130428331> Water budgeting in conservation agriculture-based sub-surface drip irrigation in tropical maize using HYDRUS-2D in South Asia | Scientific Reports <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130398127/2022/02/23/water-budgeting-in-conservation-agriculture-based-sub-surface-drip-irrigation-in-tropical-maize-using-hydrus-2d-in-south-asia-scientific-reports> From www.nature.com <https://www.nature.com/articles/s41598-021-93866-6> - February 23, 1:48 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130398127/2022/02/23/water-budgeting-in-conservation-agriculture-based-sub-surface-drip-irrigation-in-tropical-maize-using-hydrus-2d-in-south-asia-scientific-reports> Patra, K., Parihar, C.M., Nayak, H.S., Rana, B., Singh, V.K., Jat, S.L., Panwar, S., Parihar, M.D., Singh, L.K., Sidhu, H.S., Gerard, B. & Jat, M.L. 2021. Scientific Reports. 11 (1) Article number 16770. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130398127/2022/02/23/water-budgeting-in-conservation-agriculture-based-sub-surface-drip-irrigation-in-tropical-maize-using-hydrus-2d-in-south-asia-scientific-reports> https://doi.org/10.1038/s41598-021-93866-6 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study includes research soil-water studies on maize-wheat system where maize is used instead of rice. They use CA and sub-surface drip irrigation (SSDI) as key strategies to address water scarcity in South Asia. The field study used a process-based model (HYDRUS 2D) to understand water transport, root water uptake and components of soil water balance in maize grown in rotation with wheat after five years of continuous adoption of conservation agriculture. The study included CA, SSDI, permanent beds, with and without residues and different N-rates and compared with CA on beds with furrow irrigation and conventional tillage on beds without residue. In CA+ based plots (CA + SSDI) significantly had higher biomass production and radiation use efficiency with reduced water use than CA (furrow irrigation) and CT. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130398127/2022/02/23/water-budgeting-in-conservation-agriculture-based-sub-surface-drip-irrigation-in-tropical-maize-using-hydrus-2d-in-south-asia-scientific-reports> <https://www.scoop.it/share/post/twitter/4130398127?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130398127?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130398127?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130398127> Understanding Adoption and Impacts of Conservation Agriculture in Eastern and Southern Africa: A Review. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397050/2022/02/23/understanding-adoption-and-impacts-of-conservation-agriculture-in-eastern-and-southern-africa-a-review> From www.frontiersin.org <https://www.frontiersin.org/articles/10.3389/fagro.2021.671690/full> - February 23, 1:22 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397050/2022/02/23/understanding-adoption-and-impacts-of-conservation-agriculture-in-eastern-and-southern-africa-a-review> Ngoma, H., Angelsen, A., Jayne, T.S. & Chapoto, A. 2021. Frontiers in Agronomy. 3. Article number 671690 <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397050/2022/02/23/understanding-adoption-and-impacts-of-conservation-agriculture-in-eastern-and-southern-africa-a-review> https://doi.org/10.3389/fagro.2021.671690 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This review looks at whether CA is a Climate Smart practice and why adoption by smallholder farmers in Eastern and Southern Africa is low. They use an adoption framework to achieve this and look at the different components of CA. Their results suggest CA can contribute to productivity and resilience but varies by farm, household and region. They show that capital-intensive (mechanized) CA is more likely to be adopted in areas of economic dynamism where capital is cheap relative to labor. Labor-intensive CA practices are more likely to be adopted in regions of economic stagnation where capital is expensive, and labor is abundant and cheap. They conclude that CA is climate smart and if adopted widely, has the potential to help build resilience in smallholder farming systems. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397050/2022/02/23/understanding-adoption-and-impacts-of-conservation-agriculture-in-eastern-and-southern-africa-a-review> <https://www.scoop.it/share/post/twitter/4130397050?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130397050?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130397050?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130397050> Quantification of resilience metrics as affected by conservation agriculture at a watershed scale <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392258/2022/02/23/quantification-of-resilience-metrics-as-affected-by-conservation-agriculture-at-a-watershed-scale> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0167880921003169> - February 23, 10:11 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392258/2022/02/23/quantification-of-resilience-metrics-as-affected-by-conservation-agriculture-at-a-watershed-scale> Eeswaran, R., Nejadhashemi, A.P., Kpodo, J., Curtis, Z.K., Adhikari, U., Liao, H., Li, S.G., Hernandez-Suarez, J.S., Alves, F.C., Raschke, A. Jha, P.K. 2021. Agriculture, Ecosystems and Environment. 320. Article number 107612. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392258/2022/02/23/quantification-of-resilience-metrics-as-affected-by-conservation-agriculture-at-a-watershed-scale> https://doi.org/10.1016/j.agee.2021.107612 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper presents an approach that integrates long-term field experimental data and modeling to quantify resilience of NT at a watershed scale in Michigan. Recharge, groundwater table, soil moisture, yield, and net return were used as resilience metrics. The DSSAT sequence crop model was developed for a corn-soybean-wheat rotation and calibrated using the yield and soil moisture data from a long-term (1993–2019) experiment for the conventional and the no-till treatment conducted within the study area. Their results show evidence of higher recharge and net return under the no-till treatment, which were statistically significant for all crops at the watershed scale. The NT treatment also retained more soil moisture that helped mitigate drought impacts. The groundwater table also rose in NT treatments. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392258/2022/02/23/quantification-of-resilience-metrics-as-affected-by-conservation-agriculture-at-a-watershed-scale> <https://www.scoop.it/share/post/twitter/4130392258?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130392258?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130392258?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130392258> Linking Cover Crop Residue Quality and Tillage System to CO2-C Emission, Soil C and N Stocks and Crop Yield Based on a Long-Term Experiment <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394007/2022/02/23/linking-cover-crop-residue-quality-and-tillage-system-to-co2-c-emission-soil-c-and-n-stocks-and-crop-yield-based-on-a-long-term-experiment> From www.mdpi.com <https://www.mdpi.com/2073-4395/10/12/1848> - February 23, 9:42 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394007/2022/02/23/linking-cover-crop-residue-quality-and-tillage-system-to-co2-c-emission-soil-c-and-n-stocks-and-crop-yield-based-on-a-long-term-experiment> Leal, O.A., Amado, T.J.C., Fiorin, J.E., Keller, C., Reimche, G.B., Rice, C.W., Nicoloso, R.S., Bortolotto, R.P. Schwalbert, R. 2020.Agronomy. 10 (12) Article 1848. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394007/2022/02/23/linking-cover-crop-residue-quality-and-tillage-system-to-co2-c-emission-soil-c-and-n-stocks-and-crop-yield-based-on-a-long-term-experiment> https://doi.org/10.3390/agronomy10121848 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper looks at various cover crop qualities on C02 emissions under CT, MT and NT plots after a long term experiment in Brazil. They found that compared to CT, NT increased the half life time of oat, oat + vetch and vetch by 3.9-, 3.1- and 3-fold, respectively; reduced CO2-C emissions in these 3 cover crops 500, 600 and 642 kg ha-1, respectively; and increased the apparent carbon balance (ACB) (influx) in oat + vetch (195%) and vetch (207%). For vetch, CO2-C emission in MT (minimal tillage) was 77% greater than NT. Legume CC should be preferentially combined with NT to reduce CO2-C emissions and avoid a flush of N into the soil. The legume based-NT system showed the greatest soil C and N sequestration rates, which were significantly and positively related to soybean and maize yield. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394007/2022/02/23/linking-cover-crop-residue-quality-and-tillage-system-to-co2-c-emission-soil-c-and-n-stocks-and-crop-yield-based-on-a-long-term-experiment> <https://www.scoop.it/share/post/twitter/4130394007?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130394007?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130394007?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130394007> Simulation of maize and soybean yield using DSSAT under long-term conventional and no-till systems <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130454127/2022/02/25/simulation-of-maize-and-soybean-yield-using-dssat-under-long-term-conventional-and-no-till-systems> From www.publish.csiro.au <https://www.publish.csiro.au/sr/SR21042> - Today, 1:46 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130454127/2022/02/25/simulation-of-maize-and-soybean-yield-using-dssat-under-long-term-conventional-and-no-till-systems> Rai, T., Kumar, S., Nleya, T., SExton, P. & Hoogenboom, G. 2022. Soil Research. On-line. Article number 21042 <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130454127/2022/02/25/simulation-of-maize-and-soybean-yield-using-dssat-under-long-term-conventional-and-no-till-systems> https://doi.org/10.1071/SR21042 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This study evaluated 2 crop models CSM-CERES for maize and CSM-CROPGRO for soybean for NT and CT systems and compared the long-term impacts of NT and CT on crop yield and SOC using 5 years of data. The results from these long-term (30-year) simulations suggest that compared to CT, the NT system enhanced SOC over time and, hence, crop yield and biomass production. They conclude that application of NT can be beneficial for enhancing the soils and crop production in the long-term as compared to the CT system. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130454127/2022/02/25/simulation-of-maize-and-soybean-yield-using-dssat-under-long-term-conventional-and-no-till-systems> <https://www.scoop.it/share/post/twitter/4130454127?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130454127?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130454127?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130454127> Legacy Effects of Contrasting Long-Term Integrated Weed Management Systems <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427478/2022/02/24/legacy-effects-of-contrasting-long-term-integrated-weed-management-systems> From www.frontiersin.org <https://www.frontiersin.org/articles/10.3389/fagro.2021.769992/full> - February 24, 7:16 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427478/2022/02/24/legacy-effects-of-contrasting-long-term-integrated-weed-management-systems> Cordeau, S., Baudron, A., Busset, H., Farcy, P., Vieren, E., Smith, R.G., Munier-Jolain, N. & Adeux, G. 2022. Frontiers in Agronomy. 3. Article number 769992. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427478/2022/02/24/legacy-effects-of-contrasting-long-term-integrated-weed-management-systems> https://doi.org/10.3389/fagro.2021.769992 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This article advocates for integrated weed management rather than relying on herbicides. This study assessed the effects of four IWM systems with contrasting objectives and practices (S2: transition from superficial tillage to conservation agriculture; S3: no-mechanical weeding; S4: mixed mechanical and chemical weeding; S5: herbicide-free; all with 6 year rotations) compared to a conventional reference (S1: herbicide-based with systematic plowing and a 3 year rotation) on taxonomic and functional weed community composition and structure after 17 years of continuous implementation in a winter wheat crop. They found that resulting weed communities in IWM systems were more species rich (species richness from 1.1 to 2.6 times greater) and more abundant (total density from 3.3 to 25 times greater) than those observed in the reference system, and differed in term of taxonomic and functional composition. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427478/2022/02/24/legacy-effects-of-contrasting-long-term-integrated-weed-management-systems> <https://www.scoop.it/share/post/twitter/4130427478?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130427478?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130427478?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130427478> Toward greater sustainability: how investing in soil health may enhance maize productivity in Southern Africa. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428344/2022/02/24/toward-greater-sustainability-how-investing-in-soil-health-may-enhance-maize-productivity-in-southern-africa> From www.cambridge.org <https://www.cambridge.org/core/journals/renewable-agriculture-and-food-systems/article/toward-greater-sustainability-how-investing-in-soil-health-may-enhance-maize-productivity-in-southern-africa/4447B988FCB2474C21F6CFC8FBE8E534> - February 24, 6:54 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428344/2022/02/24/toward-greater-sustainability-how-investing-in-soil-health-may-enhance-maize-productivity-in-southern-africa> Thierfelder, C., Paterson, E., Mwafulirwa, L., Daniell, T.J., Cairns, J.E., Mhlanga, B. & Baggs, E.M. 2021. Renewable Agriculture and Food Systems. 12 pages. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428344/2022/02/24/toward-greater-sustainability-how-investing-in-soil-health-may-enhance-maize-productivity-in-southern-africa> https://doi.org/10.1017/S1742170521000442 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This paper reports a study that examined the effects of NT as compared with CT without residue retention on relationships between soil characteristics and maize productivity in long-term on-farm and on-station trials in Zimbabwe. Total soil nitrogen (N) and C were strong predictors of maize grain yield and above-ground biomass (i.e., stover) in the clayey soils, but not in the sandy soils, under both managements. They conclude that sandy soils should be the priority target of NT with organic resource inputs interventions in southern Africa, as mineral fertilizer inputs alone will not halt the soil fertility decline. Clayey soils on the other hand have greater buffering capacity against detrimental effects of soil tillage and low C input. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130428344/2022/02/24/toward-greater-sustainability-how-investing-in-soil-health-may-enhance-maize-productivity-in-southern-africa> <https://www.scoop.it/share/post/twitter/4130428344?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130428344?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130428344?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130428344> Changes in soil properties and crop performance on stubble-burned and cultivated water-repellent soils can take many years following reversion to no-till and stubble retention <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427418/2022/02/24/changes-in-soil-properties-and-crop-performance-on-stubble-burned-and-cultivated-water-repellent-soils-can-take-many-years-following-reversion-to-no-till-and-stubble-retention> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0016706121004419> - February 24, 6:32 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427418/2022/02/24/changes-in-soil-properties-and-crop-performance-on-stubble-burned-and-cultivated-water-repellent-soils-can-take-many-years-following-reversion-to-no-till-and-stubble-retention> Roper, M.M., Kerr, R., Ward, P.R., Micin, S.F. Krishnamurthy, P. 2021. Geoderma. 402. Article number 115361. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427418/2022/02/24/changes-in-soil-properties-and-crop-performance-on-stubble-burned-and-cultivated-water-repellent-soils-can-take-many-years-following-reversion-to-no-till-and-stubble-retention> https://doi.org/10.1016/j.geoderma.2021.115361 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: NT and stubble retention is common in Australia to protect soils from erosion. This 10-year (2008–2017) field experiment with 4 combinations of tillage (no-till vs cultivation) and stubble management (retention or burning) were applied annually from 2008 to 2011. In 2012, all plots were returned to no-till and stubble retention to determine the recovery of crop performance and soil properties from stubble burning and/or cultivation. Changes to ground cover, soil water repellency, soil water content, soil carbon and crop performance during a 6-year period (2012–2017) were compared with plots where no-tillage and stubble retention had been practiced for several decades. Average grain yields where stubble had always been retained were significantly (P < 0.001) greater by 22–33% than where stubbles had previously been burned. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130427418/2022/02/24/changes-in-soil-properties-and-crop-performance-on-stubble-burned-and-cultivated-water-repellent-soils-can-take-many-years-following-reversion-to-no-till-and-stubble-retention> <https://www.scoop.it/share/post/twitter/4130427418?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130427418?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130427418?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130427418> Effect of crop rotation diversity and windrow burning of residue on soil chemical composition under long-term no-tillage. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397075/2022/02/23/effect-of-crop-rotation-diversity-and-windrow-burning-of-residue-on-soil-chemical-composition-under-long-term-no-tillage> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0167198721002269> - February 23, 1:33 PM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397075/2022/02/23/effect-of-crop-rotation-diversity-and-windrow-burning-of-residue-on-soil-chemical-composition-under-long-term-no-tillage> Passaris, N., Flower, K.C., Ward, P.R. & Cordingley, N. 2021. Soil and Tillage Research. 213. Article number 105153 <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397075/2022/02/23/effect-of-crop-rotation-diversity-and-windrow-burning-of-residue-on-soil-chemical-composition-under-long-term-no-tillage> https://doi.org/10.1016/j.still.2021.105153 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This is another paper that studies the effect of rotation under NT in Australia on key soil constituents where herbicide resistant weeds are controlled by windrow burning. This 12 year study looked at rotation diversity and residue management on soil nutrients. 5 rotations were selected and 2 residue treatments; left on the surface or burnt in windrows before seeding. By the end of the experiment, soil organic carbon stocks (0–30 cm) were significantly lower in the farmer rotation compared with the cereal and diverse rotations. There was no significant difference between the cereal and diverse rotations. The annual burning of windrows for weed seed control was found to reduce soil organic carbon stocks. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130397075/2022/02/23/effect-of-crop-rotation-diversity-and-windrow-burning-of-residue-on-soil-chemical-composition-under-long-term-no-tillage> <https://www.scoop.it/share/post/twitter/4130397075?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130397075?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130397075?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130397075> Effects of Crop Rotation on Spring Wheat Yield and Pest Occurrence in Different Tillage Systems: A Multi-Year Experiment in Finnish Growing Conditions . <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394248/2022/02/23/effects-of-crop-rotation-on-spring-wheat-yield-and-pest-occurrence-in-different-tillage-systems-a-multi-year-experiment-in-finnish-growing-conditions> From www.frontiersin.org <https://www.frontiersin.org/articles/10.3389/fsufs.2021.647335/full> - February 23, 10:29 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394248/2022/02/23/effects-of-crop-rotation-on-spring-wheat-yield-and-pest-occurrence-in-different-tillage-systems-a-multi-year-experiment-in-finnish-growing-conditions> Jalli, M., Huusela, E., Jalli, H., Kauppi, K., Niemi, M., Himanen, S. & Jauhiainen, L. 2021. Frontiers in Sustainable Food Systems. 5. Article number 647335. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394248/2022/02/23/effects-of-crop-rotation-on-spring-wheat-yield-and-pest-occurrence-in-different-tillage-systems-a-multi-year-experiment-in-finnish-growing-conditions> https://doi.org/10.3389/fsufs.2021.647335 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This article assesses the effect of rotation in Northern European spring wheat (SW) cropping systems yield, pest and soil health using different tillage methods in a 12-year experiment in Finland. 3 crop rotations were used -- monoculture SW; a two year rotation with SW-rape-SW-barley; and a 4 year rotation SW-rape-barley-pea. Results show a diversified crop rotation improved SW yield by up to 30% in no-tillage and by 13% under plowing compared with monoculture. The yield quantity and quality differences between crop rotations were higher in no-tillage plots than in plowed plots. Weed species in SW before herbicide control was highest in the four-year crop rotation and lowest in the wheat monoculture. For plant diseases, wheat leaf blotch disease severity was lowest in the most diverse crop rotation when wheat was grown every 4th year.. Stem and root diseases became apparent after 6 years of rotation and the disease index was lowest in the most diverse crop rotation. Neither rotation nor tillage affected the control need of wheat midge. Based on our results, diverse crop rotations including cereals, oilseed crops, and legumes increase yield and reduce plant disease severity of spring wheat in Finland, with the magnitude being larger in no-tillage system <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130394248/2022/02/23/effects-of-crop-rotation-on-spring-wheat-yield-and-pest-occurrence-in-different-tillage-systems-a-multi-year-experiment-in-finnish-growing-conditions> <https://www.scoop.it/share/post/twitter/4130394248?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130394248?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130394248?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130394248> Global warming potential and energy dynamics of conservation tillage practices for different rabi crops in the Indo-Gangetic Plains <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392192/2022/02/23/global-warming-potential-and-energy-dynamics-of-conservation-tillage-practices-for-different-rabi-crops-in-the-indo-gangetic-plains> From linkinghub.elsevier.com <https://linkinghub.elsevier.com/retrieve/pii/S0301479721012445> - February 23, 9:58 AM <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392192/2022/02/23/global-warming-potential-and-energy-dynamics-of-conservation-tillage-practices-for-different-rabi-crops-in-the-indo-gangetic-plains> Chaudhary, V.P., Chandra, R., Chaudhary, R. & Bhattacharyya, R. 2021. Journal of Environmental Management. 296. Article number 113182. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392192/2022/02/23/global-warming-potential-and-energy-dynamics-of-conservation-tillage-practices-for-different-rabi-crops-in-the-indo-gangetic-plains> https://doi.org/10.1016/j.jenvman.2021.113182 *Cornell Conservation Agriculture Group (soilhealth.org)*'s insight: This 12 year experiment in the IGP with various winter crops had different tillage systems and assessed energy indices, GHG emissions and carbon sustainability index (CSI). The tillage systems were NT with NT drill; NT+ previous crop residues using a happy turbo seeder drill (HT) and ; CT with harrow and rotovator. CT plots consumed higher input energy than NT and HT plots but output energy efficiency was highest in HT. GHG (C02 equivalents) were highest in wheat and maize. CT produced about 30% higher GHG emission than HT and NT resulting in a lower CSI in CT. <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag/p/4130392192/2022/02/23/global-warming-potential-and-energy-dynamics-of-conservation-tillage-practices-for-different-rabi-crops-in-the-indo-gangetic-plains> <https://www.scoop.it/share/post/twitter/4130392192?forceAnonymous=1> <https://www.scoop.it/share/post/facebook/4130392192?forceAnonymous=1> <https://www.scoop.it/share/post/linkedin/4130392192?forceAnonymous=1> <https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?rescoopPostId=4130392192> <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);