*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE* *for sustainable agriculture and land management* Dear Subscribers, Please see herebelow the June 2020 Conservation Agriculture Scoopit Research Update from Professor Peter Hobbs at Cornell. Apologies for any cross-posting. *Amir Kassam * *Moderator* *Global CA-CoP* e-mail: [log in to unmask] URL: http://www.fao.org/conservation-agriculture *Conservation Agriculture is an ecosystem approach to regenerative sustainable agriculture and land management based on the practical application of context-specific and locally adapted three interlinked principles of: (i) Continuous no or minimum mechanical soil disturbance (no-till seeding/planting and weeding, and minimum soil disturbance with all other farm operations including harvesting); (ii) permanent maintenance of soil mulch cover (crop biomass, stubble and cover crops); and (iii) diversification of cropping system (economically, environmentally and socially adapted rotations and/or sequences and/or associations involving annuals and/or perennials, including legumes and cover crops), along with other complementary good agricultural production and land management practices. * ---------- Forwarded message --------- From: Peter Hobbs <[log in to unmask]> Date: Mon, 1 Jun 2020 at 14:17 Subject: June Scoopit newsletter on CA To: Amir Kassam <[log in to unmask]> Dear Amir: Here is our June 2020 Conservation Agriculture Scoopit Research Update. You can also view on line at https://www.scoop.it/topic/conservation-agriculture-by-conservation-ag?curate=true&null Can you send this out to people who get your list serve material? The hard copy is below. Many thanks for helping to distribute this. The Cornell University Conservation Agriculture web page htttp:// soilhealth.org is worth exploring since it contains many CA materials. It has almost 2000 CA articles you can search using the link https://www.zotero.org/groups/348525/cornell_conservation_agriculture/collections/KGBFX8BX Under the research menu item there are also instructions for joining and using this Zotero database. [image: image.jpeg] <http://sco.lt/4zOzvk?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Conservation Agriculture Research Updates - June 2020 <http://sco.lt/4zOzvk?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> by Cornell Conservation Agriculture Group (http://soilhealth.org) <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Powered by <http://sco.lt/62rhAn?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/62rhAn?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.gif] Tillage practices with different soil disturbance shape the rhizosphere bacterial community throughout crop growth. <http://sco.lt/6FUsym?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/6FUsym?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/6ppXd2?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - Today, 4:56 PM <http://sco.lt/6FUsym?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Wang, Z., Li, Y., Li, T., Zhao, D. & Liao, Y. 2020. Soil and tillage research. 197: 104501. <http://sco.lt/6FUsym?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.still.2019.104501 <http://sco.lt/77zrxA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study used 16S rRNA sequencing to analyze the assembly and composition of the rhizosphere bacterial communities of wheat at different growth stages tillage practices. The results show significant changes. The bacterial communities under ZT appear to be more stable compared to plough tillage treatment probably related to less soil disturbance. <http://sco.lt/6FUsym?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7iKWbQ?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/80UqvY?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/80UqvY?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/8IfBFg?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8IfBFg?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Potassium and Residue Management Options to Enhance Productivity and Soil Quality in Zero Till Maize–Wheat Rotation. <http://sco.lt/8Y4C6i?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From onlinelibrary.wiley.com <http://sco.lt/8apVZo?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - Today, 3:56 PM <http://sco.lt/8Y4C6i?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Madar, R., Singh, Y.V., Meena, M.C., Das, T.K., Gaind, S. & Verma, R.K. 2020. Clean - Soil Air Water. 48 (3): 1900316. <http://sco.lt/8Y4C6i?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1002/clen.201900316 <http://sco.lt/8szptw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study looked at 4 residue levels and 5 potassium levels on ZT maize-wheat in India on station. Residue and potassium both increased crop yield and soil quality. The maximum effect on crop growth came with 4-6 Mg/ha of crop residue (CR). Soil quality measures of bulk density, pH, EC, and available micronutrients were the same for the CR and K treatments. They recommend that CR retention combined with 50% recommended K were needed for crop growth and soil health. <http://sco.lt/8Y4C6i?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/4nndsO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/4nndsO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/55xyCW?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/55xyCW?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/5O8IWe?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5O8IWe?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Conservation Agriculture-based Sustainable Intensification of Cereal Systems Leads to Energy Conservation, Higher Productivity and Farm Profitability <http://sco.lt/7p7EMi?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From link.springer.com <http://sco.lt/5gIcqm?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 7:49 PM <http://sco.lt/7p7EMi?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Jat, H.S., Choudhary, K.M., Nandal, D.P., Yadav, A.K. & Poonia, T. 2020. Environmental Management. 65: <http://sco.lt/7p7EMi?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1007/s00267-020-01273-w <http://sco.lt/5ySxAu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This 5 year study looked at the effect of CA on energy budget, water productivity and profitability in rice-wheat (RW) and maize-wheat (MW) based systems of the IGP of India. CA based RW and MW systems enhanced crop productivity by 10 and 16%, water productivity by 56 and 33% and profitability by 38 and 32% compared to their respective CT systems. CA based systems also recorded the highest net energy and energy-intensiveness levels of 251 and 300% compared to the respective CT systems. <http://sco.lt/7p7EMi?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6YnbpA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6qxw9I?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6qxw9I?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/798GTQ?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/798GTQ?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> No-tillage effects on grain yield and nitrogen requirements in hybrid rice transplanted with single seedlings: Results of a long-term experiment. <http://sco.lt/92YPEO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/92YPEO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/7RIanY?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 6:50 PM <http://sco.lt/92YPEO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Huang, M., Chen, J., Cao, F., Zou, Y. & Uphoff, N. 2019. Journal of Integrated Agriculture. 18 (1): 24-32 <http://sco.lt/92YPEO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/S2095-3119(17)61873-2 <http://sco.lt/7jSv7g?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study looks at the effect of no-tillage on hybrid rice in terms of yield and nitrogen requirement in China over a 10 year period. An interesting conclusion showed no difference in in yield, yield attributes and N-use between NT and CT. The data also showed that higher grain yield and N-use efficiency can be achieved with hybrid rice by transplanting a single seedling with or without tillage. <http://sco.lt/92YPEO?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/81dFRo?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/8JnZlw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8JnZlw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/8bxu64?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8u8EQC?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8u8EQC?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Diversity of arbuscular mycorrhizal fungi and nematodes in a 14-years no-tillage chronosequence. <http://sco.lt/91m0ci?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/91m0ci?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/9CIYkK?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 3:37 PM <http://sco.lt/91m0ci?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Carneiro, M.A.C., Assis, P.C.R., Paulino, H.B., Rocha, M.R. & Teixeira, R.A. 2019. Rhizosphere. 10: 100149. <http://sco.lt/91m0ci?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.rhisph.2019.100149 <http://sco.lt/4ow2Oe?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study looked at the conversion of native areas of the Cerrado to no-tillage on the population of arbuscular mycorrhiza and nematodes. Three areas with no-tillage after 7, 11 and 14 years were compared with areas not impacted by agriculture. The results showed either a slightly reduced, slightly improved or maintained the functional diversity of arbuscular mycorrhiza and nematodes after 14 years of cultivation. However, cultivated areas reduced the mycorrirhiza fungi and increased plant parasitic nematodes. <http://sco.lt/91m0ci?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5PGh2u?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5PGh2u?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/5hR1N2?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5hR1N2?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/5zbLhA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5zbLhA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Discriminant analysis of the participated farmers’ characteristics in the conservation agriculture project based on the learning transfer system. <http://sco.lt/951ZTM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From link.springer.com <http://sco.lt/6Hlg1I?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 3:10 PM <http://sco.lt/951ZTM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Ataei, P., Sadighi, H., Chizari, M. & Abbasi, E. 2020. Environment Development and Sustainability. on-line. <http://sco.lt/951ZTM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1007/s10668-019-00580-005 <http://sco.lt/6Zw0LQ?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study from Iran looked at the characteristics of the farmers who participated in a CA project based on a learning transfer system using a survey. They divided the into three groups, weak, moderate and strong learning transfer and then used discriminant analysis to see differences. Nine variables were identified as having significant affects on farmer's level of learning. <http://sco.lt/951ZTM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7AGezg?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7AGezg?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/7SQzJo?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7kbJdw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7kbJdw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Conservation agriculture as a climate change mitigation strategy in Zimbabwe. <http://sco.lt/4q028O?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From www.tandfonline.com <http://sco.lt/82ldy4?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - Today, 4:07 PM <http://sco.lt/4q028O?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> O'Dell, D., Eash, N.S., Hicks, B.B., Oetting, J.N. & Sauer, T.J. 2020. International Journal of Agricultural Sustainability. On-line. <http://sco.lt/4q028O?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1080/14735903.2020.1750254 <http://sco.lt/8KvyIC?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study investigated C-sequestration potential of CA in Zimbabwe. They used micrometeorological methods to measure CO2 flux from several alternative CA practices. Their results show CA practices produce less CO2 emissions. Overall, CA practices of no-till with use of cover crops produced less CO2 emissions than CT and fallow. <http://sco.lt/4q028O?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8vGcwS?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/9DQxGa?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/9DQxGa?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/4q4Quu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/4q4Quu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Minimum tillage and residue retention increase soil microbial population size and diversity: implications for conservation tillage. <http://sco.lt/6OEKHI?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/6OEKHI?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/58ElF2?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - Today, 3:40 PM <http://sco.lt/6OEKHI?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Li, Y., Zhang, Q., Cai, Y., Yang, Q. & Chang, S.X. 2020. Science of the total environment. 716: 137164 <http://sco.lt/6OEKHI?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.scitotenv.2020.137164 <http://sco.lt/5QP5ZA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This paper is a global meta-analysis looking at the effect of CA on soil microbial population size. Both NT and NT plus residue (NTS) increased microbial count compared to CT. Bacteria, fungi and actinomycetes were 3, 18 and 28% higher under NTS than NT and 38, 41, and 28% higher than CTS (CT plus residue). They conclude that response to minimal tillage and residue retention was consistently positive for soil microbial count. <http://sco.lt/6OEKHI?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/60jkDQ?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6Iu4XY?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6Iu4XY?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/6b4Org?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6b4Org?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Mulching is the most important of the three conservation agriculture principles in increasing crop yield in the short term, under sub-humid traopical conditions in Zimbabwe. <http://sco.lt/5fUYsq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/5fUYsq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/6tEjBo?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 7:28 PM <http://sco.lt/5fUYsq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Kodzwa, J.J., Gotosa, J. & Nyamangara, J. 2020. Soil and tillage research. 197: 104515 <http://sco.lt/5fUYsq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.still.2019.104515 <http://sco.lt/7BP3Vw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: Smallholder farmers in Sub-Saharan Africa fail to adopt all three CA principles because of lack of weed management methods (tillage), crop-livestock interactions (residue is an animal feed) and poorly developed markets for other diversified crops. Farmers do incorporate 1 or 2 principles but not all three.This study looked at these three principles to see what ones are most important for high yield with and without fertilizer. The results show that the order of importance for the three principles were mulch, reduced tillage and then rotation. The combined effect of all three on maize yields were higher than for CT and any two of the other principles together suggesting that all three give the highest yields. <http://sco.lt/5fUYsq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7ljiAC?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/83u2UK?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/83u2UK?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/8M4MoS?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8M4MoS?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Conservation agriculture based on diversified and high performance production system leads to soil carbon sequestration in subtropical environments. <http://sco.lt/5Km7RA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/5Km7RA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/8eEh8a?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 4:11 PM <http://sco.lt/5Km7RA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Gonçalves, D., Sa, J.C de M., Mishra, U., Fornari, A.J., Furlan, F.J.F., Ferreira, L.A., Inagaki, T.M., Romaniw, J., Ferreira, A. & Briedis, C. 2019. Journal of Cleaner Production. 219: 136-147. <http://sco.lt/5Km7RA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.jclepro.2019.01.263 <http://sco.lt/8wP1Si?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This paper looks at a farm using CA principles for 30 years to look at carbon sequestration. They used Century and Roth-C models to simulate the carbon stocks. Their data show that SOC continuously increased after CA practices from 1985 to 2015 and now is in equilibrium. Yields also increased with time with maize increasing more than wheat or soybeans. The paper presents data on the quantity of soil organic carbon increase over a 60 year period. <http://sco.lt/5Km7RA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/4rCpRA?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/59N9lI?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5RXU5Q?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/5RXU5Q?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Long-term effects of crop succession, soil tillage and climate on wheat yield and soil properties. <http://sco.lt/99dYKu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/99dYKu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/5jhoPY?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 29, 3:22 PM <http://sco.lt/99dYKu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Carcer, P.S., Sinaj, S., Santonja, M., Fossati, D. & Jeangros, B. 2019. Soil and Tillage Research. 190: 201-219. <http://sco.lt/99dYKu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.still.2019.01.012 <http://sco.lt/61s8jg?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This paper used data from a 50 year long-term trial that included climate, soil organic carbon, monoculture versus crop rotation and minimum tillage versus plowing on wheat yield in Switzerland. Wheat yield was 16% higher in rotation. There was difference in wheat yield due to tillage, but minimal tillage had 7% higher SOC than the plough treatment. Rotation had no effect on SOC. <http://sco.lt/99dYKu?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6K2T3o?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/6cCnNw?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6uN7i4?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/6uN7i4?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/7CXS2C?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/7CXS2C?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Increases in soil sequestered carbon under conservation agriculture cropping decrease the estimated greenhouse gas emissions of wetland rice using life cycle assessment. <http://sco.lt/7EsfzM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.jpeg] <http://sco.lt/7EsfzM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> From linkinghub.elsevier.com <http://sco.lt/7UhmMK?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> - May 26, 4:06 PM <http://sco.lt/7EsfzM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> Alam, M.K., Bell, R.W., & Biswas, W.K. 2019. Journal of Cleaner Production. 224: 72-87. <http://sco.lt/7EsfzM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> https://doi.org/10.1016/j.jclepro.2019.03.215 <http://sco.lt/7ms6gS?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1>'s insight: This study looked at GHG emissions from monsoon rice grown on puddled versus non-puddled soils, with and without residue retention in Bangladesh. A cradle to farm-gate Life Cycle analysis was used to calculate GHG emissions. The GHG emissions with non-puddling and low residue retention were 31% lower than puddling and crop residue retention. Non-puddled with residue retention had 16% GHG emissions compared to the puddled treatment. CH4 was the main GHG comprising 63-67% of the GHS's. But non-puddling with residue retention gave the highest rice yield. <http://sco.lt/7EsfzM?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8NClKi?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8fN5eq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8fN5eq?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> <http://sco.lt/8xXPyy?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.png] <http://sco.lt/8xXPyy?_tmc=S23l0d0Xk_IxZ4FoqhNtwtF2ri8SzY0c8aZ3_ypkT-s&track=1> [image: image.gif] [image: image.png] <https://drive.google.com/u/0/settings/storage?hl=en&utm_medium=web&utm_source=gmail&utm_campaign=manage_storage> <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);