*CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE* *for sustainable production intensification* Dear Subscribers, I am forwarding herewith the Conservation Agriculture Research Updates for February 2016 from the Cornell CA Group. *Amir Kassam * *Moderator* e-mail: [log in to unmask] URL: www.fao.org/ag/ca ---------- Forwarded message ---------- From: Peter Hobbs <[log in to unmask]> Date: Mon, Feb 15, 2016 at 5:38 PM Subject: CA February Newsletter To: Amir Kassam <[log in to unmask]> Cc: Lucy Hill Fisher <[log in to unmask]>, Emily Virginia Ambrose < [log in to unmask]>, Erika Styger <[log in to unmask]>, Devon L Jenkins < [log in to unmask]> Dear Amir: Here is our February 2016 Conservation Agriculture Research Update. You can also review on line at http://www.scoop.it/t/conservation-agriculture-by-conservation-ag Can you send this out to people who get your list serve material? The hard copy is below. Peter [image: Conservation Agriculture Research Updates - February 2016] <http://sco.lt/6qMXhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Conservation Agriculture Research Updates - February 2016 <http://sco.lt/6qMXhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> by Cornell Conservation Agriculture Group (soilhealth.org) <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Powered by [image: Scoop.it] <http://sco.lt/6WS02L?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Quantifying changes to the global warming potential of rice wheat systems with the adoption of conservation agriculture in northwestern India <http://sco.lt/5tAF4z?track_p_id=4UJN26cZeMI_RJwT%406HFYmu&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.sciencedirect.com <http://sco.lt/5DTK1R?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 10, 10:20 PM <http://sco.lt/5tAF4z?track_p_id=4UJN26cZeMI_RJwT%406HFYmu&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Agnes Tirol-Padre, Munmun Rai, Virender Kumar, Mahesh Gathala, Parbodh C. Sharma, Sheetal Sharma, Rakesh Kumar Nagar, Sandeep Deshwal, Love K. Singh, Hanuman S. Jat, Dinesh K. Sharma, Reiner Wassmann, Jagdish Ladha. 2016. Quantifying changes to the global warming potential of rice wheat systems with the adoption of conservation agriculture in northwestern India. Agriculture, Ecosystems, and Environment. 219: 125-137. doi: 10.1016/j.agee.2015.12.020. <http://sco.lt/5tAF4z?track_p_id=4UJN26cZeMI_RJwT%406HFYmu&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: Used 4 cropping system scenarios in Haryana, India with different CA components and N-rates. Measured methane and nitrous oxide fluxes in farmer fields. CH4 emissions controlled by floodwater with fertilizer N having no effect. But fertilizer N did affect N2O emissions. These could be avoided by applying N to wet soil or irrigating not later than one day after application. Crop residues applied to soil surface had no effect on CH4 or N2O. CA can reduce GWP by 16-26% compared to conventional RW but mainly due to decrease in diesel and electricity consumption than direct emissions of CH4 or N2O which were higher in maize-wheat than rice-wheat systems. <http://sco.lt/5tAF4z?track_p_id=4UJN26cZeMI_RJwT%406HFYmu&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5VdeLZ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5nnyfh?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/65yIzp?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6O8dJx?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Save and Grow in practice: maize, rice, wheat | FAO | Food and Agriculture Organization of the United Nations <http://sco.lt/8oohBB?track_p_id=3rom8gET3m_VwlKjtZlv2bg&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8oohBB?track_p_id=3rom8gET3m_VwlKjtZlv2bg&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.fao.org <http://sco.lt/7leLNx?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 10, 10:10 PM <http://sco.lt/8oohBB?track_p_id=3rom8gET3m_VwlKjtZlv2bg&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Timothy G. Reeves, Graeme Thomas, Gordon Ramsay,Shivaji Pandey. 2016. Save and Grow in practice: maize, rice, wheat A guide to sustainable cereal production. Food and Agriculture Organization of the United Nations. Available at: <http://sco.lt/8oohBB?track_p_id=3rom8gET3m_VwlKjtZlv2bg&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> http://www.fao.org/publications/save-and-grow/maize-rice-wheat/en/ <http://sco.lt/7leLNx?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: This publication uses the FAO "Save and Grow" model for sustainable intensification for the world's key food security crops with examples form Africa, Asia and Latin America. It shows how ecosystem based farming systems are helping smallholder farmers boost cereal yields, improve their livelihoods and reduce environmental impacts with the emergence of climate change. <http://sco.lt/8oohBB?track_p_id=3rom8gET3m_VwlKjtZlv2bg&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6gIxe5?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6yTHyD?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7GdcIL?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7YnwcT?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Conservation agriculture affects arthropod community composition in a rainfed maize–wheat system in central Mexico <http://sco.lt/7ZqAXR?track_p_id=bZM3NmDZAbym5s2qP0_uyeW&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.sciencedirect.com <http://sco.lt/7qyGwb?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 7:17 PM <http://sco.lt/7ZqAXR?track_p_id=bZM3NmDZAbym5s2qP0_uyeW&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Ariel Riversa, Mary Barberchecka, Bram Govaertsb, Nele Verhulstb. 2016. Conservation agriculture affects arthropod community composition in a rainfed maize–wheat system in central Mexico. Applied Soil Ecology. 100: 81-90. doi:10.1016/j.apsoil.2015.12.004 <http://sco.lt/7ZqAXR?track_p_id=bZM3NmDZAbym5s2qP0_uyeW&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: One of the benefits of CA is improving soil quality including biological diversity of the soil. This paper describes how CA affects arthropod predators and pests in a maize-wheat system in Mexico under no-till with residue versus tillage with no residue. Conclude that the type and amount of residue that remains on the soil surface influences arthropod dynamics that helps control insect pests. Spiders more in no-till treatments with residue retained. <http://sco.lt/7ZqAXR?track_p_id=bZM3NmDZAbym5s2qP0_uyeW&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/898bGj?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8RIvar?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8jTFuz?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/91daF7?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Termite prevalence and crop lodging under conservation agriculture in sub-humid Zimbabwe <http://sco.lt/5VKHOj?track_p_id=43hQV76XjxO_kCTERD15sTU&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.sciencedirect.com <http://sco.lt/9JnuZF?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 7:07 PM <http://sco.lt/5VKHOj?track_p_id=43hQV76XjxO_kCTERD15sTU&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Eleanor Florence Mutsamba, Isaiah Nyagumbo, Paramu Mafongoya. 2016. Termite prevalence and crop lodging under conservation agriculture in sub-humid Zimbabwe. Crop Protection. 82: 60-64. doi: 10.1016/j.cropro.2016.01.004 <http://sco.lt/5VKHOj?track_p_id=43hQV76XjxO_kCTERD15sTU&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: Residue retention in SSA is constrained by livestock grazing but also termite incidence. This paper looks at termites prevalence and crop damage of different amounts of surface applied maize residues on maize yields under CA and conventional tillage. Lodging increased in the CA systems but no significant difference was observed in lodging under CA with increasing residue rates. Interestingly higher maize yields were obtained under CA compared to conventional (average 30%) but extra residue did not increase maze yields. <http://sco.lt/5VKHOj?track_p_id=43hQV76XjxO_kCTERD15sTU&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/4wRODZ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5EbiXh?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5Wm2rp?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5owNBx?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Gender and conservation agriculture in East and Southern Africa: towards a research agenda <http://sco.lt/7obJIn?track_p_id=3SYY9Hs0De_32dTztnHrhpJ&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.tandfonline.com <http://sco.lt/676hW5?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 6:39 PM <http://sco.lt/7obJIn?track_p_id=3SYY9Hs0De_32dTztnHrhpJ&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Cathy Rozel Farnworth, Frédéric Baudron, Jens A. Andersson, Michael Misiko, Lone Badstue, Clare M. Stirling. 2016. Gender and conservation agriculture in East and Southern Africa: towards a research agenda. International Journal of Agricultural Sustainability. 14(2): pg.142-165. doi: 10.1080/14735903.2015.1065602. <http://sco.lt/7obJIn?track_p_id=3SYY9Hs0De_32dTztnHrhpJ&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: There is a dearth of CA studies that consider gender and gender relations to adoption. This is the subject of this paper for East and Southern Africa. CA interventions would have implications on labor needs and allocation, investment decisions on mechanization and use of inputs, crops grown, pest and animal interactions and household nutrition. It suggests this issue needs more attention. <http://sco.lt/7obJIn?track_p_id=3SYY9Hs0De_32dTztnHrhpJ&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6PH1qD?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6hRMAL?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6zbgUT?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7Hm0ob?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Effects of conservation agriculture on crop productivity and water-use efficiency under an irrigated pigeonpea–wheat cropping system in the western Indo-Ganget... <http://sco.lt/9AGqwL?track_p_id=erhW5X6blYQoPa26oabyo_P&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From journals.cambridge.org <http://sco.lt/7ZwL8j?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 6:13 PM <http://sco.lt/9AGqwL?track_p_id=erhW5X6blYQoPa26oabyo_P&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> T.K. Das, K.K. Bandyopadhyay, Ranjan Bhattacharyya, S. Sudhishri, A.R. Sharma, U.K. Behera, Y.S. Saharawat, P.K. Sahoo, H. Pathak, A.K. Vyas, L.M. Bhar, H.S. Gupta, R.K. Gupta, M.L. Jat. 2016. Effects of conservation agriculture on crop productivity and water-use efficiency under an irrigated pigeonpea-wheat cropping system in the western Indo-Gangetic Plains. The Journal of Agriculture Science. 16 pages. Published on-line 19 January 2016. doi: 10.1017/S0021859615001264 <http://sco.lt/9AGqwL?track_p_id=erhW5X6blYQoPa26oabyo_P&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: This 3 year study looked at pigeon pea-wheat system under CA for yield and water use efficiency in Western IGP. Conventional tillage was compared to no-till on permanent beds (PNB) with and without residue. The best PP yields were on permanent beds with residue. Wheat grain yields were similar to CT in all three years. Suggests bed planting PP-W is a useful technology in the region. <http://sco.lt/9AGqwL?track_p_id=erhW5X6blYQoPa26oabyo_P&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7s6fSr?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8AGzmz?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8SRK77?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8kbeRF?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Tillage, residue and nitrogen management effects on methane and nitrous oxide emission from rice–wheat system of Indian Northwest Indo-Gangetic Plains <http://sco.lt/8mCjNB?track_p_id=ed2Xrjwhbumbbx27WhYHW_5&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.tandfonline.com <http://sco.lt/92lylN?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 10, 10:13 PM <http://sco.lt/8mCjNB?track_p_id=ed2Xrjwhbumbbx27WhYHW_5&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Tek B. Sapkota, M. L. Jat, Vivek Shankar, Love K. Singh, Munmun Rai, M. S. Grewal & Clare M. Stirling. 2015. Tillage, residue and nitrogen management effects on methane and nitrous oxide emission from rice–wheat system of Indian Northwest Indo-Gangetic Plains. Journal of Integrative Environmental Sciences. 16 pages. Published on-line on 27 November 2015 doi: 10.1080/1943815X.2015.1110181. <http://sco.lt/8mCjNB?track_p_id=ed2Xrjwhbumbbx27WhYHW_5&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: They measured CH$ and N2O fluxes under 3 tillage and residue management systems and 4 N-levels in NW India. Significant CH4 only in the conventional RW system. irrespective of N-level. But N-level did affect N2O emissions. Highest under crop establishment phase using 80% recommended dose.Overall ZT-based RW system reduced CH4 emission but this benefit is counterbalanced by higher N2O production compared to CT-based RW system. <http://sco.lt/8mCjNB?track_p_id=ed2Xrjwhbumbbx27WhYHW_5&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/9KwJ5V?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/4xZmjp?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5Fk73x?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5XuRO5?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Development of conservation agriculture (CA) systems in Malawi: lessons learned from 2005 to 2014. <http://sco.lt/8Qfk3d?track_p_id=8lODZL5JM8aDLp8_cw5%40M6s&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From journals.cambridge.org <http://sco.lt/5q4liD?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 7:20 PM <http://sco.lt/8Qfk3d?track_p_id=8lODZL5JM8aDLp8_cw5%40M6s&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Christian Thierfelder, W. Trent Bundersons, Zwide D. Jeres, Munyaradzi Mutenje, Amos Ngwira. 2015. Development of Conservation Agriculture (CA) Systems in Malawi: Lessons Learned from 2005 to 2014. Experimental Agriculture.26 pages. Published on-line 20 November 2015doi:10.1017/S0014479715000265 <http://sco.lt/8Qfk3d?track_p_id=8lODZL5JM8aDLp8_cw5%40M6s&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: CA was introduced to Malawi to address soil degradation, declining yields and mitigate climate change. CA oubtyielded conventional methods in two Districts by 22 and 31% and increased incomes by 50 and 83% using 28-39 less labor days. Although successful there are still issues of residue retention, weed control, rotations, pest and disease control and socioeconomic constraints. But these are researchable issues at the local level. <http://sco.lt/8Qfk3d?track_p_id=8lODZL5JM8aDLp8_cw5%40M6s&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/68F62L?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6QPQMT?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6iZkgb?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/70k50j?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Does conservation agriculture deliver climate change mitigation through soil carbon sequestration in tropical agro-ecosystems? <http://sco.lt/7uhgbB?track_p_id=drUvvY%40CVotvLn8sxhYU_d6&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.sciencedirect.com <http://sco.lt/7IuPKr?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 7:14 PM <http://sco.lt/7uhgbB?track_p_id=drUvvY%40CVotvLn8sxhYU_d6&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> David S. Powlson, Clare M. Stirling, Christian Thierfelder, Rodger P. White, M.L. Jat. 2016. Does conservation agriculture deliver climate change mitigation through soil carbon sequestration in tropical agro-ecosystems? Agriculture, Ecosystems, and Environment. 220: 164-174. doi:10.1016/j.agee.2016.01.005 <http://sco.lt/7uhgbB?track_p_id=drUvvY%40CVotvLn8sxhYU_d6&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: CA is claimed to mitigate climate change through soil carbon sequestration. This paper is a meta-analysis of SOC with CA practices in SSA and IGP (Asia). In IGP CA compared to conventional increased SOC by 0.16 to o.49 Mg C/ha/yr. In SSA increases were more, 0.28 to 0.96 but with much greater variation and a significant number of cases with no change. The authors warn that CA C increases can be overestimated if sampling is not done properly. They also suggest that in IGP where nitrogen fertilizer use is already high, improved management of nitrogen would be a better way to mitigate climate change.They conclude that CA should be promoted for its many benefits but that any climate change mitigation is just an additional possible benefit and not a major policy driver for its adoption. <http://sco.lt/7uhgbB?track_p_id=drUvvY%40CVotvLn8sxhYU_d6&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7b4jez?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7tF3z7?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8BPOJF?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8TZidN?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Maize productivity and profitability in Conservation Agriculture systems across agro-ecological regions in Zimbabwe: A review of knowledge and practice <http://sco.lt/84qqUz?track_p_id=5oymcy8V7Od4_Io2zhTZTrp&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.sciencedirect.com <http://sco.lt/8lk2xV?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 7:00 PM <http://sco.lt/84qqUz?track_p_id=5oymcy8V7Od4_Io2zhTZTrp&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Paramu Mafongoya, Leonard Rusinamhodzi, Shephard Siziba, Christian Thierfelder, Brighton M. Mvumi, Brighton Nhau, Lewis Hove, Pauline Chivenge. 2016. Maize productivity and profitability in Conservation Agriculture systems across agro-ecological regions in Zimbabwe: A review of knowledge and practice. Agriculture, Ecosystems, and Environment. 220: 211-225. doi:10.1016/j.agee.2016.01.017 <http://sco.lt/84qqUz?track_p_id=5oymcy8V7Od4_Io2zhTZTrp&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: This paper looks at direct (no-till), rip-line and basin seeding with maize on yield, soil health and profitability across agro-ecological regions of Zimbabwe over 6 years using a review of literature and a meta-analysis. Overall CA yielded better than conventional although there was a yield decline the first two years. direct seeding gave higher yields than rip-line or basins. CA reduced erosion, bulk density and increased water content in most studies. With more residue CA had more macro-fauna abundance and diversity than conventional, especially termites. More labor was needed for hand hoeing in CA but herbicides reduced this labor cost. CA benefits included earlier planting, weeding, fertilizer and herbicide use, and proper training on equipment use. The weeding, extra fertilizer and herbicide cost makes CA less economic. rip-line seeding was best in drier areas than direct seeding. <http://sco.lt/84qqUz?track_p_id=5oymcy8V7Od4_Io2zhTZTrp&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/93uNHd?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/9M4hbl?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/4yiBG5?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5GsVaD?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Why do medium- and large-scale farmers succeed practicing CA and small-scale farmers often do not? – experiences from Paraguay <http://sco.lt/8O5AYr?track_p_id=5FIc5E6c6GFy_YbQhTq3bec&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> From www.tandfonline.com <http://sco.lt/5Z2puL?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> - February 8, 6:29 PM <http://sco.lt/8O5AYr?track_p_id=5FIc5E6c6GFy_YbQhTq3bec&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Rold Derpsch, Dirk Lange, Georg Birbaumer, Ken Moriya. 2015. Why do medium and large-scale farmers succeed practicing CA and small-scale farmers often do not?- Experiences from Paraguay. International Journal of Agricultural Sustainability. 13 pages. Published on-line 02 Nov 2015 doi:10.1080/14735903.2015.1095974 <http://sco.lt/8O5AYr?track_p_id=5FIc5E6c6GFy_YbQhTq3bec&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: Many medium and large scale farmers with tractor-based farming have moved to CA and no-tillage technologies in Paraguay, Brazil and Argentina. Few wish to return to a conventional system. The same is not true with smaller farms with animal traction or manual farming. This is discussed in this paper. Suggest two reasons for this. One is the inability of small-scale farmers to cope with factors related to CA and the other with extension approaches and strategies to promote this knowledge and learning intensive management system. They suggest adoption of adaptable and long term approaches to CA with smallholders. <http://sco.lt/8O5AYr?track_p_id=5FIc5E6c6GFy_YbQhTq3bec&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/5rDAET?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/69NUYb?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6RXosj?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/6ji9Cr?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Sustainable Intensification Revisited <http://sco.lt/5BodFp?track_p_id=7COQYLm56J0jl8_3Jj3X%40Zq&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> February 8, 6:04 PM <http://sco.lt/5BodFp?track_p_id=7COQYLm56J0jl8_3Jj3X%40Zq&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> Seth Cook, Laura Silici, Barbara Adolph and Sarah Walker. 2015. Sustainable Intensification Revisited. International Institute for Environment and Development, Natural Resources Group. Available at: <http://sco.lt/5BodFp?track_p_id=7COQYLm56J0jl8_3Jj3X%40Zq&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> http://pubs.iied.org/pdfs/14651IIED.pdf <http://sco.lt/71sTWz?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/4vIzhJ?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1>'s insight: What does Sustainable Intensification mean? It originally meant producing a higher level of output from the same area of land while minimizing environmental impacts. The authors indicate that some NGO's are worried that SI is repackaging of intensive, high input models and using biotech as a means to achieve it. While the NGO propose agroecokogy and genetics as a way to increase productivity. Sustainability has also met with reservations since it needs to include social and economic elements such as livelihoods, equity, social justice and economic viability. Also the need to look at the farming system as a whole including livestock is needed. This paper sifts through these debates and inquires what is needed for the future of agriculture and food security <http://sco.lt/5BodFp?track_p_id=7COQYLm56J0jl8_3Jj3X%40Zq&_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7K2nr7?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7cD8BF?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/7uNSVN?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> <http://sco.lt/8CXmpV?_tmc=bnLCw0qBuRsU50UQ4gKwidY4N3woi2JDDDwVpLxDXUM&track=1> ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);