*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE* *for sustainable agriculture and land management* Dear Subscribers, Please see herebelow the latest, April, 2018 CA Research Updates. Thank you Peter Hobbs for sharing. *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, Mar 26, 2018 at 8:20 PM Subject: FW: Latest Scoops on Conservation Agriculture Research Updates - April 2018 To: Amir Kassam <[log in to unmask]> Dear Amir: This is the latest, April, 2018 CA Research Updates. Can you send out to all your members of your listserve? Thanks Peter You can also review on-line at http://www.scoop.it/t/conse rvation-agriculture-by-conservation-ag The hard copy is below. *From: *"[log in to unmask]" <[log in to unmask]> *Date: *Monday, March 26, 2018 at 3:16 PM *To: *Peter Hobbs <[log in to unmask]> *Subject: *Fwd: Latest Scoops on Conservation Agriculture Research Updates - April 2018 ---------- Forwarded message ---------- From: *Scoop.it* <[log in to unmask]> Date: Mon, Mar 26, 2018 at 3:15 PM Subject: Latest Scoops on Conservation Agriculture Research Updates - April 2018 To: [log in to unmask] [image: Conservation Agriculture Research Updates - April 2018] <http://sco.lt/7CY7cn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Conservation Agriculture Research Updates - April 2018* <http://sco.lt/7CY7cn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> by Cornell Conservation Agriculture Group (soilhealth.org) <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Powered by [image: Scoop.it] <http://sco.lt/62rhAn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/mail/space.gif] *Reducing losses but failing to sequester carbon in soils: the case of conservation agriculture and integrated soil fertility management in the humid tropical agro-ecosystem of Western Kenya.* <http://sco.lt/50pSLZ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/8AsFDV?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 12:24 PM <http://sco.lt/50pSLZ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Sommer, R., B.K. Paul, J. Mukalama & J. Kihara. 2018. Agriculture, Ecosystems & Environment. 254: 82-91. <http://sco.lt/50pSLZ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.agee.2017.11.004 <http://sco.lt/8T2ZXd?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This study measured SOC in the top 15cm over 12 years in two agronomic long-term trials in Western Kenya. These trials include various levels – from absence to full adoption – of two widely promoted sustainable agricultural management practices: Integrated Soil Fertility Management (ISFM; i.e. improved varieties, mineral fertilizer and organic matter/manure incorporation) and Conservation Agriculture (CA; improved varieties, mineral fertilizer, zero-tillage and crop residues retention). None of the tested ISFM and CA treatments turned out successful in sequestering SOC long-term. Adopting zero-tillage and residue retention alone (as part of CA) could avoid SOC losses of on average 0.13tCha−1 yr−1, while this was 0.26tCha−1 yr−1 in response to mere inclusion of manure as part of ISFM. <http://sco.lt/50pSLZ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/8lCtrl?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/93NEBt?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/4yB2AL?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/5GLMUT?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *The adaptive capacity of maize-based conservation agriculture systems to climate stress in tropical and sub-tropical environments: A meta-regression of yields.* <http://sco.lt/6qIbar?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/5YVgob?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 12:10 PM <http://sco.lt/6qIbar?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Steward, P.R., A.J. Dougill, C. Thierfelder, C.M. Pittelkow, L.C. Stringer, M. Kudzala & G.M. Shackelford. 2018. Agriculture, Ecosystems & Environment. 251: 194-202. http:dx.doi.org/10.1016/j.agee.2017.09.019 <http://sco.lt/6qIbar?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This study for the sub-tropics and tropics, used meta-regression, in combination with global soil and climate datasets, to test four hypotheses: (1) that relative yield performance of conservation agriculture improves with increasing drought and temperature stress; (2) that the effects of moisture and temperature stress exposure interact; (3) that the effects of moisture and temperature stress are modified by soil texture; and (4) that crop diversification, fertilizer application rate, or the time since no-till implementation will enhance conservation agriculture performance under climate stress. The results show through meta-regression that conservation agriculture enhances the adaptive capacity of maize production in sub-Saharan Africa under drought and/or heat stress. However, in very wet seasons and on clay-rich soils, conservation agriculture yields less compared to conventional practices. <http://sco.lt/6qIbar?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/5qg18j?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/68qLSr?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/6R0fmz?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/6jB077?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Evaluating carbon sequestration for conservation agriculture and tillage systems in Cambodia using the EPIC model.* <http://sco.lt/7clc3N?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/71LKRF?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 11:45 AM <http://sco.lt/7clc3N?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Le, K.N., M.K. Jha, M.R. Reyes, J. Jeong, L. Dora, P.W. Gassman, L. Hok, J. Carlos de Moraes Sa & S. Boulakia. 2018. <http://sco.lt/7clc3N?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.agee.2017.09.009 <http://sco.lt/7JVelN?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This study evaluated SOC sequestration for several long-term rainfed cropping systems for CA and conservation tillage (CT) in Cambodia using the EPIC model. In all CA treatments, forage or legume cover crops were prior planted and intercropped with the primary crops to maintain full soil cover. Crop residue was found to highly influence SOC sequestration. Sediment loss in the CT treatments was found to be four times greater than CA treatments due to the CT tillage effects. The 20-year future simulations, using historical weather and automatically generated by EPIC, showed a decrease trend in SOC stocks in all CT treatments and an increase trend in most CA treatments. The CA treatments in combination with the maize rotation were demonstrated to be more efficient to manage SOC sequestration over CA with one continuous primary crop. <http://sco.lt/7clc3N?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/7bfz5V?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/7tqJPd?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/8C0djl?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/8UAy3t?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Genotype by tillage interaction and performance progress fro bread and durum wheat genotypes on irrigated raised beds.* <http://sco.lt/7Mij6f?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/8mLIO1?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 11:19 AM <http://sco.lt/7Mij6f?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Honsdorf, N., M.J. Mulvaney, R.P. Singh, K. Ammar, J. Burgueno, B. Govaerts & N. Verhulst. 2018. Field Crops Research. 216: 42-52. <http://sco.lt/7Mij6f?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.fcr.2017.11.011 <http://sco.lt/94Vci9?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This paper looks at whether tillage should be an evaluation factor in breeding programs. 26 bread and durum wheat genotypes created from 1964-2009 were tested for yield and agronomic performance over 6 years in Mexico using conventional (CT) tillage and permanent raised beds with full and reduced irrigation. Breeding progress was achieved irrespective of agronomic treatment. Tillage influenced plant growth and number of grains per m2 in both wheat types. In bread wheat, genotype by tillage interaction was significant for yield, test weight, and growth parameters. However, no cross-over effects were detected and rank changes were small. In durum wheat, genotype by tillage interaction was only significant for plant growth. The results do not indicate the need for separate breeding programs. However, the question of a need for selection under zero tillage to increase breeding progress is yet to be answered. <http://sco.lt/7Mij6f?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/9Mfx2H?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/4hDV8z?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/4zNpT7?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/5HY9nF?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Conservation agriculture effects on crop and water productivity, profitability and soil organic carbon accumulation under a maize-wheat cropping system in the Noth-western Indo-Gangetic Plains.* <http://sco.lt/8gq1cv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/5ZiU7N?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 10:53 AM <http://sco.lt/8gq1cv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Das, T.K., Y.S. Saharawat, R. Bhattacharyya, S. Sudhishri, K.K. Bandyopadhyay, A.R. Sharma & M.L. Jat. 2018. Field Crops Research. 215: 222-231. <http://sco.lt/8gq1cv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.fcr.2017.10.021 <http://sco.lt/5rsoRV?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This is another paper that looks at inclusion of maize instead of rice in the RW systems of NW India. This paper also looks at the impacts of CA management on MW systems in a three year experiment to look at crop and water productivity, profitability and soil organic carbon accumulation. Results showed that the plots under permanent broad bed with residue (PBB+R) and without residue (PBB) resulted in 29 and 26% higher maize grain yield, respectively than conventional tillage (CT) (2.6tha−1), but wheat grain yields were comparable in all the treatments in first year. The PBB+R was superior to other practices. This also saves water through higher water-use efficiency, and lead to accumulation of more carbon in soil with higher sequestration potential, besides giving sustainable production of maize and wheat over the years. It also gave higher net returns compared to CT. <http://sco.lt/8gq1cv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/6A38ld?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/6SDT5l?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/6kNnPt?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/72Y7k1?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Importance of cover crops in alleviating negative effects of reduced soil tillage and promoting soil fertility in winter wheat cropping system.* <http://sco.lt/7On8wj?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From www.sciencedirect.com <http://sco.lt/7KiS49?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 10:21 AM <http://sco.lt/7On8wj?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Buchi, L., M. Wendling, C. Amosse, M.Necpalova, & R. Charles. 2018. Agriculture, Ecosystems & Environment. 256: 92-104. <http://sco.lt/7On8wj?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.agee.2018.01.005 <http://sco.lt/7csmOH?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: Reduced tillage can lead to yield reduction and weed problems, especially in the early stages of adoption. This paper looks at cover crops as a way to control weeds and sustain yields. 8 cover crop treatments were used in a long term experiment in Switzerland. Cover crops were cultivated for a short 2 months between two winter wheat crops. In all treatments the cover crops suppressed weed biomass compared to no cover crops. Wheat yield was higher in the minimum tillage treatment than the plough treatment. Results demonstrated that the presence of a well-developed cover crop, even for only two months, sustains wheat yield in a no till treatment. It impacts also soil fertility and nutrient cycling. <http://sco.lt/7On8wj?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/7v36iP?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/8DDR2X?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/8VNlMf?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/8nY5gn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Early adoption of conservation agriculture practices: Understanding partial compliance in programs with multiple adoption decisions.* <http://sco.lt/8y0Twn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/95iQ0v?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 12:16 PM <http://sco.lt/8y0Twn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Ward, P.S., A.R. Bell, K. Droppelmann & T.G. Benton. 2018. Land Use Policy. 70: 27-37. <http://sco.lt/8y0Twn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.landusepol.2017.10.001 <http://sco.lt/4iLtfF?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This study looks at whether CA can influence land degradation and soil erosion challenges in Southern Africa. Despite the many potential benefits of CA, however, adoption remains low. Yet relatively little is known about the decision making process in choosing to adopt CA or any of its constituent practices. Unlike what is implicitly assumed when these packages of practices are introduced, farmers view adoption of CA as a series of separate decisions, rather than a single decision. They find strong evidence of interrelated decisions, particularly among mulching crop residues and practicing zero tillage, suggesting that mulching residues and intercropping or rotating with legumes introduces a multiplier effect on the adoption of zero tillage. <http://sco.lt/8y0Twn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/50WDzN?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/5IgYJV?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/5aqsdd?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/5t1Cxl?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Combined effects of cover crops, mulch, zero-tillage and resistant varieties on Striga asiatica (L.) Kuntze in rice-maize rotation systems.* <http://sco.lt/69nArh?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/6BBXHt?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 11:55 AM <http://sco.lt/69nArh?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Randrianjafizanaka, M.T., P. Autfray, A.P. Andrianaivo, I.R. Ramonta & J. Rodenburg. 2018. Agriculture, Ecosystems & Environment. 256: 23-33. <http://sco.lt/69nArh?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.agee.2017.12.005 <http://sco.lt/6TLrc1?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: Low input rice-maize systems in the hills of Madagascar suffer from erratic rainfall, poor soils, soil erosion and infestation with Striga. They looked at CA (ZT plus permanent soil cover by intercropping of legumes and residue mulches) to remedy these problems. In all CA practices S. asiatica infection was significantly reduced. Best results were obtained with Stylosanthes guianensis (CAST). This species also suppressed ordinary weeds much better than other cover crops. With CAST, average parasite emergence was delayed by 7.5 days (in rice) and 6.3 days (in maize) and infection levels were reduced by 79% (in rice) and 92% (in maize) compared to the conventional farmer practice (CONV). They did conclude, though, that even the combination of zero-tillage, crop residue mulching, cover crops and resistant rice varieties does not entirely prevent S. asiatica parasitism and seed bank increase. Additional measures, targeted to escaping weeds, would be required for fully effective and long-term control. <http://sco.lt/69nArh?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/6lWBw9?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/73gWGH?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/7LqqaP?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/7e1AuX?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Heat stress and yield stability of wheat genotypes under different sowing dates across agro-ecosystems in India.* <http://sco.lt/5oVG6r?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/7wBVEf?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 11:33 AM <http://sco.lt/5oVG6r?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Jat, R.K., P. Singh, M.L. Jat, M. Dia, H.S. Sidhu, S.L. Jat, D. Bijarniya, H.S. Jat, C.M. Parihar, U. Kumar & S.L. Ridaura. 2018. Field Crops Research. 218: 33-50. <http://sco.lt/5oVG6r?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.fcr.2017.12.020 <http://sco.lt/8ELpYn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This paper looks at the effect of shifted planting dates of wheat on mitigating the potential increase in food insecurity resulting from temperature rise due to climate change. A diverse set of twenty-one genotypes was evaluated over three years (2012–2014) under ten levels of crop management practices (ten different dates of sowing: D01-D10) across three agro-ecological regions (BR (Bihar), MP (Madhya Prdesh) and PB (Punjab)) of India in replicated trials. Results revealed that the impact of shifted sowing dates on yield stability was unevenly spread across management practices. Across locations, the genotype ‘CSW 18’ (G03), ‘DPW 621-50’ (G05), and ‘BAZ’ (G01) were the best performers and highly stable in early, normal and later sowing dates, respectively. This would be important for ZT systems where earlier planting is more feasible than with CT. <http://sco.lt/5oVG6r?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/8WW9sv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/8ogUD3?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/96qoXB?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/4jUIBV?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Enzymes and C-pools as indicators of C build up in short-term conservation agriculture in savanna ecosystem in Cambodia.* <http://sco.lt/6PYBdJ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/51ecVd?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 11:05 AM <http://sco.lt/6PYBdJ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Hok, L., J.C. de Moraes Sa, M. Reyes, S. Boulakia, F. Tivet, V. Leng, R. Kong, C. Briedis, D. da Cruz Hartman, L.A. Ferreira, T.M. Inagaki, D.R.P. Goncalves & P.T. Bressan. 2018. Soil and Tillage Research. 177: 125-133. <http://sco.lt/6PYBdJ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> http://dx.doi.org/10.1016/j.still.2017.11.015 <http://sco.lt/5Jowpl?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This paper uses soil organic carbon and soil enzymes as indicators of short term impacts of soil management. It looks at the impact of tillage and crop rotations with diverse residue inputs on these two indicators in rice-, soybean-, and cassava-based cropping systems in Cambodia. After 5 years experiment period, greater hot-water extractable organic C (HWEO-C) stocks of 61%, 55% and 53%, and permanganate oxidizable C (POX-C) stocks of 23%, 21% and 32% were attributed to NT than those in CT soils under RcCS, SbCS and CsCS, respectively, at 0–5 cm soil layer. They conclude that short-term NT crop rotations with permanent soil cover significantly increased the storage of HWEO-C and POX-C and enhanced β-glucosidase and arylsulfatase activities at the surface soil layer as a result of higher biomass-C input and the absence of soil disturbance. <http://sco.lt/6PYBdJ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/5bzH9t?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/5u9bU1?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/6CJvo9?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/6UUG8H?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Evaluating alternatives to rice-wheat system in Western Indo-Gangetic Plains: Crop yields, water productivity and economic profitability.* <http://sco.lt/8uBAjx?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/6meaSP?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 10:36 AM <http://sco.lt/8uBAjx?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> Choudhary, K.M., H.S., Jat, D.P., Nandal, D.K., Bishnoi, J.M., Sutaliya, M. Choudhary, Yadvinder-Singh, P.C., Sharma & M.L. Jat. 2018. Field Crops Research. 218: 1-10. http:dx.doi.org/10.1016/j.fcr.2017.12.023 <http://sco.lt/8uBAjx?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: Issues of water deficits and low water productivity of rice-wheat in northwest India led to research on replacing rice with less water requiring maize. It also looked at CA-based management (tillage, residue (R) and integration of mungbean (MB)), precision water management (PI) on crop and water productivity and economics in RW and MW systems. It also looked at fresh beds versus permanent beds. The results show that CA based sustainable intensification of MW systems (PBMW + MB + R + PI) is a better alternative than the RW system (ZTRW + MB + R + PI) as it provides opportunities for saving 79% of precious water, enhancing crop and water productivity by 12 and 145%, respectively along with high (34%) economic benefits. <http://sco.lt/8uBAjx?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/74oumX?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/7MzF6f?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/7f9ZQn?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/7xJtkv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> *Adoption and Abandonment of Partial Conservation Technologies in Developing Economies: The Case of South Asia* <http://sco.lt/6zk2iX?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> From linkinghub.elsevier.com <http://sco.lt/8FUE53?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> - Today, 10:09 AM <http://sco.lt/6zk2iX?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> D'Souza, A., & A.K. Mishra. 2018. Land Use Policy. 70: 212-223. <http://sco.lt/6zk2iX?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> https://doi.org/10.1016/j.landusepol.2017.10.015 <http://sco.lt/8XeYPB?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/v3/white_quote.png] *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>'s insight: This paper looks at the adoption of CA -- partial and complete - in South Asia (India, Nepal and Bangladesh). It looks at the factors affecting adoption and did-adoption with particular reference to the role of spouses and social networks. They find social networks have a significant positive effect on adoption but negative for abandonment. Spouses also have a positive effect on adoption. Farmers that had seen partial CA in action were more likely to adopt than if they just heard from neighbors. <http://sco.lt/6zk2iX?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/resources/img/export/smallbtn_twitter_2.png] <http://sco.lt/8posjJ?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_facebook_2.png] <http://sco.lt/97zD3R?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_linkedin_2.png] <http://sco.lt/4kcghl?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1>[image: https://www.scoop.it/resources/img/export/smallbtn_scoopit_2.png] <http://sco.lt/52n11t?_tmc=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM&track=1> [image: https://www.scoop.it/mv?id=0OJeHDE-5b0h-hH7CxhtxmTGPbxYVhvB8PaClYqIrkM] ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);