*PRACTICE** Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF* *for sustainable agriculture and land management* Dear Subscribers, Please see herebelow the latest July CA newsletter from Professor Peter Hobbs at Cornell. Apologies for any cross-posting. Thank you Peter for sharing. *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, 29 Jun 2020 at 15:53 Subject: Latest July CA newsletter To: Amir Kassam <[log in to unmask]> Dear Amir: Here is our July 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. Peter An easier link to see all of the research papers on CA is as follows: See our full research database at: 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. [image: Conservation Agriculture Research Updates - July 2020] <http://sco.lt/4zOzvk?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Conservation Agriculture Research Updates - July 2020 <http://sco.lt/4zOzvk?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> by Cornell Conservation Agriculture Group (soilhealth.org) <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Powered by [image: Scoop.it] <http://sco.lt/62rhAn?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Friends or foes? Population dynamics of beneficial and detrimental aerial arthropods under Conservation Agriculture. <http://sco.lt/6W51qS?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/7Zilfs?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 5:17 PM <http://sco.lt/6W51qS?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Mhlanga, B., Muoni, T., Mashavakure, N., Mudadirwa, D., Mulenga, R., Sitali, M. & Thierfelder, C. 2020. Biological Control. 148: 104312. <http://sco.lt/6W51qS?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.biocontrol.2020.104312 <http://sco.lt/7rt600?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: Pest control is a critical practice in crop production and promoting biological control is desirable. This study collected arthropod species diversity data from a 4 year trial in Zambia comparing CA with conventional practices (CP) specifically looking at beneficial and detrimental arthropods. Higher diversity was observed in CA systems compared to CP except in a low rainfall year where CP had no rotation (CP-M). More beneficial and detrimental arthropods were recorded in a CA system with a 3-year rotation of maize, cotton and sunnhemp. The CP-M treatment recorded the highest detrimental arthropods. Reduced soil disturbance, crop residue and crop diversity in CA plots attracted beneficial arthropods and so is suggested is better for biological control. <http://sco.lt/6W51qS?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8A3QK8?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8SDkeG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8kO4yO?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/92YPIW?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Energy use efficiency of crop residue management for sustainable energy and agriculture conservation in NW India. <http://sco.lt/6s9LCy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/9Kijce?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 4:48 PM <http://sco.lt/6s9LCy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Jat, H.S., Jat, J.D., Nanwal, R.K., Lohan, S.K., Yadav, A.K., Poonia, T., Sharma, P.C. & Jat, M.L. 2020. Renewable Energy. 155: 1372-1382. <http://sco.lt/6s9LCy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.renene.2020.04.046 <http://sco.lt/4xMDGy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: The Indo-Gangetic Plains of South Asia suffer from reduced farm profitability, degraded natural resources and energy deficits with conventional farm practices. Burning of rice crop residues is also an air pollution problem. A five year study concluded that crop residue biomass contributed the most (79%) in total input energy (renewable) in CA based systems whereas fertilizer application contributed the most (50%) to total energy (non-renewable) in conventional systems maize-wheat systems. <http://sco.lt/6s9LCy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5FWXb6?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5XgrvE?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5prCFM?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/681WZU?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> A global perspective on sustainable intensification research <http://sco.lt/6fjOGe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From www.nature.com <http://sco.lt/6QBqtc?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 3:53 PM <http://sco.lt/6fjOGe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Cassman, K.G. & Grassini, P. 2020. Nature Sustainability. 3 (4): 262-268. <http://sco.lt/6fjOGe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1038/s41893-020-0507-8 <http://sco.lt/6iMBDk?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: This review agrees that food demand without further loss of natural ecosystems requires sustainable intensification but discusses what research will be needed to achieve it. The report is optimistic assuming a well-prioritized and well funded research portfolio and appropriate policies and institutions to support it. <http://sco.lt/6fjOGe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/70WVXs?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7Igps0?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7arAC8?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7t1UWG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Tillage, crop establishment, residue management and herbicide applications for effective weed control in direct seeded rice of eastern Indo-Gangetic Plains of South Asia. <http://sco.lt/8EnNbc?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/8BBoqO?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 3:27 PM <http://sco.lt/8EnNbc?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Jat, R.K., Singh, R.G., Gupta, R.K., Gill, G., Chauhan, B.S. & Pooniya, V. 2019. Crop Protection. 123: 12-20. <http://sco.lt/8EnNbc?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.cropro.2019.05.007 <http://sco.lt/8TM9AW?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: Direct seeded rice is a possible replacement for the water, labor and energy intensive transplanted rice if weeds can be controlled. This study looked at integrated weed control that included rice under puddled and unpuddled conditions, NT with direct seeded rice with or without residue retention and cover crops, NT transplanted rice and combinations of herbicides with and without cover crops. In the first year NTDSR with or without residue had more weeds compared to puddled transplanted treatments. In the 2nd year weeds were the same and in the 3rd year weeds were less in the NTDSR treatments. Plots under NTDSR yielded the same or more then the PTPR treatments. Herbicides were effective in controlling specific weeds and the study recommended two herbicides in combination for control of weeds in DSR. <http://sco.lt/8EnNbc?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8lWTUe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/93gnom?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/9Lr88u?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/4yUbnE?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Conservation agriculture as a climate change mitigation strategy in Zimbabwe. <http://sco.lt/7yu7N2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From www.tandfonline.com <http://sco.lt/82ldy4?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 12:09 PM <http://sco.lt/7yu7N2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&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/7yu7N2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1080/14735903.2020.1750254 <http://sco.lt/8KvyIC?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: This study was designed to look at the carbon sequestration potential of CA. They measures C02 flux from several alternative CA practices in Zimbabwe. They showed that CA practices produce less C02 emissions compared to conventional systems. No-till with the use of cover crops produced fewer C)2 emissions than CT and fallow. <http://sco.lt/7yu7N2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5Gew7M?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5YpGRU?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5qzalc?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/699v5k?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Long-term impact of no-till conservation agriculture and N-fertilizer on soil aggregate stability, infiltration and distribution of C in different size fractions. <http://sco.lt/6GJSym?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/6RKFPs?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 11:21 AM <http://sco.lt/6GJSym?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Sithole, N.J., Magwaza, L.S. & Thibaud, G.R. 2019. Soil and Tillage Research. 190: 147-146. <http://sco.lt/6GJSym?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.still.2019.03.004 <http://sco.lt/6jUZk0?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: Soil degradation by soil organic carbon loss is a major concern in SSA. This study assesses the long-term (13 years) changes in SOC, aggregate associated C, particulate organic C (POC) and infiltration in sub-tropical, monocropping maize at 3 soil depths in South Africa. Tillage treatments were No-till (NT) and rotational tillage (RT) both with permanent residue cover and CT with residue removed. Nitrogen treatments were 0, 100 and 200 kg/ha. On average Total SOC did not differ between tillage treatments, but varied with depth where it was stratified in the 0-10 cm depth in NT and RT. POC varied and decreased significantly in the 0-10 cm depth with increased tillage intensity. They conclude that reduced soil disturbance improves physical protection of SOC, soil structure and infiltration but TSOC takes time to improve. <http://sco.lt/6GJSym?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/71eu48?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7JpEOG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7bzYiO?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7u9t2W?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Conservation agriculture for sustainable intensification in South Asia <http://sco.lt/6sZju4?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From www.nature.com <http://sco.lt/8CKDMe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 4:58 PM <http://sco.lt/6sZju4?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Jat, M.L., Chakraborty, D., Ladha, J.K., Rana, D.S., Gathala, M.K., McDonald, A. & Gerard, B. 2020. Nature Sustainability. 3 (4): 336-343. <http://sco.lt/6sZju4?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1038/s41893-020-0500-2 <http://sco.lt/8UUXgm?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: Sustainable Development Goals require climate Smart and profitable farm innovations. This study looks at CA as a sustainable intensification strategy in the context of smallholder farming in South Asia. This meta-analysis used 9,686 paired site-year comparisons representing different indicators of cropping system performance. The results show significant benefits when CA component practices are implemented either separately or in tandem. They suggest that there are opportunities to maximize expected benefits and policymakers and development practitioners should be appraised of the potential for CA in South Asia. <http://sco.lt/6sZju4?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8mes0u?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/94pCL2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/9MzWfA?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/4hX4ls?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Impacts of conservation agriculture on soil structure and hydraulic properties of Malawian agricultural systems. <http://sco.lt/8DB0kq?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/4zhP60?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 4:05 PM <http://sco.lt/8DB0kq?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Eze, S., Dougill, A.J., Banwart, S.A., Hermans, T.D.G., Ligowe, I.S. & Thierfelder, C. 2020. Soil and Tillage Research. 201: 104639. <http://sco.lt/8DB0kq?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.still.2020.104639 <http://sco.lt/5HrjQ8?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: This study suggests CA can be widely promoted to overcome SSA climate change and food security issues but suggest little is known about the impact of CA on soil physical properties such as soil structure and hydraulic properties. The aim of this report was to assess the impact of 10-12 years of maize-based CA on soil physical properties with CA and conventional tillage treatments in Malawi. The results show that CA systems have significant changes to soil hydraulic properties that correlate with improved soil structure. There was no significant build-up of organic matter in CA systems but residues were not included. They conclude that CA should include residues to enhance soil OM levels. <http://sco.lt/8DB0kq?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5a23kG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5sCO4O?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/6AMiOW?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/6SX2ie?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Sub-surface drip fertigation with conservation agriculture in a rice-wheat system: A breakthrough for addressing water and nitrogen use efficiency. <http://sco.lt/58MAYy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/6khN2m?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 3:45 PM <http://sco.lt/58MAYy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Sidhu, H.S., Jat, M.L., Singh, Y., Sidhu, R.K., Gupta, N., Singh, P., Singh, P., Jat, H.S. & Gerard, B. 2019. Agricultural Water Management. 216: 273-283. <http://sco.lt/58MAYy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.agwat.2019.02.019 <http://sco.lt/72rhMu?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: This study looks at ways to overcome the scarcity of water and dropping water table in the rice-wheat areas of NW India. It also looked at ways to overcome the air pollution problem associated with rice residue burning after harvest and excessive tillage. This study looked at residue mulch, , different spacing and depths for sub-surface drip lines and fertigation (SSDF) on permanent bed planting on yield, water productivity nitrogen efficiency and net returns. There were water savings with the buried drip lines in both rice and wheat. Residue mulch resulted in higher water savings, wheat yield, water productivity compared to no residues. Net returns were higher for buried 15cm deep drip lines compared to flood irrigation. <http://sco.lt/58MAYy?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7L21h2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7dCM1A?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7vMgLI?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8DX0fQ?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Impact of conservation tillage in rice-based cropping systems on soil aggregation, carbon pools and nutrients. <http://sco.lt/5zMl6W?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/8VhKzY?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 3:12 PM <http://sco.lt/5zMl6W?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Nandan, R., Singh, V., Singh, S.S., Kumar, V., Hazra, K.K., Nath, C.P., Poonia, S., Malik, R.K., Bhattacharyya, R. & McDonald, A. 2019. Geoderma: 340: 104-114. <http://sco.lt/5zMl6W?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.geoderma.2019.01.001 <http://sco.lt/8nrfJg?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: This study looked at conventional (CT) and No-till (NT) in wheat/maize following puddled or non-puddled TP rice or direct seeded rice. Also residue removal or retention. They looked at soil aggregation, carbon pools, nutrient availability and yield. After 6 years in top 20 cm soil, NT treatments had had more total organic carbon than CT treatments. NT treatments also had more stable soil aggregates. Retention of residues increased TOC, and soil available nutrients, especially P, K and Zinc over residue removal. The conclude that NT with residue retention should be recommended for improving soil quality and production sustainability. <http://sco.lt/5zMl6W?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/961zdo?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/4ifTI8?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/50pncG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/5J07wO?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Drip irrigation and nitrogen management for improving crop yields, nitrogen use efficiency and water productivity of maize-wheat system on permanent beds in North-west India. <http://sco.lt/60D0Oe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From linkinghub.elsevier.com <http://sco.lt/5bASGW?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 11:36 AM <http://sco.lt/60D0Oe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Sandhu, O.S., Gupta, R.K., Thind, H.S., Jat, M.L., Sidhu, H.S. & Yadvinder-Singh. 2019. Agricultural Water Management. 219: 19-26. <http://sco.lt/60D0Oe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.agwat.2019.03.040 <http://sco.lt/5tKmae?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: NW India is suffering from over exploitation of ground water because of the traditional flood irrigation for rice and also low nitrogen-use efficiency. Maize-based systems are being promoted that use less water. Bed planting, straw mulching and drip irrigation also use less water. This 2-year study looked at permanent bed planting, surface drip irrigation, residue management and N-rate on crop and water productivity.Both wheat and maize under drip irrigation with residue retention showed 23 and 14% higher yields compared to furrow irrigation with no residue retention. This drip system with residues also saves water and increases water productivity in both maize and wheat crops compared to furrow irrigation. Fertigation in the drip lines with split applications increased N-use efficiency. <http://sco.lt/60D0Oe?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/6BV6um?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/6TfREu?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/6lplZ2?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7405tA?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Long-term effects of tillage and straw management on soil organic carbon, crop yield, and yield stability in a wheat-maize system. <http://sco.lt/8SUngG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> From doi.org <http://sco.lt/7MAQDI?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> - Today, 11:01 AM <http://sco.lt/8SUngG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> Xu, J., Han, H., Ning, T., Li, Z. & Lal, R. 2019. Field Crops Research. 233: 33-40. <http://sco.lt/8SUngG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> https://doi.org/10.1016/j.fcr.2018.12.016 <http://sco.lt/7MAQDI?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> *Cornell Conservation Agriculture Group (soilhealth.org)* <http://sco.lt/9EQpIv?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1>'s insight: This study in the Northern China Plain looked at 11 years of of six agricultural practices on soil organic carbon storage, crop yield and yield stability in a maize-wheat system. The three tillage systems were conventional (CT), No-till (NT) and sub-soiling (ST) with straw returned or removed. The highest SOC was in NT and ST with residue. Highest yields were with ST with and without straw return. NT, ST and straw return both increased crop yield stability. Maize and wheat yields were positively correlated with SOC storage. <http://sco.lt/8SUngG?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7eKkXQ?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/7wV4rY?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8EfPBg?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> <http://sco.lt/8WpjVo?_tmc=XOhDDDaX9mXbHjV9AUHInw0X8E6-iRJPwqgVB8UtDqQ&track=1> ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);