Resource Magazine July/August 2012 : Page 3

July/Agust 2012 Vol. 19 No. 4 Magazine Staff: Donna Hull, Publisher,; Sue Mitrovich, Managing Editor,; Glenn Laing, Contributing Editor,; Melissa Miller, Professional Opportunities and Production Editor,; Sandy Rutter, Professional Listings, Editorial Board: Chair Rafael Garcia, USDA-ARS; Secretary/Vice Chair Brian Steward, Iowa State University; Past Chair Suranjan Panigrahi, Purdue University; Thomas Brumm, Iowa State University; Victor Duraj, University of California, Davis; Tony Grift, University of Illinois; Christopher Henry, University of Nebraska; William Reck, USDA-NRCS; John Yagow, John Deere Harvester Works; Jeong Yeol Yoon, University of Arizona. Resource: Engineering & Technology for a Sustainable World (ISSN 1076-3333) (USPS 009-560) is published six times per year— January/February, March/April, May/June, July/August, September/October, November/December—by the American Society of Agricultural and Biological Engineers (ASABE), 2950 Niles Road, St. Joseph, MI 49085-9659, USA. POSTMASTER: Send address changes to Resource, 2950 Niles Road, St. Joseph, MI 49085-9659, USA. Periodical postage is paid at St. Joseph, MI, USA, and additional post offices. SUBSCRIPTIONS: Contact ASABE order department, 269-932-7004. COPYRIGHT 2012 by American Society of Agricultural and Biological Engineers. Permission to reprint articles available on request. Reprints can be ordered in large quantities for a fee. Contact Donna Hull, 269-932-7026. Statements in this publica-tion represent individual opinions. Resource: Engineering & Technology for a Sustainable World and ASABE assume no responsibility for statements and opinions expressed by contributors. Views advanced in the editorials are those of the contributors and do not necessarily represent the official position of ASABE. engineering and technology for a sustainable world July/August 2012 FEATURES 4 Sustaining Irrigated Agriculture with Declining Water Supplies Tom Trout “If we are to meet future food needs, we must sustain irrigated agriculture and squeeze as much productivity as possible from every drop of water.” 8 Detecting Fecal Bacteria in Surface Waters 4 Michael Jenkins, Dinku Endale, and Dwight Fisher New methods of quantifying Salmonella and E. coli 0157:H7 have produced results that enable very small concentrations to be measured, even when the fecal indicator E. coli is below concentrations that would indicate a risk to public health. 10 Ammonia Mitigation Technology for Sustainable Environmental Stewardship Saqib Mukhtar and Amir M. Samani Mejd “Research has shown that an acid-filled, gas-permeable membrane system can remove NH 3 gas from liquid manure. The captured NH 3 may be used as ammonium sulfate fertilizer to partially offset the cost of using commercial nitrogen fertilizer on the farm.” 8 14 Biological Engineering? Please Explain Norman R. Scott, Abdel Ghaly, and Arthur Johnson Three sage professors think out loud about about BE. 16 Another Report from 25 Years Hence John K. Schueller A contributor to last year’s “Farm of the Future” issue takes another look at horticulture in the year 2035: “The goal is to deliver the right amount of the right quality at the right time to the market. Some things never change.” 18 The Future of Farming? 10 Charles Merfield Back by popular demand, another author from the “Farm of the Future” issue examines agricultural development from a broader perspective: “So what is the scientifically informed view of the future of farming?” 21 ASABE, ICC to Collaborate on Sprinkler Standard UPDATE 22 21 Soil erosion modeling: It’s getting better all the time Bristol scientists produce world’s first magnetic soap Floating robots use GPS-enabled smartphones to track water flow Precision rain for precision irrigation Nanotechnology may damage plant DNA 23 24 26 27 28 ON THE COVER ARS plant physiologist Dale Shaner and ag engineer, author, and A S A B E m e m b e r T o m T r o u t measure photosynthesis on deficit irrigated corn plants at the ARS Limited Irrigation Research Farm near Greeley, Colo. Photo by Peggy Greb, courtesy of USDA-ARS. American Society of Agricultural and Biological Engineers 2950 Niles Road St. Joseph, MI 49085-9659, USA 269.429.0300, fax 269.429.3852, Polymer from brown algae may replace harmful solvents in batteries MSU to begin work on energy-producing anaerobic digester 27 DEPARTMENTS 2 From the President/Events Calendar 29 Professional Opportunities 30 Professional Listings 31 Last Word Embracing Variability: How to Hug a Cactus Tony Grift

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