Results 111 to 120 of about 2,697,606 (306)

Denitrifying bioreactors and dissolved phosphorus: Net source or sink?

Journal of Environmental Quality, EarlyView.
Abstract Understanding the world through a lens of phosphorus (P), as Dr. Andrew Sharpley aimed to do, adds a deeper dimension for water quality work in the heavily tile‐drained US Midwest where nitrate is often the nutrient of biggest concern. Denitrifying woodchip bioreactors reduce nitrate pollution in drainage water, but dissolved phosphorus ...
A. P. Sanchez‐Bustamante Bailon, A. Margenot, R. A. C. Cooke, L. E. Christianson   +3 more
wiley   +1 more source

Phosphorus lability across diverse agricultural contexts with legacy sources

Journal of Environmental Quality, EarlyView.
Abstract The buffering of phosphorus (P) in the landscape delays management outcomes for water quality. If stored in labile form (readily exchangeable and bioavailable), P may readily pollute waters. We studied labile P and its intensity for >600 soils and sediments across seven study locations in the United States. Stocks of labile P were large enough
Zachary P. Simpson, Joshua Mott, Kyle Elkin, Anthony Buda, Joshua Faulkner, Cathleen Hapeman, Greg McCarty, Maryam Foroughi, W. Dean Hively, Kevin King, Will Osterholz, Chad Penn, Mark Williams, Lindsey Witthaus, Martin Locke, Ethan Pawlowski, Brent Dalzell, Gary Feyereisen, Christine Dolph, David Bjorneberg, Kossi Nouwakpo, Christopher W. Rogers, Isis Scott, Carl H. Bolster, Lisa Duriancik, Peter J. A. Kleinman   +25 more
wiley   +1 more source

Evaluation of Minnesota Phosphorus Loss Index performance

Journal of Environmental Quality, EarlyView.
Abstract Supported by the National Phosphorus (P) Research Project led by Dr. Andrew Sharpley, Minnesota developed its statewide P‐Index, the Minnesota P Loss Index (MNPI), to manage critical source areas of agricultural P. The MNPI has remained unchanged since its last revision in 2006.
Heidi Reitmeier, Lindsay Pease, Peyton Loss, Tim Radatz   +3 more
wiley   +1 more source

Image based Crop Monitoring Technologies in Protected Horticulture: A Review [PDF]

arXiv
Future food security is a major concern of the 21st century with the growing global population and climate changes. In addressing these challenges, protected cropping ensures food production year-round and increases crop production per land area by controlling environment conditions.
arxiv  

Toward a transdisciplinary and unifying definition of legacy phosphorus

Journal of Environmental Quality, EarlyView.
Abstract Legacy phosphorus (P) is a concept advanced by Dr. Andrew Sharpley and colleagues that was originally applied to the persistence of anthropogenic signatures in watersheds, and it has since been adopted in a diversity of settings to help guide the science and management of P.
Amy L. Shober, Zachary P. Simpson, Helen P. Jarvie, Merrin L. Macrae, Peter J. A. Kleinman, Philip M. Haygarth, Stephanie Kulesza, Luke Gatiboni, Jenny Davies   +8 more
wiley   +1 more source

Assessing the impacts of stakeholder involvement in long‐term agricultural experiments via a case study in the upper US Midwest

Journal of Environmental Quality, EarlyView.
Abstract Agricultural researchers are increasingly encouraged to engage with stakeholders to improve the usefulness of their projects, but iterative research on the design and assessment of stakeholder engagement is scarce. The USDA Long‐Term Agroecosystem Research (LTAR) Network recognizes the importance of effective engagement in increasing the ...
Tian Guo, Sandra Marquart‐Pyatt, Tayler Ulbrich, Julie E. Doll, Brook Wilke, G. Philip Robertson   +5 more
wiley   +1 more source

Pesticide runoff from conventional tillage, minimum tillage, and no‐tillage cropping systems: Meta‐analysis of published North American data

Journal of Environmental Quality, EarlyView.
Abstract Pesticide applications may soon be regulated by laws predicated on the presupposition that reducing tillage, and thereby increasing soil surface crop residue cover, decreases sorbed and soluble agrochemical losses in surface runoff and erosion.
Daniel E. Fleming, G. Dave Spencer, L. Jason Krutz   +2 more
wiley   +1 more source

Connecting the soil health–water quality nexus under surface‐irrigated conservation tillage

Journal of Environmental Quality, EarlyView.
Abstract Intense tillage degrades soil health, worsens soil structure, and accelerates nutrient and sediment transport to vulnerable water bodies. Unfortunately, few studies have measured both soil health and water quality under conservation tillage, particularly in semi‐arid furrow‐irrigated fields, limiting our understanding of tillage impacts in ...
Tad Trimarco, R. Daren Harmel, Erik Wardle, Cassidy Buchanan, Ansley Brown, Emmanuel Deleon, Troy Bauder, James A. Ippolito   +7 more
wiley   +1 more source

Effect of P rates in long‐term conservation agriculture trials on the vertical distribution of soil acidity and nutrient availability

Journal of Environmental Quality, EarlyView.
Abstract Few studies are published on the long‐term impact of phosphorus (P) rates as triple superphosphate (208 g P kg−1) on the vertical distribution of soil acidity and the availability of macro and micronutrients within conservation systems. This study explores the long‐term impacts of increasing P rates on the vertical distribution of soil acidity
Tales Tiecher, Luke Gatiboni, Dionata Filippi, Deanna Osmond, David Hardy   +4 more
wiley   +1 more source

Environmental sustainability in US dairy farms: Policies, practices, and outcomes

Journal of Environmental Quality, EarlyView.
Abstract Improving sustainability on US dairy farms has become a critical focus across the industry. As dairy farms continue to consolidate, there is a growing need to identify scalable, implementable soil health management practices that enhance environmental sustainability in the fields managed by the dairy.
Mara L. Cloutier, Daniel Liptzin, Adolfo Coyotl, Abigail E. Baxter, Cristine L. S. Morgan   +4 more
wiley   +1 more source