Managing manure for sustainable livestock production in the Chesapeake Bay Watershed

Kleinman, Peter J. A.; Blunk, Kristen Saacke; Bryant, Ray B.; Saporito, Lou S.; Beegle, D. B.; Czymmek, Karl; Ketterings, Quirine M.; Sims, Tom; Shortle, J; McGrath, Joshua M.; Coale, F. J.; Dubin, M.; Dostie, Daniel; Maguire, Rory O.; Meinen, Robb; Allen, Arthur L.; O'Neill, Kelly; Garber, L. L.; Davis, Mark A.; Clark, Bobby; Sellner, Kevin G.; Smith, Matt C.

doi:10.2489/jswc.67.2.54a

Cited by 55 publications

(61 citation statements)

References 5 publications

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“…Other times, recommendations from DS may be too general to be of use, such as when they do not reflect specific site conditions (Ockenden et al, 2017). Finally, farmers may have personal or religious aversions to DS if they are tied to government support (e.g., Kleinman et al, 2012). …”

Section: A Design Agenda For Decision Support Development and Lessonsmentioning

confidence: 99%

“…Decision support tool developers should consider integrating cost estimates for recycled P use in addition to other off‐farm P sources. Decision support tool developers could achieve this in part by developing P trading schemes for municipal or industrial recycled P akin to those that have been developed for manure management (Kleinman et al, 2012). …”

Section: Our Directions For the Future Development Of Decision Supportmentioning

confidence: 99%

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A Global Perspective on Phosphorus Management Decision Support in Agriculture: Lessons Learned and Future Directions

et al. 2019

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The evolution of phosphorus (P) management decision support tools (DSTs) and systems (DSS), in support of food and environmental security has been most strongly affected in developed regions by national strategies (i) to optimize levels of plant available P in agricultural soils, and (ii) to mitigate P runoff to water bodies. In the United States, Western Europe, and New Zealand, combinations of regulatory and voluntary strategies, sometimes backed by economic incentives, have often been driven by reactive legislation to protect water bodies. Farmer‐specific DSSs, either based on modeling of P transfer source and transport mechanisms, or when coupled with farm‐specific information or local knowledge, have typically guided best practices, education, and implementation, yet applying DSSs in data poor catchments and/or where user adoption is poor hampers the effectiveness of these systems. Recent developments focused on integrated digital mapping of hydrologically sensitive areas and critical source areas, sometimes using real‐time data and weather forecasting, have rapidly advanced runoff modeling and education. Advances in technology related to monitoring, imaging, sensors, remote sensing, and analytical instrumentation will facilitate the development of DSSs that can predict heterogeneity over wider geographical areas. However, significant challenges remain in developing DSSs that incorporate “big data” in a format that is acceptable to users, and that adequately accounts for catchment variability, farming systems, and farmer behavior. Future efforts will undoubtedly focus on improving efficiency and conserving phosphate rock reserves in the face of future scarcity or prohibitive cost. Most importantly, the principles reviewed here are critical for sustainable agriculture. Core Ideas Strategies protecting water bodies are often driven by reactive legislation. Phosphorus management focuses on plant available P and mitigating P runoff. Decision support is based on P transfer, best practices, education, and action. Recent scientific developments have rapidly advanced runoff modeling and education. DS challenges are “big data,” farming systems, and farmer behavior.

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Section: A Design Agenda For Decision Support Development and Lessonsmentioning

confidence: 99%

Section: Our Directions For the Future Development Of Decision Supportmentioning

confidence: 99%

A Global Perspective on Phosphorus Management Decision Support in Agriculture: Lessons Learned and Future Directions

et al. 2019

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“…The energy costs for transporting and recycling P from most types of raw manure back to areas of grain production are prohibitively high (Kleinman et al, 2012), and this continues to be the major practical constraint to closing the P cycle at regional, national, and global scales (Sharpley and Jarvie, 2012). For instance, Metson et al (2016) estimated recyclable manure P would need to travel nearly 200 miles to meet the largest demand in and around the US Corn Belt (where 50% of US corn P demand is located).…”

Section: Addressing the P Paradox Within The Realities And Nuances Ofmentioning

confidence: 99%

Distant Views and Local Realities: The Limits of Global Assessments to Restore the Fragmented Phosphorus Cycle

Sharpley

Kleinman

Jarvie

et al. 2016

Agricultural & Env Letters

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Core Ideas Meta‐analysis of “big data” can identify P disconnects in P cycles, stocks and flows. Understanding of farming realities is needed to identify root causes of change. Access to “big data” without grounding in reality can lead to misleading conclusions. Researchers must ensure production and conservation tactics consider farming realities. With more sophisticated data compilation and analytical capabilities, the evolution of “big data” analysis has occurred rapidly. We examine the meta‐analysis of “big data” representing phosphorus (P) flows and stocks in global agriculture and address the need to consider local nuances of farm operations to avoid erroneous or misleading recommendations. Of concern is the disconnect between macro‐needs for better P resource management at regional and national scales versus local realities of P management at farm scales. Both agricultural and environmental researchers should focus on providing solutions to disconnects identified by meta‐analyses and ensure that production and conservation strategies consider farming realities.

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“…For example, containing manures and slurries from stock that are housed in farm yards enables reuse and redistribution of the captured nutrients to fields. Investing in the infrastructure and spreading equipment and developing the skills required to utilise manure nutrients is an ongoing challenge (Kleinman et al, 2012). To maximise the value of nutrient use, and minimise losses to the environment, manure and fertiliser should be applied at appropriate rates, timings and locations to match crop requirement, maximise crop uptake and minimise leaching of nitrate and volatilisation of ammonium compounds (Di and Cameron, 2002;Lalor et al, 2011).…”

Section: Mitigating Sourcesmentioning

confidence: 99%

Land Use: Catchment Management

Melland

Jordan

Murphy

et al. 2014

Encyclopedia of Agriculture and Food Systems

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Poor water quality in lakes, rivers, estuaries and groundwater can be attributed to indirect effects of agricultural land use. Land management practices that lead to excess nutrients, sediment, pathogens and agrochemicals reaching waterbodies, or that negatively affect the hydrology, habitat and structure of waterbodies, can degrade water quality. This chapter describes farm and landscape management practices that can potentially prevent or mitigate adverse water quality impacts. Some examples of improved catchment water quality in response to changes in agricultural management are reported. Challenges associated with collecting evidence of the effects of agricultural management on water quality at the catchment scale, the potential for pollution-swapping, the cost-effectiveness of mitigation practices and approaches to governance of water quality management are also discussed. 2

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Managing manure for sustainable livestock production in the Chesapeake Bay Watershed

Cited by 55 publications

References 5 publications

A Global Perspective on Phosphorus Management Decision Support in Agriculture: Lessons Learned and Future Directions

A Global Perspective on Phosphorus Management Decision Support in Agriculture: Lessons Learned and Future Directions

Distant Views and Local Realities: The Limits of Global Assessments to Restore the Fragmented Phosphorus Cycle

Land Use: Catchment Management

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