The LTAR Network

We are a growing research network focused on developing national strategies for improved agricultural production. Our goal is to improve environmental quality and the well-being of farming communities while achieving increased agricultural production.

The LTAR Network is a partnership among 18 premier long-term research sites across the United States.

The Network has a multifaceted focus on satisfying increasing demand for agricultural commodities, protecting the quality of the environment, and enhancing the quality of life in rural areas and the Nation as a whole


2022 LTAR Annual Meeting at CAF

The 2022 Annual LTAR Meeting will be hosted by the R. J. Cook Agronomy Farm (the CAF LTAR site). Register ...
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2021 LTAR Annual Meeting at LMRB

The 2021 Annual LTAR Meeting will take place virtually and will be hosted by the USDA ARS National Sedimentation Laboratory ...
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NSF NEON Workshop Announcement

Complex Landscapes at Scale: Integrating our Understanding of Managed and Unmanaged Lands at Regional to Continental Scales Growing societal pressure ...
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2020 LTAR Annual Meeting at KBS

The 2020 Annual LTAR Meeting will take place virtually and will be hosted by the Kellogg Biological Station Location: Virtually at ...
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LTAR Tweets ( @USLTAR )

Job Announcement: Research Microbiologist - Research Associate in Mandan, ND

Job Announcement: Research Animal Scientist at Food Systems Research Unit, in Burlington, VT

Job Announcement: Research Soil Scientist at LCB site

KBS LTAR researchers show in new Global Change Biology paper how land-based climate mitigation that integrates both management and bioenergy solutions can together capture 50% more carbon than either alone @kbsltar

Thanks to a multi-million dollar partnership between @USDA_NRCS and @USDA_ARS, a team of researchers led by Steven Mirsky will build national web-based cover crop decision tools that inform species selection, seeding rates, economics, and water and nitrogen management.

As part of an @USDA_ARS, @USDA_NRCS interagency partnership, ARS Research Ecologist Steven Mirsky shares the importance of deep soil sampling rigs to ARS’s national LTAR network for tracking how long-term crop and soil management influences soil carbon storage.

Happy 110th Birthday @theJornada! @USLTER @USLTAR

A recent study highlights a novel social network approach and perspectives on resolving excess manure challenge across local, regional, and national scales @GwendwrMeredith @UNLSNR @USLTAR @USDA_ARS

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Vials everywhere! Working with student Summer Bjorn on inventorying a decade of plant tissue and #grain samples! ⁦@USDA_ARS⁩ ⁦@USLTAR⁩ ⁦@cafnr⁩

2021 ARS Discoveries Announcement: Research addressing important agroecosystem problems at 7 LTAR sites was recognized #USLTAR

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The USDA Agricultural Research Service (ARS) Long-Term Agroecosystem Research network consists of 18 Federal and university agricultural research sites with an average of over 50 years of history. The goal of this research network is to ensure sustained crop and livestock production and ecosystem services from agroecosystems, and to forecast and verify the effects of environmental trends, public policies, and emerging technologies.