Who We Are
The LTAR Network is a growing group of researchers focused on finding solutions that maintain or increase agricultural productivity, environmental quality, and people well-being in spite of pressures such as climate change. Read more
Our Research Approach
The LTAR network combines strategic research projects with common measurements on multiple agroecosystems (croplands, rangelands, and pasturelands) and develops new technologies to address local and national challenges and opportunities.
Read more
Data Access
LTAR scientists are responsible for managing a rich legacy of data spanning over seventy years for many sites. Collectively, it is estimated LTAR manages [200+ terabytes] of data.
Read more
The 18 LTAR Network Sites
The 18 LTAR Network Sites collaborate in coordinated strategic research that leverages a rich legacy of research and data collection. Read more
(Click dots to open LTAR site page)
Follow @USLTAR
Mark your calendar for Nov. 4 at 1 PM ET! Join ARS Rangeland Scientist Dr. Justin Derner as he presents “Grazing land management and soil carbon: Results and Insights from the Western Great Plains.” Details and free registration https://t.co/4mBWd6M74J pic.twitter.com/fWCn5zKpFi
— Agricultural Research Service (@USDA_ARS) October 29, 2024
Balancing water use in agriculture is key! That's why researchers in Texas & Colorado developed an improved irrigation management tool: the open-source model pyfao56! This customizable model supports efficient water management for precise crop irrigation. https://t.co/KeAXp4M7rl pic.twitter.com/AwcxkI37zb
— Agricultural Research Service (@USDA_ARS) October 26, 2024
🎉ARS's Sheri Spiegal and partners launch collaboration to advance manure management research! "We are delighted to collaborate with industry & science leaders to explore viable pathways for nutrient conservation & recycling across the dairy supply chain.” https://t.co/Ms76r0WiZz pic.twitter.com/lyzVkGunZz
— Agricultural Research Service (@USDA_ARS) October 24, 2024
See In Scientific Discoveries, how ARS researchers partnered with the Southwest Climate Hub in Las Cruces, NM, to develop the Water Adaptation Techniques Atlas (WATA), in an effort to adapt to water scarcity across particular locations and landscapes. https://t.co/9O316naOCA pic.twitter.com/V77FZA1Tno
— Agricultural Research Service (@USDA_ARS) October 18, 2024
Congrats! ARS & partners help steward & improve the Rangeland Analysis Platform https://t.co/WklhCBWlsx. The data in the online tool is a key resource for experts in the sagebrush biome & contributed to 20 papers featured in Rangeland Ecology & Management https://t.co/BYZgDHexiE pic.twitter.com/NtGUeFPKm2
— Agricultural Research Service (@USDA_ARS) October 17, 2024
As PFAS, (forever chemicals), are increasingly found in the environment, posing challenges for producers and farming communities -- ARS announces its collaborative research roadmap with @UMaine to meet emerging challenges posed by PFAS in agriculture. https://t.co/luSroqiJkQ pic.twitter.com/V5I2SRci2N
— Agricultural Research Service (@USDA_ARS) October 16, 2024
Today we celebrate Indigenous Peoples' Day by recognizing the sovereignty, resilience, and immeasurable contributions of Indigenous Peoples. Learn about USDA Forest Service Tribal Relations accomplishments at: https://t.co/25iSmpojt1. #IndigenousPeoplesDay pic.twitter.com/VMPSPIzYo2
— Agricultural Research Service (@USDA_ARS) October 14, 2024
How does Agriculture Affect our Planet? Follow ARS to see how researchers continue exploring ways to maintain and improve soil health through management practices, including promoting plant diversity, keeping soil covered, reducing tillage, and more. https://t.co/xsT16rPCVD pic.twitter.com/CMKkNDNbmq
— Agricultural Research Service (@USDA_ARS) October 11, 2024
Kudos to ARS’ “Soils Lab” in Morris, MN for helping make it happen! Their 20 yrs of multi-faceted research turned a lesser known, underutilized plant into a versatile oilseed crop for midwestern farmers—now, a potential resource for sustainable jet fuels. https://t.co/WI5spBWjdx pic.twitter.com/cm8nWCTaFr
— Agricultural Research Service (@USDA_ARS) October 8, 2024
"Balancing Act" features ARS scientists studying flooded Mississippi Delta fields as wetlands for migratory birds. Catch it on Farmweek: Thursdays at 4:30 p.m. CT on RFD-TV, Saturdays at 6:00 p.m. CT on MPB. Watch here: https://t.co/HufF7bDHjD
— US LTAR (@USLTAR) October 30, 2024
See how Agricultural Research Service scientists are developing new management techniques to mitigate the effects of greenhouse gasses, and climate changes occurring in agriculture. https://t.co/cWSq4MIZpa pic.twitter.com/IaPI1siIK0
— Agricultural Research Service (@USDA_ARS) October 7, 2024
A new study suggests that targeted livestock grazing can be an effective and affordable way to manage cheatgrass in the western Great Plains of the U.S. when timed to coincide with cheatgrass growth rather than solely based on the time of year. https://t.co/8kQl7BpBIc pic.twitter.com/eMukj6CFAa
— Agricultural Research Service (@USDA_ARS) October 1, 2024
Adaptive grazing management can help ranchers and rangeland managers adapt to climate change. By anticipating and responding to changing conditions, we can ensure healthy, productive rangelands and support thriving livestock-based economies.https://t.co/lh12rcOuNz@USDA_ARS pic.twitter.com/aNY2g0lTmB
— USDA Climate Hubs (@USDAClimateHubs) September 25, 2024
ABOUT LTAR
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.