Horning Forestry Farm
Plattsmouth, NE
http://snr.unl.edu/fieldsites/horning.asp

Horticultural Crops Research Station - Castle Hayne
Castle Hayne, NC
(910) 675-2314
http://www.ncagr.com/Research/hcrs.htm

Horticultural Crops Research Station - Clinton
Clinton, NC
(910) 592-7839
http://www.ncagr.com/Research/hcrscl.htm

Horticulture and Agroforestry Research Center
New Franklin, MO
(660) 848-2268
http://aes.missouri.edu/harc/

Horticulture Field Laboratory
Raleigh, NC
(919) 515-3144

Hundley-Whaley Center
Albany, MO
(660) 726-5610
http://aes.missouri.edu/hundwhal

Iberia Research Station
Jeanerette, LA
(318) 276-5527
http://www.lsuagcenter.com/en/our_offices/research_stations/Iberia/

Idlewild Research Station
Clinton, LA
(225) 683-5848
http://www.lsuagcenter.com/en/our_offices/research_stations/Idlewild/

Indian River Research and Education Center
Ft. Pierce, FL
(772) 468-3922
http://www.irrec.ifas.ufl.edu/

Intermountain Research and Extension Center
Tulelake, CA
(530) 667-5117
http://danrrec.ucdavis.edu/intermountain/home_page.html

Iowa State Research & Demonstration Farms
Ames, IA
(515) 294-4621

Irrigation and North Central Kansas Experiment Fields
Courtland, KS
(785) 335-2836

Jackson Agricultural Research Station
Jackson, OH
(614) 286-3803
http://www.oardc.ohio-state.edu/branches/jackson.htm

John C. Pair Horticultural Center
Haysville, KS
(316) 788-0492
http://www.oznet.ksu.edu/rc_hefw/

Kansas River Valley Irrigation Experiment Field
Topeka, KS
(785) 354-7236
http://www.oznet.ksu.edu/rc_rvef/

Kansas State University
Manhattan, KS
(785) 532-6148

Kearney Research and Extension Center
Parlier, CA
(559) 646-6000
http://danrrec.ucdavis.edu/kearney/home_page.html

Kiamichi Forestry Research Station – Idabel
Idabell, OK
(580) 286-5175
http://www.oaes.okstate.edu/field-and-research-service-unit/copy_of_lindley-research-and-demonstration-farm/

Lake City Experiment Station
Lake City, MI
(231) 839-4608
http://www.maes.msu.edu/lakecity/

Lake Wheeler Road Field Laboratory
Raleigh, NC
(919) 515-2759
http://www.cals.ncsu.edu/research/field_labs/lwrfl.htm

Langdon Research Extension Center
Langdon, ND
(701) 256-2582
http://www.ag.ndsu.nodak.edu/langdon/

Lauren Christian Swine Research and Demonstration Farm
Atlantic, IA
(712) 243-2729

Lindcove Research and Extension Center
Exeter, CA
(559) 592-2408
http://danrrec.ucdavis.edu/lindcove/home_page.html

Livestock and Forestry Branch Station
Batesville, AR
(870) 793-7432
http://www.uark.edu/admin/aes/live.html

Lower Coastal Plain Tobacco Research Station
Kinston, NC
(252) 527-3579
http://www.ncagr.com/Research/lcptrs.htm

Lubbock Agriculture Research and Extension Center
Lubbock, TX
(806) 746-6101
http://lubbock.tamu.edu/

Macon Ridge Research Station
Winnsboro, LA
(318) 435-2157
http://www.lsuagcenter.com/en/our_offices/research_stations/Maconridge/

Main Experiment Station
Fargo, ND
(701) 231-6693
http://www.ag.ndsu.nodak.edu/fargo/

Maricopa Agricultural Center
Maricopa, AZ
(520) 381-2273
http://cals.arizona.edu/aes/mac/

Marvin Klemme Range Research Station – Bessie
Bessie, OK
(580) 337-6613
http://www.oaes.okstate.edu/field-and-research-service-unit/marvin-klemme-range-research-station-1/