(Alabama) http://www.aces.edu/dept/extcomm/publications/anr/anr
6/a/anr 6a.pdf
and
http://www.ag.auburn.edu/dept/ay/soiltest.htm
(Arizona) http://ag.arizona.edu/pubs/garden/az1111.pdf
(Arkansas) http://www.uark.edu/depts/soiltest/
(Colorado) http://www.colostate.edu/Depts/CoopExt/TRA/PLANTS/soiltest.html
(Connecticut) http://www.caes.state.ct.us/Soiloffice/soiltesting.htm
(Delaware) http://www.udel.edu/DSTP/
(Florida) http://edis.ifas.ufl.edu/MENU_SS:SOILTEST
(Georgia) http://www.ces.uga.edu/pubcd/L387 w.htm
(Illinois) http://www.urbanext.uiuc.edu/gardencal/extra/soiltest3.html
(Indiana) http://www.agry.purdue.edu/turf/pubs/ay18.htm
and
http://www.agry.purdue.edu/ext/soiltest.html
(Iowa) http://www.agron.iastate.edu/soiltesting/
(Kansas) http://www.oznet.ksu.edu/johnson/agriculture/soiltest.htm
(Kentucky) http://soils.rs.uky.edu/
(Louisiana) http://www.lsuagcenter.com/Subjects/protectwaters/pdfs/2794 d.pdf
(Maine) http://anlab.umesci.maine.edu/
(Massachusetts) http://www.umass.edu/agland/services/soil_testing.html
and
http://www.umass.edu/plsoils/soiltest/broch1a.htm
(Michigan) http://www.co.macomb.mi.us/msuextension/faq/soil.htm
(Minnesota) http://www.extension.umn.edu/info
u/plants/BG468.html
and
http://soiltest.coafes.umn.edu/
and
http://www.mda.state.mn.us/appd/soilabs.htm
(Mississippi) http://msucares.com/crops/soils/testing.html
(Missouri) http://www.soiltest.psu.missouri.edu/mstalabs.htm
(Montana) http://www.montana.edu/wwwpb/pubs/mt44491.pdf
(Nebraska) http://agronomy.unl.edu/spal/
(Nevada) http://www.portalnevada.com/SICSearch/873401.htm
(New Hampshire) http://www.ceinfo.unh.edu/Agriculture/Documents/SoilTest.htm
(New Mexico) http://www.cahe.nmsu.edu/pubs/_a/a
114.html
and
http://weather.nmsu.edu/instruments/soillab.html
(New Jersey) http://www.rce.rutgers.edu/soiltestinglab/homegarden instructions.pdf
(New York) http://www.cce.cornell.edu/suffolk/grownet/diagnostic forms/soiltest.html
(North Dakota) http://www.soilsci.ndsu.nodak.edu/services/Testing/soiltesting/soiltesting.html
(Ohio) http://ohioline.osu.edu/hyg
fact/1000/1132.html
and
http://ohioline.osu.edu/hyg
fact/4000/4028.html
(Oklahoma) http://www.soiltesting.okstate.edu/
(Oregon) http://cropandsoil.oregonstate.edu/Services/Plntanal/CAL/index.html
(Pennsylvania) http://wpsx.psu.edu/extension_minute/soil.html
(South Carolina) http://www.clemson.edu/fieldops/Cgs/soil_t.htm
(South Dakota) http://plantsci.sdstate.edu/woodardh/soiltest/
(Tennessee) http://bioengr.ag.utk.edu/soiltestlab/
(Texas) http://soiltesting.tamu.edu/
(Utah) http://uaes.agsci.usu.edu/psb/tal/soil.science/usual/soiltesting.html
(Vermont) http://www.uvm.edu/pss/ag_testing/?Page=soils.html
(Virginia) http://sudan.cses.vt.edu/html/STL.html
(Wisconsin) http://www1.uwex.edu/ces/pubs/pdf/A2166.PDF
(Wyoming) http://uwadmnweb.uwyo.edu/RenewableResources/soil/soil_lab.htm