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General Soil Water Links:
NRCS
Irrigation - Handbooks and Manuals;
National Engineering Handbook Part 652 - Irrigation Guide (17 Chapt.)
http://www.wcc.nrcs.usda.gov/nrcsirrig/irrig-handbooks-part652.html
Publication
of the RI Water Resources Board
Water_Resources_for_Rhode_Island_2006.pdf
Lessons on
irrigation practice from the USDA
ftp://ftp.wcc.nrcs.usda.gov/downloads/irrigation/
Water runoff
maps from the USGS for Southeast MA and RI:
http://ma.water.usgs.gov/drought/Surface_Water_Maps_for_Water_Year_2007.html
Water use in the U.S.:
http://www.ers.usda.gov/Briefing/wateruse/
Hydrology; Level II: Introduction to Design Education and Certification for
Persons Involved in Land Disturbing Activities; Issued October 2005. PowerPoint
on antecedent soil moisture and runoff:
http://s150378756.onlinehome.us/level2/2-8b-hydrology.pdf
The outreach
portions of many state land-grant institutions suggest that the state farmers
should use soil moisture sensing devices to determine the best irrigation
schedule, for example South Dakota:
http://agbiopubs.sdstate.edu/articles/FS876.pdf
and Colorado
http://www.ext.colostate.edu/PUBS/crops/04708.html
The most common method to determine soil moisture for farm producers in the
East: Direct feel and appearance of the soil - suggested for use in RI at
http://www.uri.edu/ce/factsheets/sheets/waterturf.html
Peter H.
Gleick Article from Scientific American: “Making
Every Drop Count”.
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