This page provides information on water and soil management relevant to Central Coast vineyards.
Interpretation of laboratory water analysis data:
Irrigation water analysis guidelines
NRCS Web Soil Survey:
http://websoilsurvey.nrcs.usda.gov/app/
California Soil Resource Lab (try the 'Google Maps Interface' listed in the 'Experimental Interfaces'):
http://casoilresource.lawr.ucdavis.edu/drupal/node/27
Irrigation management:
Automated soil moisture monitoring equipment