Finding Credible Sources on Drip Irrigation Efficiency for a Science Project

For a 6th-grade project on drip irrigation's water and energy savings in California's San Joaquin Valley, start with these authoritative sources:

1. Rain Bird / Irrigation Manufacturer Resources
   Visit rainbird.com (or your local Rain Bird dealer) for white papers, case studies, and crop-specific data. Manufacturers publish extensive research on drip vs. flood/furrow efficiency.
2. University of California Agriculture & Natural Resources (UC ANR)
   ucanr.edu → Search "drip irrigation," "microirrigation," "San Joaquin Valley." UC Davis and Kearney Agricultural Center publish peer-reviewed trials on water use, yield, and energy for almonds, grapes, tomatoes, etc.
3. California Department of Water Resources (DWR)
   water.ca.gov → Reports on agricultural water use efficiency, irrigation technology adoption, and state-funded incentive programs (SWEEP).
4. USDA NRCS
   nrcs.usda.gov → Conservation Practice Standard 441 (Microirrigation) and EQIP program data on water savings.

Have your daughter cite 2–3 of these. They're credible, data-rich, and region-specific. Avoid generic websites.