Trace elements limit potential for blending San Joaquin drainwater with canal water
AuthorsBlaine R. Hanson
Stephen R. Grattan
Donald W. Grimes
Kenneth K. Tanji
Authors AffiliationsBlaine R. Hanson is Irrigation and Drainage Specialist, UC Davis; Wilbur Bowers is Post-Graduate Researcher, UC Davis; Stephen R. Grattan is Plant-Water Relations Specialist, UC Davis; Donald W. Grimes is Water Scientist, UC Davis; Kenneth K. Tanji is Professor, Department of Land, Air and Water Resources, UC Davis.
Hilgardia 45(2):17-19. DOI:10.3733/ca.v045n02p17. March 1991.
Poor soil-water infiltration in the eastside of the San Joaquin Valley is frequently attributed to low-salinity irrigation water. This report assesses the feasibility of improving infiltration rates by blending the more saline westside drainwater with the less saline FriantKern Canal water, a strategy which would also provide a disposal method for westside drain water. However, the study found that boron and molybdenum concentrations in the drainwaters require large blending ratios to prevent crop yield reductions of tree crops grown along the eastside. These large blending ratios mean that the blended irrigation water may have little effect on improving filtration.
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