Premium
Guidelines for Molybdenum in Irrigation Waters
Author(s) -
Albasel N.,
Pratt P. F.
Publication year - 1989
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1989.00472425001800030002x
Subject(s) - san joaquin , leaching (pedology) , salinity , molybdenum , irrigation , environmental science , drainage , dns root zone , soil water , water quality , soil salinity , environmental chemistry , hydrology (agriculture) , environmental engineering , chemistry , agronomy , geology , soil science , biology , ecology , oceanography , geotechnical engineering , inorganic chemistry
Molybdenum (Mo) in relatively high concentrations has been found in saline SO 2− 4 ‐dominated agricultural drainage waters of the West Side of the San Joaquin Valley (WSSJV) of California. Because of the potential for using these waters for irrigating salt‐tolerant crops, an assessment of quality guidelines for Mo for the specific conditions of the WSSJV was justified. The unique conditions of (i) alkaline soils favoring Mo mobility, (ii) the high leaching fractions required to control salinity in the root zone, and (iii) the effect of SO 2− 4 in reducing Mo absorption by plants suggested that the guideline of 10 µ g L −1 to protect crops and animals be increased to 50 µ g L −1 for the WSSJV. The Mo input at this concentration assuming the use of 10 000 m 3 of water ha −1 will be 0.5 kg h −1 .