In many areas of California, salinity can have a detrimental impact on irrigated crops which can be exacerbated under drought conditions. While all soils and irrigation water contain dissolved salts, these salts vary in both concentration and composition depending on their location. Vegetable and row crops have varying degrees of tolerance to soil salinity, and soil salinity is influenced by the salinity of the irrigation water and management practices. This publication provides salt tolerance guidelines for a variety of crops, based on the long-term use of the given water quality and do not account for rainfall or other sources of water that could be used to leach salts from the root zone. Boron tolerance is also discussed.
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