Soluble salts in drainage waters and soils of recent citrus plantings in southern California
AuthorR. B. Harding
Author AffiliationsRobert B. Harding is Associate Chemist, Department of Soils and Plant Nutrition, University of California, Riverside.
Hilgardia 22(7):12-13. DOI:10.3733/ca.v022n07p12. July 1968.
Approximately 350 acres of alluvial valley soils in southern California are being lost to urbanization each day according to estimates by the University of California Agricultural Extension Service. Whether or not this loss of the better agricultural lands continues at the same rate, it is a fact that less desirable upland soils are already being developed for citrus as well as for other crops. Much of the area being planted in Riverside and San Diego counties includes rolling soils underlain at various depths by bedrock. The type of topography characteristic of these upland areas is shown in the photos.
Also in this issue:Supplemental feeding of honey bees
Sugar beet yield variation with soil type in Solano County
Control of sunflower moth larvae and damage to sunflower seeds
The rural community and OEO-financed housing for families of migrant farm workers
Response of six barley varieties to selected cultural practices
Chemical induction of fruit abscission in olives
A guide to the spider mites of cotton