Seedlings on old citrus soils: Effect of water, acid, alkali, and alcohol leaching of old citrus soils on growth of citrus seedlings
James P. Martin, University of California College of Agriculture
California Agriculture 4(12):3-11. DOI: 10.3733/ca.v004n12p3.
Not available – first paragraph follows:
Orange, lemon, and grapefruit trees in most southern California citrus-producing areas do not grow so well when planted in soil previously cropped to citrus as when planted in a soil for the first time.
James P. Martin, Assistant Chemist, University of California College of Agriculture, Riverside.