Sugar beet spacing trials: About 33,000 beet plants per acre most nearly maintained maximum sugar beet production in Imperial Valley tests
John E. Swift, University of California College of Agriculture
California Agriculture 4(10):6-13. DOI: 10.3733/ca.v004n10p6.
Not available – first paragraph follows:
Sugar beet population studies were carried on in the Imperial Valley during the 1948 and 1949 seasons to establish the optimum plant population—either by row spacing or plant spacing in the rows.
John E. Swift is Farm Advisor, Imperial County, University of California College of Agriculture.