Wind machines cost analysis: Cost records studied for effectiveness of machines in frost protection, operation and maintenance
Harold E. Wahlberg, University of California College of Agriculture
California Agriculture 4(11):13-13. DOI: 10.3733/ca.v004n11p13.
Not available – first paragraph follows:
Conflicting reports on the effectiveness of wind machines—installed as a substitute for the artificial heating of citrus orchards—prompted a study of the efficiency of the machines, under Orange County conditions.
Harold E. Wahlberg is Farm Advisor and County Director of Agricultural Extension Service, Orange County, University of California College of Agriculture.