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    Author(s): Don A. Duncan; Jack N. Reppert
    Date: 1966
    Source: Res. Note PSW-RN-108. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p
    Publication Series: Research Note (RN)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (0 B)

    Description

    Helicopters may prove the best method of applying sulfur fertilizer on rangeland too steep for ground application, or with no nearby landing strip for fixed-wing aircraft. Helicopter fertilization of 457 acres of the San Joaquin Experimental Range in central California in 1960 and 1963 was fast and practical.

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    Citation

    Duncan, Don A.; Reppert, Jack N. 1966. Helicopter fertilizing of Foothill Range. Res. Note PSW-RN-108. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

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