University of California

Gamma radiation device: Aids study of water movement in soil


J. M. Davidson
D. R. Nielsen
J. W. Biggar

Authors Affiliations

J. M. Davidson is Laboratory Technician, University of California, Davis; D. R. Nielsen is Assistant Professor, University of California, Davis; J. W. Biggar is Assistant Irrigationist in the Irrigation Department, University of California, Davis.

Publication Information

Hilgardia 16(2):8-9. DOI:10.3733/ca.v016n02p8b. February 1962.

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The ability of soil to transmit water affects the rate, frequency and method of irrigation–and can often limit cropping possibilities in non-irrigated areas. Knowledge can be obtained on water movement through soil by measuring changes occurring after different periods of time. The gamma ray apparatus measures soil moisture on the basis that $$ gamma rays will pass through a $$et soil than a dry soil.

Davidson J, Nielsen D, Biggar J. 1962. Gamma radiation device: Aids study of water movement in soil. Hilgardia 16(2):8-9. DOI:10.3733/ca.v016n02p8b
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