W. M. JarrellSoil and Environmental Sciences, University of California, Riverside, CA 92521
Search for other papers by W. M. Jarrell in Google ScholarClose
,
R. A. Shepherd
R. A. ShepherdSoil and Environmental Sciences, University of California, Riverside, CA 92521
Search for other papers by R. A. Shepherd in Google ScholarClose
, and
R. L. Branson
R. L. BransonSoil and Environmental Sciences, University of California, Riverside, CA 92521
Search for other papers by R. L. Branson in Google ScholarClose
Contributor Notes
Received for publication February 8, 1979.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper must therefore be hereby marked advertisement solely to indicate this fact.