| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/299976 |
| Date | January 1968 |
| Creators | Conway, James T. |
| Contributors | Department of Agricultural Chemistry and Soils |
| Publisher | College of Agriculture, University of Arizona (Tucson, AZ) |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | Spanish |
| Type | Article |
| Rights | Copyright © Arizona Board of Regents. The University of Arizona. |
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