SSSAJ Grow Your Career with SSSA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Soil Sci Soc Am J 33:49-54 (1969)
© 1969 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Trierweiler, J. F.
Right arrow Articles by Lindsay, W. L.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Trierweiler, J. F.
Right arrow Articles by Lindsay, W. L.
Agricola
Right arrow Articles by Trierweiler, J. F.
Right arrow Articles by Lindsay, W. L.

EDTA-Ammonium Carbonate Soil Test for Zine1

J. F. Trierweiler and W. L. Lindsay2

ABSTRACT

A soil test was developed for the diagnosis of Zn-deficient soils. The test consists of shaking 10 g soil with 20 ml of extractant (pH 8.6) containing 0.01M EDTA (ethylenediaminetetraacetic acid) and 1M (NH4)2CO3. After 30-min shaking period the suspension is filtered, and Zn is determined directly in the filtrate by means of atomic absorption spectrophotometry. The new soil test was evaluated on 42 Colorado neutral and high lime soils whose response to Zn was determined in the greenhouse with corn (Zea mays) as the test crop. A critical level of 1.4 ppm of extractable Zn separated the Zn-deficient from the nondeficient soils. The new Zn soil test compares favorably with the dithizone method and is an improvement over the 0.1N HCl method. Unlike strong-acid extractants, the new procedure suppresses the dissolution of carbonates and oxides, and thereby avoids extraction of occluded Zn.

NOTES

Contribution from the Dept. of Agronomy, Colorado State Univ., Ft. Collins, and supported in part by Farmland Industries, Inc., Kansas City, Mo. Part of a thesis submitted by the senior author in partial fulfillment of the requirements for the Ph.D. degree. Published with the approval of the Director of the Colo. Agr. Exp. Sta. as Scientific Series Paper no. 1312.

2 Graduate Research Assistant and Prof. of Soils, respectively, Dept. of Agronomy, Colorado State Univ. Senior author is now First Lieutenant, U.S. Air Force, Kirtland AFB, Albuquerque, N.M.

Received for publication May 13, 1968. Accepted for publication July 3, 1968.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Journal of
Environmental Quality
Copyright © 1969 by the Soil Science Society of America.