HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Chapin, J. S. Articles by Caldwell, A. G. Search for Related Content PubMed Articles by Chapin, J. S. Articles by Caldwell, A. G. Agricola Articles by Chapin, J. S. Articles by Caldwell, A. G.

Effect of Fertilizers on the Conductivity of Saturated Soil Extracts¹

ABSTRACT

Varying concentrations of fertilizers were mixed with Yahola fine sandy loam, Norwood silt loam, and Miller clay. Conductivity of the saturation extract was determined using a Wheatstone bridge. There was a marked difference in the conductivity caused by the different fertilizer materials. The fertilizers used are arranged in order of increasing effect (based on weight per unit of soil) on conductivity of the saturation extract: urea, ordinary superphosphate, concentrated superphosphate, phosphoric acid, monoammonium phosphate, diammonium phosphate, potassium sulfate, ammonium nitrate, and potassium chloride. Urea was unique in that the conductivity of the saturated extract increased with time of incubation.

¹ Contribution of Texas Agr. Exp. Sta. (T.A. 4315), Dept. Soil and Crop Sci., Texas A&M College, in cooperation with the Div. Agr. Relations, TVA. Presented before Div. IV, Soil Sci. Soc. Am., Dec. 8, 1960. Chicago, Ill.

² Formerly Graduate Research Assistant, now Assistant Professor, and Associate Professor, Texas Agr. Exp. Sta., respectively, College Station, Tex.

³ Formerly Associate Professor, Texas Agr. Exp. Sta., College Station, Tex. now Professor, Louisiana State University, Baton Rouge.

Received for publication February 25, 1963. Accepted for publication May 22, 1963.