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 HighWire Citing Articles via Google Scholar Google Scholar Articles by Salé, L. Y. Articles by Chanasyk, D. S. Search for Related Content PubMed Articles by Salé, L. Y. Articles by Chanasyk, D. S. Agricola Articles by Salé, L. Y. Articles by Chanasyk, D. S.

Growth Response of Barley on Unweathered Fly Ash-Amended Soil

Dep. of Renewable Resources, Univ. of Alberta, 751 GSB, Edmonton, AB, Canada, T6G 2H1.

^* Corresponding author (anne.naeth{at}ualberta.ca).

ABSTRACT

A clay loam topsoil that tends to form surface crusts was mixed with unweathered fly ash from a western Canada power plant in mixtures ranging from 0 to 100% fly ash (v/v). Barley (Hordeum vulgare L. var. Leduc) was grown on the mixtures in a greenhouse to examine the potential for phytotoxicity caused by trace elements in the fly ash. Plant emergence was delayed when 6.25% fly ash was added to the soil, however, it was not reduced unless 25% fly ash was added. The addition of 6.25 and 12.5% fly ash increased both plant height and grain yield while 25% fly ash produced similar plant heights and grain yields as the 0% fly ash treatment. Boron toxicity symptoms were evident in treatments with 6.25% fly ash and B accumulated in silage and straw to levels in excess of amounts considered adequate for most plant species. There was no reduction in yield, however, unless 50% fly ash was added to the soil. Adding 25% fly ash increased Se concentrations favorably in the grain, straw, and silage. Fly ash increased plant Mo concentrations to alter Cu/Mo such that it could be a concern for ruminant diets.

This article has been cited by other articles:

				M. Mozaffari, M. P. Russelle, C. J. Rosen, and E. A. Nater Nutrient Supply and Neutralizing Value of Alfalfa Stem Gasification Ash Soil Sci. Soc. Am. J., January 1, 2002; 66(1): 171 - 178. [Abstract] [Full Text] [PDF]