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 Juska, F. V. Articles by Hovin, A. W. Search for Related Content PubMed Articles by Juska, F. V. Articles by Hovin, A. W. Agricola Articles by Juska, F. V. Articles by Hovin, A. W.

Growth Response of Merion Kentucky Bluegrass to Fertilizer and Lime Treatments¹

The performance of ‘Merion’ Kentucky bluegrass to 10 fertilizers, applied at three rates, at two pH levels, is herewith reported. Carriers incorporated with fertilizers had little or no effect on grass growth; however, the carrier used in one fertilizer (24-4-6) with 23.19% watersoluble nitrogen mixed with reed sedge peat may have absorbed soluble nitrogen to cause slower nitrogen release. Highest total grass yield was obtained from ammonium nitrate and lowest from urea-form. The lower yields were obtained from less soluble sources of nitrogen while the soluble urea source (454-0) was intermediate. Loss of nitrogen in the form of ammonia may have accounted for the relatively low yield from this soluble nitrogen source. All fertilizers significantly increased yield of Merion Kentucky bluegrass at pH 4.8 and pH 7.0, but the interaction between fertilizers and pH levels was not significant. There was a highly significant difference in yield among fertilizer sources. Selection of a fertilizer source or form of nitrogen fertilizer should be based on the relative importance of convenience, safety, cost, and response of grass growth.

Key Words: Poa pratensis • Fertilizer • carriers • Sources of nitrogen

² Research Agronomist, Agricultural Administrator, and Research Agronomist, Crops Research Division. Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 20705, respectively.

Received for publication May 3, 1969.