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Nitrogen‐Potassium Utilization by Three Pasture Grasses 1
Author(s) -
Duell Robert W.
Publication year - 1965
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1965.00021962005700050010x
Subject(s) - pasture , agronomy , nitrogen , potassium , poaceae , dactylis glomerata , fertilizer , grazing , nitrogen fertilizer , biology , zoology , chemistry , organic chemistry
Synopsis Orchardgrass yields were reduced more by the inadequacy of applications of NH 4 NO 3 only, than were tall fescue or Kentucky bluegrass. Percentage of K in plant tissue decreased where NH 4 NO 3 was the only fertilizer applied. Orchardgrass showed the greatest and Kentucky bluegrass the least response to differences in K. In P content and responsiveness to P availability, the species ranked: orchardgrass>tall fescue>Kentucky bluegrass. Plots receiving only NH 4 NO 3 had higher percentages of crude protein. Tail fescue generally had the lowest percentage of crude protein.