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Effect of Nitrogen, Phosphorus and Potassium Fertilizer on the Economics of Producing Bluegrass Forage 1
Author(s) -
Walker William M.,
Pesek John,
Heady Earl O.
Publication year - 1963
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/agronj1963.00021962005500020032x
Subject(s) - fertilizer , forage , agronomy , yield (engineering) , phosphorus , nitrogen , human fertilization , nitrogen fertilizer , mathematics , potassium , environmental science , production (economics) , potash , economics , chemistry , biology , physics , macroeconomics , organic chemistry , thermodynamics
Synopsis Responses of a native bluegrass sod to topdressed applications of N, P and K fertilizer rates varying jointly were used to fit a forage yield equation and to calculate iso‐yield curves and least cost fertilizer ratios. It was then shown how these data and equations may be used in determining levels of fertilizer for optimum beef production and estimating the price of beef needed to justify fertilization of this type of sod.