Premium
The Effect of Different Fertility Levels on Yield, Persistence, and Chemical Composition of Alfalfa 1
Author(s) -
Gerwig John L.,
Ahlgren Gilbert H.
Publication year - 1958
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/agronj1958.00021962005000060001x
Subject(s) - potash , persistence (discontinuity) , agronomy , phosphorus , potassium , nitrogen , yield (engineering) , human fertilization , chemical composition , composition (language) , growing season , chemistry , biology , zoology , fertilizer , materials science , linguistics , philosophy , geotechnical engineering , organic chemistry , metallurgy , engineering
Synopsis Potash was the most important factor in maintaining high yields and persistence of an alfalfa stand. The “critical percentage” for potassium content varied from season to season and probably lies somewhere between 1.42 and 1.84%. Nitrogen fertilization tended to decrease yields and stands whereas phosphorus had no significant beneficial effect.