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Soil and Plant Responses to Long‐Term Fertilization of Alfalfa ( Medicago sativa L.) 1
Author(s) -
Markus D. K.,
Battle W. R.
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/agronj1965.00021962005700060029x
Subject(s) - medicago sativa , human fertilization , agronomy , hay , persistence (discontinuity) , alfalfa hay , fertilizer , biology , environmental science , rumen , geotechnical engineering , food science , fermentation , engineering
Synopsis Yields and persistence were greatly increased by K fertilization over a period of 9 years. Yields were not affected and persistence was reduced by N and P. P concentration in alfalfa hay was dependent on rainfall rather than on the P fertilizer. Levels of soil K and P supplies were considerably influenced by K and P. Continued alfalfa production was largely dependent on the relative abundance of K provided by fertilization. P from the soil supply was sufficient for maximum yields, but supply was depleted without application of P.