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Soil Temperature and Phosphorus Effects Upon Nutrient Absorption by Barley 1
Author(s) -
Power J. F.,
Grunes D. L.,
Reichman G. A.,
Willis W. O.
Publication year - 1964
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/agronj1964.00021962005600030031x
Subject(s) - phosphorus , agronomy , absorption (acoustics) , dry matter , nutrient , chemistry , fertilizer , soil nutrients , hordeum vulgare , poaceae , zoology , materials science , biology , organic chemistry , composite material
Synopsis N and P absorption by barley was maximum at soil temperatures near optimum for dry matter production. Optimum temperatures were 52 to 59° F. for a soil low in P, and slightly higher for a soil higher in NaHCO 3 ‐soluble P. Fertilizer P absorption was more dependent upon soil temperature than was the absorption of soil P. The relation between dry weights and percent P in plant tops varied with temperature. The “critical level” for P was lowest, and the efficiency of P utilization was highest at the 59° F. temperature.