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Distribution of 15 N‐Depleted N in Protein Fractions of Rice as Affected by Placement and Timing of N Fertilizer 1
Author(s) -
Patrick W. H.,
Reddy K. R.,
Mulbah Charles
Publication year - 1984
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/agronj1984.00021962007600040044x
Subject(s) - glutelin , loam , oryza sativa , agronomy , fertilizer , human fertilization , poaceae , growing season , chemistry , nitrogen , fraction (chemistry) , field experiment , zoology , biology , storage protein , soil water , ecology , biochemistry , chromatography , organic chemistry , gene
Both the quality and quantity of increased protein resulting from fertilization of grain crops are important considerations in evaluating the effects of N fertilization. A field experiment in which 15 N‐depleted N fertilizer was applied to lowland rice ( Oryza sativa L.) growing on Crowley silt loam (fine, montmorillonitic, thermic Typic Albaqualf) using different methods and times of application showed that total protein content could be increased, especially by late‐season application, but that little effect on protein distribution was obtained. Late‐season application resulted in a larger amount of fertiliizer N being present in the glutelin fraction but with no apparent effect on the more important water‐soluble albumin fraction.