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Utilization of Tracer Nitrogen by Rice in Relation to Time of Application 1
Author(s) -
Patnaik S.,
Broadbent F. E.
Publication year - 1967
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/agronj1967.00021962005900030027x
Subject(s) - sowing , agronomy , ammonium sulfate , nitrogen , fertilizer , nitrogen fertilizer , ammonium , tracer , stage (stratigraphy) , rice plant , environmental science , chemistry , mathematics , biology , physics , paleontology , chromatography , organic chemistry , nuclear physics
Uptake of N 16 tagged ammonium sulfate by rice plants was used to evaluate the efficiency of fertilizer applications. Two‐thirds of the basal rate at planting followed by one‐third top‐dressed at boot stage resulted in the highest recovery of fertilizer nitrogen as compared to the full rate at planting or top‐dressing at the tillering stage.