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Nitrogen Fertilizer for Corn Production on an Irrigated Chestnut Soil 1
Author(s) -
Pumphrey F. V.,
Harris Lionel
Publication year - 1956
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/agronj1956.00021962004800050004x
Subject(s) - agronomy , plough , loam , sowing , fertilizer , yield (engineering) , nitrogen , environmental science , crop rotation , productivity , nitrogen fertilizer , growing season , irrigation , mathematics , soil water , crop , chemistry , biology , soil science , materials science , macroeconomics , organic chemistry , economics , metallurgy
Synopsis Studies of irrigated corn on old rotation plots on very fine sandy loam had the following general results: In year of N fertilizer application, increased yields were influenced by season and soil productivity as well as by time and rate of application. Time of application had little influence on yield on low productivity soil. Marked yield increases from residual N were also influenced by the above factors. Fertilizer N was more efficient during year of application when applied before plowing, at planting time, or side‐dressed when corn was 6 to 12 in. high than when side‐dressed when corn was 20 to 36 in. high. Yield increases from residual nitrogen increased with delay in time of application.