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Influence of Plant Population, Hybrid, and “Productivity Level” on Irrigated Corn Production 1
Author(s) -
Colville W. L.,
Dreier A.,
McGill D. P.,
Grabouski P.,
Ehlers P.
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/agronj1964.00021962005600030024x
Subject(s) - sowing , hybrid , agronomy , acre , productivity , yield (engineering) , grain yield , growing season , population , biology , environmental science , materials science , demography , sociology , metallurgy , economics , macroeconomics
Synopsis Highest grain yields were obtained from adapted full season corn hybrids grown at 16,000 to 20,000 plants per acre. Portions of the yield losses associated with planting early as compared to full season hybrids can be recovered by planting at higher populations per acre. “Productivity level” of the experimental areas and hybrid markedly influenced the slope, direction, and shape of grain yield curves.