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Effects of Nitrogen Application Time on Ear Components of Maize
Author(s) -
Vig J. C.
Publication year - 1989
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1989.tb00723.x
Subject(s) - sowing , agronomy , nitrogen , yield (engineering) , field experiment , mathematics , biology , chemistry , materials science , organic chemistry , metallurgy
Pot and field experiments were conducted with two varieties of maize to study the effects of nitrogen applied in different doses. The total amount of N applied was same in all variants of one experiment. The development of maize plants varied due to variety and N‐doses. In pot experiment no N application before sowing or in the begin of the ear differentiation reduced total number of spikelets, spikelet rows/ear, length of ear, kernel yield as well as plant height. In field experiments an amount of 30 kg N/ha in the begin of ear formation was sufficient for maximum increase in almost all yield characteristics. Higher doses than that were not effective to promote these parameters further.