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MAIZE RESPONSE TO TIME AND RATE OF NITROGEN APPLICATION
HAFIZ MOHKUM HAMMAD1*, ASHFAQ AHMAD1,
AFTAB WAJID1 AND JAVAID AKHTER2
Abstract:
To find out effective
use of nitrogen (N) in autumn planted maize (Zea mays L.)
hybrid, a field
experiment was conducted during 2009 at Agronomic Research Area,
University of Agriculture, Faisalabad. Three N split application timings
depending upon various development stages were kept in main plots and
five rates of N; N1 (100 kg ha-1), N2
(150 kg ha-1), N3 (200 kg ha-1), N4
(250 kg ha-1) and N5 (300 kg ha-1) were
randomized in sub plots. Results revealed that maximum plant growth,
number of kernels per cob (419) and grain yield (8.27 t ha-1)
were recorded in N4 treatment. Contrary maximum days to
maturity (103.3 days) and biological yield (16.56 t ha-1)
were recorded in N5 treatment. Based on the results, it was
concluded that application of N in three split (at V2, V16 and R1 stage)
@ 250 kg ha-1 can be recommended for achieving optimum grain
yield under semi arid environment of Pakistan.
1Agro-Climatology Lab., Department of Agronomy, University of Agriculture,
Faisalabad-Pakistan
2Institute of soil and environment University of Agriculture,
Faisalabad-Pakistan
Postal Add: Agro-Climatology
Lab., Deptt. of Agronomy, University of Agric Faisalabad-38040
*Corresponding
author’s e-mail:
hafizmohkum@gmail.com Ph. # 03336177013
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