EFFECT OF APPLIED NITROGEN AND WATER STRESS ON THE YIELD AND QUALITY OF BARLEY (Hordeum vulgare L. )
EFFECT OF APPLIED NITROGEN AND WATER STRESS ON THE YIELD AND QUALITY OF BARLEY (Hordeum vulgare L. )
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Date
1986-10
Authors
NIMZING, NANCHAK CHIRDAN
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Abstract
Field trials were conducted at the Irrigation
Research Station, Kadawa if Institute for Agricultural
Research, Ahmadu Bello University, during the 1984/85
and 1985/86 dry seasons, to study the effects of
moisture stress imposed at various growth stages under
different nitrogen levels on yield and quality of
malting barley,
Moisture stress imposed ,by missing irrigation at
any growth stage before dough stage reduced most of
the growth parameters viz: plant height, number of
tillers per plant, leaf area per plant, leaf area
index, flag leaf area ana dry matter production.
However, N application increased these growth
parameters, Missing irrigation at jointing and
heading stages reduced the mean number of days to
maturity whereas nitrogen application upto 60 kg
N/ha increased the number of days to maturity.
Missing irrigation during early stages from
tillering to heading reduced the number of spikes
per metre square and number of grains per spike.
The final grain yield was adversely affected by
withholding irrigation at any stage of growth except
heading stage. The maximum yield reductions of 13
and 32 per cent were observed when irrigation was missed
at jointing stage in 1985 and 1986, respectively.
A nitrogen fertilizer rate of 60 kg N/ha was found
to be optimum for efficient water utilization and
acceptable grain protein content in malting barley
Description
A thesis submitted to the Postgraduate School,
Ahmadu Bello University
in partial fulfilment of the requirements for the
Degree of Master of Science in Agronomy
DEPARTMENT OF AGRONOMY
FACULTY OF AGRICULTURE
AHMADU BELLO UNIVERSITY
ZARIA, NIGERIA
OCTOBER, 1986
Keywords
APPLIED NITROGEN,, WATER STRESS,, QUALITY OF BARLEY,, (Hordeum vulgare L. )