Abstract:
A field experiment was conducted at the Sher-e-Bangla Agricultural University,
Dhaka, Bangladesh during March, 2019 to July, 2019 in aus rice season with a
view to study the growth and yield variations in aus rice as influenced by
integrated fertilization. The treatments consist of two rice varieties namely V
1
=
BRRI dhan48 and V
2
= BRRI dhan82 and seven fertilization levels as T
1
= 100%
RDF (Recommended dose of fertilizers) (148 kg N ha
ii
-1
+ 52 kg P ha
+ 74 kg
K ha
-1
), T
2
= Poultry manure (10 t ha
-1
), T
3
= Vermicompost (4 t ha
=
Compost (5 t ha
-1
), T
5
= Poultry manure @ 10 t ha
-1
-1
-1
), T
4
+ 50% RDF, T
6
=
Vermicompost @ 4 t ha
-1
+ 50% RDF, T
7
= Compost @ 5 t ha
+ 50% RDF.
The experiment was carried out in split plot design with three replications.
Results revealed that BRRI dhan48 was superior to BRRI dhan82 in respect of
different parameters. Treatment T
5
gave significantly highest grain yield. In case
of combined effect, BRRI dhan48 with V
1
T
5
registered significantly maximum
total tillers hill
–1
(21.04), leaves hill
–1
-1
(95.57), above ground weight plant
(48.11 g), effective tillers hill
–1
(20.00), longest panicle (27.94 cm), highest filled
grains panicle
–1
(139.67), 1000 grain weight (26.37 g), grain yield (4.88 t ha
),
straw yield (5.93 t ha
-1
) and biological yield (10.81 t ha
-1
). In respect of grain
yield V
1
T
1
was (4.61 t ha
-1
). It may be advocated that Poultry manure @ 10 t
ha
-1
+ 50% RDF was found to be the best for achieving maximum yield from
variety BRRI dhan48.
Description:
A Thesis
Submitted to the Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
