FERTILIZER MANAGEMENT OF HYV RICE IN THE POLDER ECOSYSTEM OF THE COASTAL ZONE OF BANGLADESH
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
A field experiment was conducted of the farmer field in polder 30 at Basurabad
village, Batiaghata, Khulna during July to December 2016 in order to develop
fertilizer management techniques for HYV rice under tidal ecosystem prevailing in
the polders of the coastal zone of Bangladesh. The experiment was comprised three
rice varieties viz. BRRI dhan51, BRRI dhan72, and kumragor local T. aman rice and
six fertilizer doses viz. No N + No P K S Zn(N
), 50% recommended N + No P K S
Zn (N
2
)
,
100% recommended N + No P K S Zn(N
1
3
)
50% recommended N + 50%
recommended P K S Zn(N
4
)
,
,
100% recommended N + 50% recommended P K S Zn
(N
5
)
,
100% recommended N + 100% recommended P K S Zn(N
) and The experiment
was laid out in a split-plot design with four replication. The purpose of the experiment
was to developed fertilizer management techniques for HYV rice under tidal
ecosystem prevailing in the polder of the coastal zone and to find out optimum
fertilizer dose of HYV Aman rice for polder ecosystem. Data on different yield
contributing characters, growth, and yield were recorded. Interaction between
varieties and fertilizer management showed a positive impact on growth, yield and
yield attributes of aman rice. Varieties showed the significant variations on plant
height, tillers hill
-1
, panicle length, grains panicle
-1
6
, thousand grains weight, grain
yield, straw yield, biological yield and harvest index. BRRI dahn51 gave the highest
grain yield (5.39 tha
-1
). Fertilizer management also significantly influenced the
growth and yield attributes of aman rice. The highest grain yield (4.98 t/ha) was
observed in N
. Interaction between variety and fertilizer management doses
significantly influences plant height, tillers hill
6
-1
, panicle length, grains panicle
,
thousand grains weight, grain yield, straw yield, biological yield and harvest index.
The highest grain yield (6.30 t ha
-1
) was recorded from the V
treatment
combination which was statistically similar with V
1
N
. The highest filled grain
panicle
-1
(137.75) was observed in V
treatment, biological yield (12.35 tha
1
N
5
-1
5
. Straw yield (8.98 tha
) was observed in V
3
-1
1
N
6
) was higher in V
N
and harvest index
(56.13 %) was higher in V
1
N
1
treatment. It may be concluded that V
1
treatment showed best result in the tidal ecosystem of the polder coastal zone
Description
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
Keywords
FERTILIZER MANAGEMEN,, HYV RICE, POLDER ECOSYSTEM,, COASTAL ZONE OF BANGLADESH