Abstract:
The experiment was conducted at the Research Farm, Sher-e-Bangla Agricultural
University, Dhaka, Bangladesh during the period from July 2015 to November 2015 to
determine the effectiveness of mixed NPK briquette fertilizer on the growth and yield
of transplanted Aman rice (BR11). The experimental field belongs to the Agroecological
zone (AEZ) of “The Modhupur Tract”, AEZ-28. The experiment was laid
out in a randomized complete block design(RCBD) with four replications. The total
numbers of plots were 20. The size of each plot was 6 m
2
(3 m × 2 m). The five
treatments were T
0
: 0kg N/ha (control), T
: 78kg N/ha as Prilled Urea (Recommended
dose of FRG 2012), T
2
1
: 52kg N/ha as Prilled Urea, T
: 52kg N/ha as Urea Briquette
(one 1.8 g briquette/4 hills of rice) and T
4
3
: 52kg N/ha as NPK briquette (one 3.4g
briquette/4hills of rice). The result of yield contributing characters such as the tallest
plant height (122.68 cm) was found in treatment T
(One 3.4 g NPK briquette/4 hills of
rice). The longest panicle length (25.90 cm) was recorded in the treatment T
4
(one 3.4 g
NPK briquette/4 hills of rice). The maximum number of effective tillers/hill (13.55)
was found from T
(52 kg N/ha as prilled urea) treatment and the maximum 1000 seed
weight (25.25 gm) was recorded from treatment T
2
(one 3.4 gm NPK briquette/4 hills
of rice). The highest number of filled grain (174.50) was found in the treatment T
4
(52
kg N/ha as Prilled urea) and the highest number of non effective tillers/hill (1.48) was
found from the treatment (control) T
and the highest unfilled grain (12.85) was found
from the treatment T4 (one 3.4g NPK briquette/4 hills of rice). The highest grain yield
of (2.04 kg/plot) (3.38 t/h) was recorded from the treatment T
0
(52 Kg N/ha as one 1.8
g urea briquette/4 hills of rice) and the NPK briquette was represented almost similar
grain yield (3.28 t/ha) at the treatment T
4
3
which had no statistical significant difference
with the highest yield T
treatment. The highest straw weight (3.17 kg/plot) was
recorded from the treatment T
3
(one 3.4gm NPK briquette/4 hills). However, Mixed
4
4
2 NPK and USG showed better grain yield and straw yield compared to conventional
broadcast prilled urea. USG and mixed NPK fertilizer showed better and almost similar
performance to growth and yield of transplanted aman rice (BR11) compared to the
prilled urea.
4
Description:
A Thesis
Submitted to the Faculty of Agriculture, Dept. of Soil Science
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
Soil Science
SEMESTER: January -June, 2016