Abstract:
An experiment was carried out at Soil Science farm of Sher-e-Bangla Agricultural
University, Sher-e-Bangla Nagar, Dhaka to study the combined effect of chemical
nitrogenous fertilizer (urea) and treated sludge on the growth and yield of BRRI
dhan62 during the period from July to October, 2014. The experiment was laid out
in a randomize block design with three replications. Seven treatments of the
experiment including control were as T
1
= Absolute Control, T
= 100%
Recommended Field Dose (RFD) of Urea, T
= 80% RFD of Urea + 20% sludge,
T
4
= 60% RFD of Urea + 40% sludge, T
5
3
2
= 40% RFD of Urea + 60% sludge, T
=
20% RFD of Urea + 80% sludge and T
= 100% sludge. Here it can be mentioned
that recommended fertilizer dose (RFD) per hectare = Urea 150kg + TSP 71kg +
MP 71kg + Gypsum 41.1kg + ZnSO
4
7
11.2kg + sludge 0.0kg and 1kg urea = 10 kg
sludge. The results from the study revealed that the highest plant height (99.93
cm), the highest number of tiller per hill (14.95) and the longest panicle (23.99
cm) was recorded from T
(100% RFD of urea); the maximum number of grain
per panicle (98.21) and the highest number of filled grain per panicle (91.95) was
recorded from T
4
2
(60% RFD of urea + 40% sludge). The maximum number of
effective tiller per hill (14.56), the highest weight of 1000 seeds (24.23g), Seed
yield t/ha
-1
(4.36), and Straw yield t/ha
-1
(5.66) were achieved from T
(80% RFD
of urea + 20% sludge). Chemical fertilizer in combination with sludge performed
better in respect of almost all parameters studied.
3
6
Description:
A Thesis
Submitted to the Department of soil science
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SOIL SCIENCE
SEMESTER: JANUARY - JUNE 2015
