Abstract:
The experiment was conducted in the farm of Sher-e-Bangla Agricultural University, Dhaka,
Bangladesh during the period from December 2012 to July 2012 to study the effect of various
organic manures and inorganic fertilizers with different water management on the growth and
yield of Boro rice. BRRI dhan29 was used as the test crop in this experiment. The experiment
consists of 2 factors i.e. Irrigation and fertilizer plus manure. Two levels of irrigations
=
Continuous flooding and I
= Saturated Condition)
0
: Control, T
1
2
: 100%
120
P
25
K
60
S
20
Zn
2
: 50%
NPKSZn + 5 ton cow-dung ha
-1
, T
3
: 70% NPKSZn + 3 ton cow-dung ha
-1
, T
: 50% NPKSZn + 5
ton compost ha
-1
, T
5
: 70% NPKSZn + 3 ton compost ha
-1
, T
6
4
: 50% NPKSZn + 3.5 ton poultry
manure ha
-1
and T
7
: 70% NPKSZn + 2.1 ton poultry manure ha
-1
, with 16 treatment
combinations and 3 replications. At the harvest, the yield parameters and yields were recorded;
the irrigation had no significant single effect on the yield and yield parameters but grain and
straw yields were found in continuous flooded condition. The yield parameters and yields were
significantly affected by fertilizer and manure. The highest grain yield
7
-1
-1
treatment. The higher grain yields were found by the application of organic plus inorganic
fertilizers compared to the use of chemical fertilizer alone. The yield parameters were not
significantly influenced by combined application of irrigation and fertilizer and the highest grain
yields
1
T
1
1
T
-1
7
2
T
6
-1
7
0
-1
1
2
1
6rice grain and straw nutrient concentrations were significantly affected by the application of
fertilizer and manure. The higher N, P, K & S concentrations and uptake were observed in the
treatments where fertilizer plus manure were applied. The highest concentrations of grain N
treatment respectively and lowest from T
0
5
, T
3
, T
7
and T
2
0
Description:
A Thesis
Submitted to the Department 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: JULY-DECEMBER, 2013