Abstract:
In the Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, a pot
experiment was conducted during the period from December 2016 to March
2017 to study the effects of water management practices on growth, yield and
arsenic content of BRRI Dhan36 at different levels of soil added arsenic. Four
levels of As viz. 0, 2, 4 and 6 ppm were added to soil collected from Sher-eBangla
Agricultural University field. After two weeks of transplanting, two
water management practices viz. saturated condition and unsaturated condition
were imposed to the rice plants grown in pots which was continued till
harvesting. There were 8 treatment combinations such as As
+
Unsaturated condition, As
1
W
1
=As
1
+ Unsaturated condition, As
+
Unsaturated condition, As
3
W
1
=As
3
+ Unsaturated condition, As
+
saturated condition, As
1
W
2
= As
1
+ saturated condition, As
2
W
2
=As
+ saturated
condition, As
3
W
2
=As
+ saturated condition. The experiment was laid out in
Randomized Complete Block Design
3
, the
highest grain yield being recorded by As control
was found
in As control with unsaturated conditions and the lowest yield of 12.33 g pot
was in 6 ppm As treated pot with saturated conditions. Again the highest plant
height
plant height
. The adverse effect of As on crop was
aggravated due to the saturated condition of soil. Yield is comparatively lower
in saturated condition than unsaturated condition.
Description:
A Thesis
Submitted to The Department of Soil Science,
Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE (MS)
SOIL SCIENCE
