Abstract:
Zinc deficiency is widely spread in Banglabeshi paddy soils and has negative impact on
national rice (Oryza sativa L.) production. A field experiment was conducted at the
experimental plot of Sher-e-Bangla Agricultural University, Dhaka from December 2017 to
May 2018 to evaluate the effects of different zinc application methods on growth and yield of
boro rice. The experiment was consisted of two factors viz. - factor A. variety -3; (i) V
1
=
BRRI dhan45; (ii) V
2
= BRRI dhan63; and (iii) V
3
= BRRI hybrid dhan3; and factor B.
methods of Zn application 4; (i) F
0
= No zinc application; (ii) F
1
= Zn application through root
soaking; (iii) F
2
= Zn application through foliar spray; (iv) F
3
= Zn application through soil
application. The experiment was laid out following split-plot design with three replication
where variety was assigned in main plot and zinc application methods in subplot. Data were
collected on growth characters, yields attributes and yield of rice. The result revealed that
BRRI hybrid dhan3 produced the highest yield (8.47 t ha
-1
) because of its higher panicle
length (23.48 cm), grains panicle
-1
(100.33), weight of 1000 seeds (29.33g), straw yield (9.10
t ha
-1
) and the lowest unfilled grains panicle
-1
(6.84). On the other hand, Zn application through
soil application produced the highest grain yield (7.73 t ha
-1
) and also produced the highest
tillers hill
-1
(14.49), panicle length (23.69 cm), filled grains panicle
-1
(93.65) weight of 1000
seeds (27.03g), straw yield (8.00 t ha
-1
) along with the lowest unfilled grains panicle
(7.32).
Interaction of BRRI hybrid dhan3 × Zn application through soil application was found
promising for producing the highest yield, yield attributes and growth characters of rice.
-1
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
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2018
