Abstract:
A field experiment entitled “Growth and yield of Mustard as affected by
agronomic managements” was carried out during Rabi season of 2018-19 at the
Agronomy field of Sher-e-Bangla Agricultural University. The experiment was
composed of two factors, viz., (i) Two varieties - V
1
ii
= BARI Sarisha-14 and V
2
= BARI Sarisha-16 and (ii) Seven agronomic managements - M
1
= Control (No
management), M
2
= No fertilizer but all other managements, M
3
= No weeding
but all other managements, M
4
= No irrigation but all other managements, M
5
=
No thinning but all other managements, M
6
= No pesticides but all other
managements, M
7
= Recommended management. The treatments were
replicated thrice in split-plot design. The soil of experimental plot was loam in
texture, having pH 6.0 to 6.3 and low in organic carbon. Results revealed that
varieties, different agronomic managements and their interaction significantly
affected the growth and different yield parameters of mustard. The tallest plant
(11.75, 72.48, 94.86 & 124.60 cm at 20, 50, 65 DAS & at harvest respectively),
longest leaf (7.10, 15.80, 14.13 & 14.36 cm at 20, 35, 50 & 65 DAS
respectively), highest values for branches plant
-1
(3.12, 4.19 & 5.15 at 50, 65 &
at harvest respectively), dry matter accumulation (0.52, 1.49 & 5.65 g plant
at
20, 35 & 65 DAS respectively), SPAD value (49.55% at 50 DAS), no. of siliquae
plant
-1
(34.11), length of siliqua (4.09 cm), 1000-seed weight (3.94 g), seed yield
(0.98 t ha
-1
), stover yield (3.57 t ha
-1
) and biological yield (4.5 t ha
) were
observed higher in BARI Sarisha-16. Therefore, BARI Sarisha-16 performed
superior than BARI Sarisha-14. But regarding plant population (189.38), leaf
number (10.56, 14.41 & 20.59 at 35, 50 & 60 DAS), SPAD value (43.05% at 35
DAS) and seeds silliqua
-1
(26.39), BARI Sarisha-14 performed better than BARI
Sarisha-16. Among the agronomic managements, M
7
(recommended
management) performed better that was similar with M
3
, M
5
and M
6
in some
parameters. The lowest result was observed from M
1
(no management)
treatment. Compared to that of recommended management, the highest yield
reduction was observed for no management (33.90 %) that followed by no
fertilizer (32.20 %), no thinning (22.03 %), no irrigation (18.64 %), no weeding
(13.56 %) and no pest management (5.08 %). The V
2
M
7
(BARI Sarisha-16 with
recommended management) performed better than all other combinations. So it
may be concluded that highest priority should be given on fertilizer application,
thinning and irrigation for mustard cultivation.
Description:
A Thesis
Submitted to the Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY