Abstract:
A pot experiment was conducted at the net house of the Department of Agronomy, Sher-eBangla
Agricultural University, Dhaka during the period from April 2019 to August 2019 to
investigate the growth, yield performance and seed quality of blackgram as influenced of
organic manure, phosphorous and potassium. The experiment was laid out in two factors
following Completely Randomized Design (CRD) with three replications. Factor A: Organic
manure-3; viz. OM
0
= Control, OM
1
= Cowdung, OM
2
= poultry litter and Factor B: Chemical
fertilizer-4; viz. F
0
= Control, F
1
= Recommended dose of chemical fertilizer, F
2
= 25% higher
recommended dose of P+K fertilizer, F
3
= 50% higher recommended dose of P+K fertilizer.
The rate of urea-40kgha
-1
, TSP-70 kgha
-1
and mop-35 kgha
-1
and the rate of cowdung and
poultry litter were 10 and 5 t ha
-1
respectively.The resuls revealed that effect of poultry litter
(OM
2
) showed its superiority by producing highest yield (1419.5 kg ha
-1
), which may be
attributed to higher blackgram pods plant
-1
(23.81), seeds pod
-1
(5.49), seed weight plant
(3.89), weight of 1000 seed (39.83 g) as well as highest pod length (5.11 cm), pod diameter
(5.21 dm), plant height (49.68 cm), branches plant
-1
(7.35) and dry weight plant
(36.94 g) in
this treatment. On the other hand, 50% higher recommended dose of P+K fertilizer seems
promising in blackgram cultivation as this treatment (F
3
) gave the highest seed yield (1372.6
kg ha
-1
) along with highest pod length (5.08 cm), pod diameter (5.19 dm), pods plant
(25.15), seeds pod
-1
(5.44), seed weight plant
-1
(4.09 g) and 1000 seed weight (39.49 g).
Among the interactions, OM
2
F
3
out yielded by producing highest yield (1529.4 kg ha
) than
other interactions. This interactions also produced the tallest plant (53.17 cm), highest
number of branches plant
-1
(7.75) maximum dry weight plant
-1
(40.51 g), pod length (5.4
cm), pod diameter (5.43 mm), pods plant
-1
(29.65), seeds pod
(4.95g), 1000 seed weight (44.15 g), seed yield (1529.4 kg ha
-1
-1
-1
-1
(5.76), seed weight plant
), strover yield (1759.4 kg ha
), biological yield (3288.8 kg ha
-1
), harvest index (46.60%), germination percentage (96.83%),
seedling length (23.053cm), seedling dry weight (0.038 g) and lowest EC test value (1621.1
mS cm
-1
). The study clearly indicated that poultry litter as organic manure and 50% higher
recommended doses of P+K fertilizer and their interaction seem promising for producing
maximum seed yield and the best quality seed of Blackgram.
Description:
A Thesis
Submitted to the Institute of seed technology
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
SEED TECHNOLOGY