Abstract:
To investigate the influence of biofertilizer, phosphorous and potassium on
growth, nodulation and yield of lentil, a field experiment was conducted at the
Agronomic field of Sher-e-Bangla Agricultural University, Dhaka-1207, during
rabi season from November 2019 to March 2020. Treatments consisted of two
biofertilizer levels: (i) B
0
= control and (ii) B
1
= Biofertilizer (Rhizobium) with
five combinations of phosphetic and potassic fertilizer: (i) F
0
= No use of P + K
fertilizer (control), (ii) F
1
= 25% less than recommended dose of P + K, (iii) F
2
= recommended dose of P + K, (iv) F
3
= 25% higher than recommended dose of
P + K and (v) F
4
= 50% higher than recommended dose of P + K. The experiment
was conducted in two factor Randomized Complete Block Design (RCBD) with
three replications. Growth and yield parameters like plant height, no. of branch
plant
-1
, nodule no. plant
-1
, dry weight plant
-1
, pods plant
-1
, 1000-seed weight,
grain yield, stover yield, biological yield etc. were collected from this
experiment. Data were analyzed by Statistix-10 software. Result revealed that
biofertilizer treated plot B
1
(Biofertilizer) was found to be superior in producing
maximum plant height, branches plant
-1
, dry weight plant
-1
, nodule no. plant
,
pods plant
-1
, grain yield and biological yield of lentil. On the other hand, P+K
fertilizer at 50% higher than recommended dose (F
4
) gave highest yield, plant
height, branches plant
-1
, dry weight plant
-1
, nodules no. plant
-1
,
1000-seed weight, grain yield, stover yield and biological yield. In case of
interaction, B
1
F
4
was found to be superior in producing maximum yield and yield
components like pods plant
-1
(71.39), 1000-seed weight (24.97 g), grain yield
(2773.20 kg ha
-1
), stover yield (2985.40 kg ha
-1
) and biological yield (5758.60
kg ha
-1
) which was statistically similar with B
1
F
2
and B
1
F
3
interactions. It can be
concluded that the interaction of biofertilizer with 90 kg ha
phosphorus
fertilizer and 35 kg ha
-1
potassium fertilizer (B
1
F
2
) would be recommended for
optimum yield of lentil (Binamasur-8).
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
