Abstract:
The experiment was conducted at the Research Farm of Sher-e-Bangla Agricultural
dd
siA
University, Dhaka- 1207. during November 2010 to March 2011 to evaluate the effect
of nitrogen (N) and phosphorous (P) on the growth and yield of BAR] tomato-2
(Ratan). The experiment was laid out in a Randomized Complete Block Design
(RCBD) with three replications. The treatments used were: four levels of nitrogen as
No : o kg N/ha, Nico: 100 kg N/ha, N 15 0: 150 kg N/ha and N200: 200 kg N/ha and four
levels of phosphorous as P0: 0 kg P205/ha, P50:
50
kg P205/ha. P100: 100 kg P205/ha
and P150: ISO kg P205 Tha with 16 treatment combinations. Yield and yield
contributing characters. N. P and K concentration in plant and post harvest soil were
recorded. Plant height at 60 days after transplanting, number of branches per plant.
number of
flowers
per plant, number of fruits per plant and fruit weight per plant
increased significantly with increasing N level up to 150 kg /ha, whereas fruit yield
increased significantly up to 200 kg N/ha. All these parameters also increased
significantly with increasing the level of P application up to 150 kg /1ia. 1-lowever. the
treatment combination N2 P350 showed the maximum plant height at harvest (93.62
em), number of flowers per plant (49.86),number of fruits per cluster(3.99), number
of fruits per plant (38.30) and rate of fruits setting (76.82%). On the other hand, the
treatment combination N200P1 00
produced (lie maximum fruit weight (2.5 kg/plant)
and fruit yield (89.93 1./ha). N, P and K concentrations in straw and fruit were the
highest in N200P150
treatment. The treatments had no significant effect on pH of post
harvest soil. 1-lowever, increasing the N application up to 200 kg/ha increased soil
total N and available K o significantly and P content up to N
150 treatment. Application
of' P had no significant effect on total nitrogen but P1 50
produced the highest P and K
content in soil. N
200P150
combination had the highest N (0. 119%) and P (44.77 ppm)
concentration in plant.
Description:
A Thesis
Submitted to the Department of Soil Science
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SOIL SCIENCE
SEMESTER: JULY-DECEMBER, 2009
