Abstract:
A field experiment was conducted at the research farm of Sher-e-Bangla
Agricultural University, Dhaka during December 2007 to February 2008 to
study the effects of different levels of nitrogen and phosphorus on the growth
and yield of garden pea. The experiment was laid out in a Randomized
Complete Block Design (ReBD) with three replications of each treatment. The
unit plot size was 2.4 m2 (1.6 m x 1.5 m). There were 12 treatment
combinations in the experiment comprising 4 levels of N (0. 30. 60 and 90
kglha designated as No. N30, N60 and N9Qt respectively) and 3 levels of P (0, 50
and 75 kg P20.slha designated as Po- Pso & P75' respectively). The individual
and combined effects of nitrogen (N) and phosphorus (P) on growth and yield
of garden pea were studied. The individual and interaction effects of N and P
on growth and yield was found significant.
Nitrogen @ 90 kg/ha gave the highest plant height, root length, highest number
of branches per plant. highest pod length. highest number of seed per pods
1000-seecJ weight, highest green pod yield and seed yield per hectare. The
highest plant height. highest root length, highest green pod yield was recorded
in 75 kg P20siha. Phosphorus @ 50 kg/ha gave the highest number of branches
per plant, highest length of pods and seed yield per hectare. The treatment
combination ofNQ01'soproduced the maximum plant height. root length. highest
green pod yield and highest seed yield per hectare but the treatment
combination of N90 P75 gave the maximum plant height at vegetative stage.
highest number of pods per plant, highest length of pod and maximum N. P, K
and S content in plants. Lowest N. P, K and S contents were found in control
(NoPo) treatment. From the present findings it can be concluded that combined
application of N @ 90 kglha and P @ 50 kg/ha is the most suitable
combination to achieve the maximum return from garden pea plants.
