Abstract:
The study was conducted at the Iärm of BSMRAU. Gazipur during the period or November
to December. 2010 to enhance the production of spinach (Bela vulgans cv. 13AR1 spinach I)
through the improvement of growth and yield of spinach by optimizing the appropriate levels
of nitrogen fertilizer. The experiment was laid out in a Randomi,.ed Complete Block Design
(RCI3I)) comprising six treatments with four replicates each. The treatment combinations
were T(0 kg N ha"). T1 (50 kgN ha4). 12 (75kg N haj.T(1o0 kg N ha"). ts (125 kg N
ha")and T5 (I 50kg N ha") respectively. Amounts of N. P. K and S applied from urea. TSP.
MOP and gypsum were 68. 23. 17 and 4 kg ha-', respectively on being calculated by the
methods of I3ARC (2008). Obtained data on plant height., leaf number. root-shoot growth and
yield encompassing nutrient accumulation both in root and shoot revealed that nitrogen
fertilization has a positive effect on the short term growth and yield of spinach. Further
relationship found between N. P. K. S. Ca, Mg. Fe and Zn uptake and applied N doses
lollowed by the study of highest 13CR (benefit cost ratio) indicated that nitrogen fertilizer
applied at the rate of 75 kg N ha" has a better potential for the production of spinach.
Description:
A Thesis
Submiued to the Faculty of Agriculture,
Sher-e-Bangra Agriculiural University, Dhaka-1207
in part fulfillment of requirements for the degree of
MASTER OF SCIENCE (M.S.)
IN
AGRICULTURAL CHEMISTRY
SEMESTER: July- December'10
