Abstract:
An experiment was conducted at the Sher-e-Bangla Agricultural University
Farm, Dhaka during the period from June-December 2010 to study the effect of
variety and integration of organic and chemical fertilizers on the yield and
yield-contributing characters of Transplant aman rice varieties. The
experimental treatments included (a) two T. aman rice varieties viz., BRRI
dhan46 and Nizershail (b) nine levels of organic and chemical fertilizers viz.,
without fertilizer (control), recommended dose of chemical fertilizers, cowdung,
compost, recommended dose of chemical fertilizers + cowdung, recommended
dose of chemical fertilizers + compost, V2 of the recommended dose of chemical
fertilizers + cowdung, ½ of the recommended dose of chemical fertilizers +
compost, V2
of the recommended dose of chemical fertilizers + cowdung +
compost. The experiment was laid out in a split plot design with three
replications by placing the variety in the main plots and fertilizers in the
subplots. Significant effects on total tillers, effective tillers hilY', panicle length,
filled grains panicle, I 000-grain weight, grain yield and straw yield were
found by the application of fertilizers on the tested varieties. Significantly the
highest grain yield was found with BRRI dhan46 using either recommended
dose of chemical fertilizers (
4.76
t ha4
) or
1/2
of the recommended dose of
chemical fertilizers + cowdung + compost (4.65
t haj.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
