Author (S): M. S. Islam*, A. R .M. Solaiman, A. J. M. S. Karim, G. K. M. M. Rahman, M. M. Islam
*Corresponding author; Email:shafiq_agri@yahoo.com
Abstract
A field experiment was
conducted at Bangabandhu Sheikh Mujibur
Rahman Agricultural University (BSMRAU) Research Farm, Gazipur, Bangladesh
during Aman season of 2008 to evaluate the effect of combined use of
organic and inorganic sulphur (S) sources on yield contributing characters and
yield of T. Aman rice (cv. BRRI dhan33). The
eight treatments were T0=Control i. e. no fertilizers; T1= recommended dose (RD) of fertilizers (N80, P16,
K24, S12); T2= 50 % S of RD through gypsum, 6
kg S ha-1 and 50 % S of RD
through cowdung (CD), 15 t CD ha-1 (6 kg S ha-1); T3= 75 % S of RD through gypsum, 9 kg S ha-1 and 25
% S through cowdung (CD), 7.5 t CD ha-1 (3 kg S ha-1); T4= 50 % S of RD through gypsum, 6 kg S ha-1and
50 % S of RD through poultry manure
(PM), 9 t PM ha-1 (6 kg S ha-1); T5= 75 % S of RD through gypsum, 9 kg S ha-1 and 25
% S of RD through poultry manure(PM),
4.5 t PM ha-1 (3 kg S ha-1); T6= 50 % S of RD
through gypsum, 6 kg S ha-1and 50 % S of RD through household wastes (HW), 16 t HW ha-1 (6 kg S ha-1);
T7 = 75 % S of RD through
gypsum, 9 kg S ha-1 and 25 % S of RD
through household wastes (HW), 8
t HW ha-1 (3 kg S ha-1).The
nutrient S as per treatments and nitrogen (N), phosphorus (P) potassium (K) and
zinc (Zn) as per recommended dose were applied. Combined application of
inorganic and organic sources of S had a significant positive effect on growth,
yield and yield contributing characters of T. Aman. The effect of PM was
prominent than that of CD and HW. The treatment 50 % S through gypsum and 50 %
S through PM (T4) produced the highest grain (4.61 t ha-1) and was at par with T2 and T6 when
T0 had the lowest grain yield of 2.50 t ha-1.
