Khondakar Yeasen Mohammad Shoukat, Abu Bakar Siddique, Dr. Md. Hazart
Ali, Hasibul Hasan, Md. Marufur Rahman*
*Corresponding
author: marufur233@gmail.com
Abstract
In order to
investigate the effect of manuring and split application of nitrogen
on grain yield of maize an experiment was conducted at the agronomy
field laboratory of Sher-e-Bangla Agricultural University, Dhaka,
during the period from March to June 2006 wherein the treatments
comprised two split applications of nitrogen (SP1= 25 and 45 days
after sowing and SP2=25, 45 and 65 days after sowing) and four manure
(M) application doses (M1=0, M2=5, M3=10 and M4=15 t ha-1). The
treatments were arranged in split plot design with three
replications. Inorganic fertilizers +cow-dung 15 t ha-1 (M4
treatment) gave the best response for all the parameters were as
inorganic fertilizer(IF) only (M1 treatment) gave the poorest
response to grain and stalk yields which ranged respectively from
5.43 to 9.02 t ha -1 and from 6.76 to 12.16 t ha -1 due to different
maturing treatments. The highest grain yield was obtained from M4
treatment, identically followed by M3 treatment. The application of
cow-dung at the rate of 10 and 15 t ha-1 together with recommended
dose of inorganic fertilizers improved grain yield over inorganic
fertilizers alone and 3 split applications of nitrogen increased
grain yield of maize over 2 split applications of nitrogen.
Key word: Maize,
Manure, Split application.
