Abstract
A field experiment was conducted to determine the growth, yield and quality performance of spring maize treated
with different rate and source of organic materials i.e. poultry manure (PM) and farmyard manure (FYM) in 2006
under agro-ecological conditions of Faisalabad. The treatments included were 10, 15, 20, 25 and 30 t ha-1 FYM
and 4, 6, 8, 10 and 12 t ha-1 PM. The results indicated that grain yield of 5.6 t ha-1 was recorded in plots added
with 12 t ha-1 PM and it was statistically same as obtained with 10 t ha-1 PM. The increase in yield was attributed
to increase in cob length, cob diameter and number of grains per cob. Grain protein percentage (8.15) was also
maximum where 12 t ha-1 PM was applied. Effects of different treatments on growth and yield parameters of
maize are discussed.
