Article publication date: 2014-03-01
Vol. 32 No. 1 (yearly), pp. 56-61.
Tasseling; Silking; Maturity; Nitrogen sources; Hybrid maize; Grain yield.
Two year field experiment was conducted to check the influence of different Nitrogen sources on the tasseling, silking, maturity and grain yield of hybrid maize (Zea mays L.) at the Agronomic Research Area, University of Agriculture Faisalabad, Pakistan, during the year 2008-09. Treatments included two hybrids: (H1) (Pioneer-30Y87) and (H2) (Pioneer-31R88) with six Nitrogen sources each, which included at the rate of (S0): control (0) kg Nitrogen ha-1, (S1) : chemical source (urea) 250 kg Nitrogen ha-1, (S2): poultry manure (PM) 9.6 t ha-1, (S3): farm yard manure (FYM) 17.8 t ha-1 , (S4): press mud of sugarcane (PMS) 8.5 t ha-1 and (S5): compost (C) 10.0 t ha-1. Finding concluded that effect of Nitrogen sources on both maize hybrid was found to be non significant for number of days to tasseling and number of days to silking during 2008 while number of days to maturity and grain yield was significant. In 2009 number of days for tasseling was found significant and number of days to silking, maturity and grain yield was not significant. Significant Nitrogen sources influenced were observed for tasseling, silking, maturity and grain yield during both years 2008-09. Maximum number of days was recorded in chemical source (urea) 250 kg Nitrogen ha-1 for tasseling, silking, maturity and grain yield in 2009 as compared to other Nitrogen sources and minimum number of days to tasseling, silking, maturity and grain yield was found in control (0) kg Nitrogen ha-1 .