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Pak. J. Bot., 42(5): 3633-3638, 2010. |
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Updated: 06-12-10 | ||||
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EFFECT OF INTEGRATED USE OF NITROGEN ON YIELD AND N UPTAKE OF MAIZE CROP
Azam Shah1, Mohammad Shafi*2, Jehan Bakht3, wisal Mohammad1, mahmood shah1, M.T. JAN2, M. J. KHAN4, zahir shah4 and raziuddin5
Abstract: The present field studies investigated the effect of the integrated use of mineral N and organic N sources (Farm yard manure, Poultry manure and Filter cake) on maize crop. Field experiment was carried out on silty clay loam soil at NIFA Tarnab Peshawar Pakistan during 2005-06. There were 17 treatments with four replications using maize variety Azam as a test material in RCB design. Statistical analysis of the data revealed that integrated application of organic N sources (farmyard manure, poultry manure, filter cake) and mineral N source (urea) resulted an upward trend in the yield of maize crop. Maximum biomass, (9554 kgha-1) and stover yield (8136 kgha-1) of maize were obtained from those treatments where 100% (FYM) was used. Maximum grain yield (1838 kgha-1 ) was recorded from treatment where 25% farmyard manure (FYM) and 75% mineral nitrogen source (urea) were used. Agronomic efficiency and nitrogen use efficiency was also found higher in the treatments where 25% N from farmyard manure (FYM) and 75% N from mineral N source (urea) was applied. It was concluded that combination of 75% mineral N source and 25% organic N sources (urea) are the best combination for sustainable yield.
1Nuclear Institute for Food and Agriculture Peshawar, Pakistan 2Department of Agronomy, 3Institute of Biotechnology and Genetic Engineering, 4Department of Soil and Environmental Sciences, 5Department of Plant Breeding & Genetics, KPK Agricultural University Peshawar, Pakistan *Corresponding author E-mail: mshafi.aup@gmail.com |
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