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Nitrogen use efficiency in wheat.

Author(s)
Fazli Qayyum Pakistan Agricultural Research Council (PARC), Islamabad, Pakistan
Afsary S. Qureshi Pakistan Agricultural Research Council (PARC), Islamabad, Pakistan
M. Ahmad Pakistan Agricultural Research Council (PARC), Islamabad, Pakistan
Abstract
A field experiment with three sources of nitrogenous fertilizers (NH4, No3, Urea) applied at 100 kg N/ha as broadcast, dibbled 10 cm deep and dibbled 10 cm deep mixed with poultry manure at 1 ton/ha between 25 cm part rows of wheat. Phosphorus at 90 kg P2O5 and potash at 60 kg K2O/ha were applied as a basal dose. Grain and straw yields were improved significantly (5% level) due to the method of fertilizer application. Ammonium sulphate applied mixed with poultry manure proved best combination over other sources and methods of application. total nitrogen uptake was maximum from ammonium sulphate followed by urea and nitrate forms where poultry manure was applied with these sources. To meet the crop requirements applied N was supplemented from soil N to a depth of 75 cm. It was concluded that wheat uptake of nitrogen was increased and used more efficiently with deep placement (dibbling) as compared to broadcasting.
Publication Details
Page(s) 428-431
DOI DOI not available
Published Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 37, Issue: 10, Year: 1994

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