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EFFECT OF NITROGEN APPLICATION TIMINGS ON THE SEED YIELD OF BRASSICA CULTIVARS AND ASSOCIATED WEEDS
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نویسنده
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Tariq Muhammad ,Khan Zahid ,Arif Muhammad ,Ali Kawsar ,Waqas Muhammad ,Naveed Khalid ,Ali Murad ,Khan Murad Ali ,Shafi Bushra ,Adnan Muhammad
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منبع
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pakistan journal of weed science research - 2013 - دوره : 19 - شماره : 4 - صفحه:493 -502
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چکیده
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To study the effect of nitrogen application timings on brassica cultivars, an experiment was conducted at new developmental farm, university of agriculture, peshawar, during winter 2011-12. the experiment consisted of three brassica cultivars (abasin-95, dure-e- nifa and nifa raya), three nitrogen application timings (all at sowing, half each at sowing and flowering, one third each at sowing, flowering and pod formation). different cultivars showed significantly varied response for weed fresh and dry weight and seed yield. abasin-95 cultivar showed the strong weeds growth suppression and resulted in lower weeds fresh and dry weight of the weeds and also produced higher seed yield. nitrogen applied in two or three splits doses resulted in higher brassica seed yield. cutting declined weeds fresh and dry weight and seed yield of brassica.
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کلیدواژه
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Dual purpose Brassica ,nitrogen timing ,cultivars ,weeds and yield
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آدرس
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University of Agriculture, Dept of Agronomy, Pakistan, Federal Urdu University, Department of Pharmacy, Pakistan, University of Agriculture, Dept of Agronomy, Pakistan, University of Agriculture, Dept of Agronomy, Pakistan, Department of Agriculture Extension, Pakistan, University of Haripur, Department of Agricultural Sciences, Pakistan, University of Agriculture, Dept of Water Management, Pakistan, University of Agriculture, Dept of Animal Health, Pakistan, University of Agriculture, Dept of Rural Sociology, Pakistan, University of Agriculture, Dept of SES, Pakistan
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Authors
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