Effects of nitrogen sources and application time on yield attributes, yield

A field experiment was carried out under rain-fed conditions at Imla, Gambella Agricultural Research Institute in 2008 and 2009 main cropping seasons in order to compare the effects of N sources [ammonium nitrate (NH4NO3), ammonium sulfate ((NH4)2SO4) and urea (CO(NH2)2)] and their time of application (u00bd at sowing u00bd at tillering; u2153 at sowing u2153 at tillering u2153 at panicle initiation; u00bd at sowing u00bd at panicle initiation, and u00bd at tillering u00bd at panicle initiation) on growth, yield attributes and yield of rice ( Oryza sativa L.) variety NERICA-3 (O. sativa x O. glaberrima),

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Effects of nitrogen sources and application time on yield attributes, yield

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