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A field experiment conducted at Al-Ahamer district, Al-Najaf during summer season of 2013on clay loam soil. The aim was to investigate the effect of the addition of suggested organic-inorganic mixed fertilizer on growth and yield of rice (Oryza sativa L.),cv.Yasamin. Experiment was done as Completely Randomized Block Design with three replicates. Results showed that the addition of organic-inorganic mixed fertilizers (Perl humus +NPK, Open green+ Diammonium phosphate (DAP) +Foliar application, K2SO4), significantly increased plant height (26%), panicle number per square meter (97%), biological yield (44%), grain yield (26%), panicle length (14%), grain number per panicle (06%), 1000 grain weight (52%) and harvest index (55%), in comparison with the Conventional farming using chemical fertilizers (Diammonium phosphate, DAP+ Urea+ nitrogen–phosphorus (NP)).

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Abstarct

A field experiment carried out at Rice Research Station (RRS), Al-Najaf during summer season ofJuly- November 2013 on clay loam soil. The aim was to identify the effect of the addition of organicand inorganic and mixed fertilizers on the yield and yield components of rice (Oryza sativa L.), C.VYasamin. Experiment was done as Completely Randomized Block Design (RCBD) with threereplicates. There were seven treatments in total, T1 (1/2 recommended fertilizer dose of rice + NPK),T2 (1/2 recommended fertilizer dose of rice + Perl humus), T3 (1/2 recommended fertilizer dose ofrice + NPK + Perl humus), T4 (NPK), T5 (Perl humus), T6 (NPK + Perl humus) and T7(Recommended fertilizer dose of rice). Results showed that the addition of T3 (1/2 recommendedfertilizer dose of rice + NPK + Perl humus), significantly increased growth parameters (plant height,tiller number per square meter), grain yield and yield components (panicle length, grain number perpanicle, and 1000 grain weight). Also T3 recorded maximum biological yield after T2 treatment.

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