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A field experiment was conducted to study the effect of different ratios and levels of nitrogen and phosphorus fertilizer on the productivity of hybrid sunflower (cv. RSFH 130) on medium deep black soil under protective irrigation at Agricultural Research Station, Hagari, Ballari, University of Agricultural Sciences, Raichur, Karnataka. Treatments consisted of different N/P fertilizer ratios (0.80, 1.00, 1.20, 1.30 and 1.40) with different levels of N (60 to 126 kg N ha -1 ) and P (60 to 90 kgdoi:10.20546/ijcmas.2017.608.120 fatcat:en4k4jk6g5eyddusoyciegrooe