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Impact Of Nitrogen & Phosphorous Application On Diff. Barley Genotypes
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114 b
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The experiment comprising of five fertilizer levels (No+Po, N40+P15 (Two splits), N60+P30 (Two splits), N80+P45 (Two splits), N80+P45 (Three splits) (Phosphorus was applied as basal doses) and four genotypes (BH393, BH331, BA338 and BH646,) was conducted at Plant Breeding Research Farm, CCS Haryana Agricultural University, Hisar during rabi seasons of 2004-05 and 2005-06. The treatments were replicated thrice in split plot design keeping fertilizer levels as main plot treatments and genotypes as sub plot treatments. Number of effective tillers m-2, number of grains per ear, 1000-grain weight, grain yield per meter row length and straw yield per meter row length were significantly improved with the increase in fertility levels and the maximum were recorded with 80kg N ha-1 (1/3N as basal + 1/3 N at Ist irrigation + 1/3 N at IInd irrigation) + 45Kg P205 ha-1 level of fertility. The grain and straw yield increased significantly with each successive increase in fertility levels and the maximum increase in grain yield was obtained with 80 Kg N ha-1 (1/3 N as basal + 1/3 N at Ist irrigation + 1/3 N at IInd irrigation) + 45Kg P205 ha-1 fertility levels over control.
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