Standardization of NPK dose for growth, floral, bulb and economic parameters on Phule Rajani tuberose

Abstract

An investigation was carried out during 2013 to 2015 to standardized NPK dose on growth, floral, bulb and economic parameters in tuberose cv. Phule Rajani an application of treatment T8- 250: 200: 200 kg ha-1 NPK through inorganic fertilizers were showed significant influence on plant height (72.10 cm), spike length (66.07 cm), floret spike-1 (39.43), floret diameter (3.49 cm), flower duration (32.63 days), durability of spike in field (11.00 days), spike plant-1 (4.73), spike weight (75.12 g), bulbs plant-1 (16.93), gross return (Rs. 914450 ha-1), net return (Rs. 678646 ha-1) and benefit cost ratio (3.72) with highest trends in this treatment which was found better over the recommended dose of NPK treatment T2- 300: 150: 150 kg ha-1 respectively. Highest nitrogen content (2.56%), phosphorus content (0.78 %) and potassium content (3.62 %) were recorded in bulb stage followed by spike and minimum were in leaf stage in treatment T16- 350: 250:250 kg ha-1 NPK respectively.