Effect of Integrated Nutrient Management on Growth and Bulb Parameters of Tuberose (Polianthes tuberosa L.) under Foothill Conditions of Nagaland

Abstract

The present investigation was conducted during the year 2022-2023 and 2023-2024 in the Experimental farm at Department of Horticulture, SAS, Nagaland University, Medziphema Campus, Nagaland. The trial was laid out in randomized block design consisting of twelve treatments with three replications. The treatments include a combination of recommended doses of fertilizers along with the organic manures such as the farm yard manure, vermicompost, poultry manure, forest soil, and humic acid. Among the various treatments, the plants receiving a combination of 75 % RDF and Vermicompost @ 5 t ha-1 (T4) was found to be the best in all the vegetative and bulb parameters, viz., minimum days to sprouting (9.23), maximum number of leaves per plant (23.78), length of leaves (47.96 cm), plant height (56. 94 cm), number of side shoot per plant (6.05), number of bulbs per plant (2.95), number of bulblets per plant (18.20), bulb diameter (3.82 cm), bulb weight (81.52 g), bulblet weight (122.85g) and bulb yield (26.73 t/ ha). It is concluded and recommended that 75 % recommended dose of fertilizer along with @ 5 t ha-1 vermicompost should be applied for significant results of vegetative growth and bulb yield in tuberose.