Author(s):

Sheena Nain, BS Beniwal, RPS Dalal and Shiwani

Abstract: The present entitled “effect of nitrogen and phosphorus on flowering and spike yield of tuberose (<em>Polianthes tuberose </em>L.)” cv. Prajwal was carried out at Experimental Farm of the Department of Horticulture, CCS Haryana Agricultural University, Hisar during 2016-17 and 2017-18 to found out the optimum dose of nitrogen and phosphorus for flowering and spike yield of tuberose. The nitrogen (0, 10, 15, &amp; 20 g/m²) and phosphorus levels (0, 5 and 10 g/m²) were used in randomized block design with three replications. Results found that the maximum days taken to spike initiation, days taken to flowering and duration of flowering, number of spike per clump and spike weight during both the years were observed in treatments where nitrogen at 20 g/m²and phosphorus at 10 g/m²was applied. Therefore, based on the study for better flowering and spike yield of tuberose plants nitrogen at 20 g/m²and phosphorus at 10 g/m²should be applied

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