National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present investigation was carried out to find the effect of frequency and dose of nitrogen fertigation on growth and yield of potato and to calculate the economics of different treatments investigated. The experiment comprising of four levels of nitrogen, i.e., 90(N1), 120(N2), 150(N3) and 180(N4) kg/ha and three fertigation frequencies, i.e., every 3rd day (F1), every 6th day (F2) and every 9th day (F3) was laid out in a Randomized Block Design with three replication. The total tuber yield (296.50 q/ha), biological yield (402.11 q/ha), marketable yield (270.28 q/ha) and harvest index (67.58%) were significantly higher when fertigation applied at every 3rd day (F1). Nitrogen levels exhibited significant difference for growth and yield. The maximum value for total tuber yield (292.33 q/ha), biological yield (404.17q/ha), marketable yield (267.66 q/ha) and harvest index (67.40%) were maximum with the application of nitrogen @120 kg/ha (N2). Interaction effect of fertigation frequency and nitrogen levels showed remarkable variation. The maximum total tuber yield (307.78 q/ha), biological yield (428.17 q/ha) and marketable yield (280.79 q/ha). Significantly higher marketable tuber yield (280.79 q/ha), maximum net return (Rs. 1,17,488/ha) and benefit cost ratio (1.75) was found highest with F1N2 treatment combination.
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