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 |
A field experiment was conducted at Punjab Agricultural University, Regional Research Station, Gurdaspur during two year crop cycles of 2013-14 and 2014-15 to find out the effect of date of planting, nitrogen application and planting geometries on the biomass yield and essential oil yield of palmarosa under sub-mountainous region of Punjab. The experiment was laid out in split-split plot design having three replications with three planting dates of palmarosa viz. April 25, May 10 &May 25, three nitrogen levels (50, 100 and 150 kg ha-1) in sub-plots and three planting geometries (60cm×30 cm, 60cm×45cm and 60 cm×60 cm) in sub-sub plots during two year crop cycles. The highest biomass yield and essential oil yield were recorded in April 25 which obtained higher biomass yield and essential oil yield than May 10 and May 25 at each harvest during both the years of crop cycles. Also, higher biomass yield and essential oil yield were recorded in crop raised with 150 kg N ha-1 which was statistically at par with 100 kg N ha-1 during each harvest of palmarosa. Among planting geometries, the highest biomass yield and essential oil yield were observed in planting geometries 60cm×30cm, which were significantly superior to 60cm×60cm and 60cm×45cm. Further, date of planting, nitrogen application and planting geometries did not cause significant variation in the oil concentration.
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