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Rupinder Kaur Meenakshi Goyal U. S. Tiwana

Abstract

Field experiment was conducted during kharif season of 2013 in randomized block design using three nitrogen doses (50, 75 and 100 kgN/ha) with three replications for Napier Bajra hybrid. Three nitrogen fertilizers, potassium nitrate (KNO3), urea [CO(NH2)2] and ammonium sulphate [(NH4)2SO4] were used in divided doses. The crop was harvested four times in different seasons. Growth attributes viz. plant height (72.6cm), number of tillers per plant (20.1) and leaf length (91.2) found highest at 100 kgN/ha doses and maximum values were recorded in monsoon season. Green fodder yield (321.0 q/ha) and dry fodder yield (79.6 q/ha) were recorded highest with KNO3 fertilization and found maximum in monsoon season. Among all the harvest seasons, crude protein yield (19.1 q/ha) was observed maximum in summer season. Quality attributes viz. ether extract (2.6%), ash content (12.9%) and in vitro dry matter digestibility (62.6%) were observed highest in summer season. Crude fibre, neutral detergent fibre and acid detergent fibre decreased with increased level of nitrogen doses and observed maximum in monsoon season.

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Keywords

Growth attributes, Harvest seasons, Napier Bajra hybrid, Nitrogen fertilization, Yield

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Kaur, R., Goyal, M., & Tiwana, U. S. (2017). Yield and quality attributes with seasonal variation in Napier Bajra hybrid (Pennisetum purpureum × Pennisetum glaucum) under different nitrogen environments. Journal of Applied and Natural Science, 9(3), 1350-1357. https://doi.org/10.31018/jans.v9i3.1365
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