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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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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

Int.J.Curr.Microbiol.App.Sci.2017.6(8): 980-986
DOI: https://doi.org/10.20546/ijcmas.2017.608.120


Response of Sunflower to Different N/P Fertilizer Ratios and Levels of Nitrogen and Phosphorus
G. Ravishankar* and L.H. Malligawad
Department of Agronomy, University of Agricultural Sciences, Dharwad, Karnataka, India
*Corresponding author
Abstract:

A field experiment was conducted to study the effect of different ratios and levels of nitrogen and phosphorus fertilizer on the productivity of hybrid sunflower (cv. RSFH 130) on medium deep black soil under protective irrigation at Agricultural Research Station, Hagari, Ballari, University of Agricultural Sciences, Raichur, Karnataka. Treatments consisted of different N/P fertilizer ratios (0.80, 1.00, 1.20, 1.30 and 1.40) with different levels of N (60 to 126 kg N ha-1) and P (60 to 90 kg P2O5 ha-1) in addition to K fertilization at 60 kg K2O ha-1. Results revealed that N/P fertilizer ratio of 1.40 with application of nitrogen @ 126 kg ha-1 and phosphorus @ 90 kg ha-1 produced higher plant height, stem girth, total dry matter production, head diameter, seed yield per plant, thousand seed weight, seed yield, oil content, oil yield and economics of sunflower when compared to other N/P fertilizer ratios with different nitrogen and phosphorus levels.


Keywords: Sunflower, N/P fertilizer ratios, Growth, Seed yield, Oil yield, Quality and Economics.
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How to cite this article:

Ravishankar, G. and Malligawad, L.H. 2017. Response of Sunflower to Different N/P Fertilizer Ratios and Levels of Nitrogen and PhosphorusInt.J.Curr.Microbiol.App.Sci. 6(8): 980-986. doi: https://doi.org/10.20546/ijcmas.2017.608.120