International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 10, Issue:1, January, 2021

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2021.10(1): 2196-2202

Effect of Levels of Nitrogen and Biofertilizers on Growth and Yield of Sunflower (Helianthus annuus L.)
Lakshman Jonnagorla*, Vikram Singh, Dhananjay Tiwari,Shaik Mahaboob Ali and Balla Hari Krishna
Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India
*Corresponding author

A field Experiment was conducted during kharif 2019 at Central Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P.). The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.2), low in organic carbon (0.58 %), available N (238 kg/ha), available P (32.10 kg/ha) and available K (189 kg/ha). The treatment consists of 3 levels of Nitrogen (60 kg/ha), (70 kg/ha) and (80 kg/ha) and 3 application methods of Biofertilizers as seed treatment (Azospirillum), (Azotobacter) and (Azospirillum + Azotobacter), whose effect was observed on sunflower. There were 10 treatments each replicated thrice. The experiment was laid out in Randomized Block Design. The results showed that growth parameters viz. Plant height (106.26 cm) at 60 DAS, plant dry weight (26.67 g) at 60 DAS and Head diameter (9.19 cm) at 60DAS in (80 kg/ha Nitrogen + Azospirillum + Azotobacter). The Yield parameters viz. Number of seeds per capitulum (373.67), Number of unfilled seeds per capitulum (13.33), test weight (41.10 g), seed yield (1351.15 kg/ha), stover yield (2954.29 kg/ha), oil content (43.52%) Gross returns (76339₹/ha), Netreturns (49150₹/ha) and BC ratio (2.81) were recorded maximum with application of (80 kg/ha Nitrogen + Azospirillum + Azotobacter).

Keywords: Sunflower, Nitrogen, Biofertilizers, Growth, Yield, Economics

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How to cite this article:

Lakshman Jonnagorla, Vikram Singh, Dhananjay Tiwari, Shaik Mahaboob Ali and Balla Hari Krishna. 2021. Effect of Levels of Nitrogen and Biofertilizers on Growth and Yield of Sunflower (Helianthus annuus L.).Int.J.Curr.Microbiol.App.Sci. 10(1): 2196-2202. doi:
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