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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(11): 570-576
DOI: https://doi.org/10.20546/ijcmas.2017.611.069


Growth and Yield of Soybean as Influenced by Different Ratios and Levels of Nitrogen and Phosphorus under Rainfed Situations
Satyabrata Mangaraj1*, L.H. Malligawad2 and R.K. Paikaray1
1College of Agriculture, OUAT, Bhubaneswar, Odisha, India
2College of Agriculture, UAS, Dharwad, Karnataka, India
*Corresponding author
Abstract:

A field experiment was carried out during kharif 2015 with thirteen ratios of nitrogen (N) and phosphorus (P2O5) fertilizers with constant potassium level (25 kg K2O ha-1) on soybean cultivar DSb 21 at MARS, UAS, Dharwad. The seed yield increased due to increasing N/P ratios up to 0.78. The treatment receiving N/P fertilizer ratio of 0.70 (basal application of 18 kg N, 46 kg P2O5, 25 kg K2O ha-1 + foliar application of nitrogen @ 7 kg N ha-1 at initiation of flowering and foliar application of nitrogen @ 7 kg N ha-1 at 15 days after first foliar spray) recorded significantly higher seed yield (3217 kg ha-1), number of filled pods plant-1 (44.73), total number of pods plant-1 (47.57), 100 seed weight (15.40 g) and seed weight plant-1 (18.31 g). This treatment also recorded significantly higher leaf area plant-1 (12.62 dm2), leaf area index (4.21) and total dry matter production (34.15 g). The treatment receiving N/P fertilizer ratio of 0.78 (basal application of 40 kg N, 69 kg P2O5, 25 kg K2O ha-1 + foliar application of nitrogen @ 7 kg N ha-1 through urea at initiation of flowering and foliar application of nitrogen @ 7 kg N ha-1 at 15 days after first spray) was on par with the N/P fertilizer ratio of 0.70.


Keywords: Rainfed, Foliar application, Seed yield, Fertilizer ratio.
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How to cite this article:

Satyabrata Mangaraj, L.H. Malligawad and Paikaray, R.K. 2017. Growth and Yield of Soybean as Influenced by Different Ratios and Levels of Nitrogen and Phosphorus under Rainfed Situations.Int.J.Curr.Microbiol.App.Sci. 6(11): 570-576. doi: https://doi.org/10.20546/ijcmas.2017.611.069