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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.2020.9(5): 985-992
DOI: https://doi.org/10.20546/ijcmas.2020.905.108


Physical and Economic Levels of Nitrogen for Aerobic Rice under Different Establishment Methods
K. Ramya* and R. Poonguzhalan
Department of Agronomy, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal. 609 603, India
*Corresponding author
Abstract:

A field experiment was conducted at Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal to find out the physical and economic optimum doses of nitrogen for aerobic rice under different establishment methods in Karaikal during Kharif (June to September) 2018. The treatments comprised combination of three methods of establishment (broadcasting, line sowing and transplanting) and six levels of nitrogen (0, 100, 125, 150, 175 and 200 kg ha-1). The experiment was conducted in a split-plot design with three replications, assigning establishment methods to the main plots and the nitrogen levels to sub-plots. A short duration rice cv. ADT (R) 45 was used in the study. Among the different methods of establishment, the grain yield, straw yield, gross return, net return and B:C ratio were significantly higher in transplanting than line sowing and broadcasting. Among the different nitrogen levels, the maximum grain yield, gross return, net return and B:C ratio were recorded with the application of 150 kg N ha-1. The physical and economic optimum levels of nitrogen in broadcasting (157.7 and 145.4 kg ha-1, respectively), line sowing (187.2 and 170.2 kg ha-1, respectively) and transplanting (157.6 and 152.0 kg ha-1, respectively) varied. Transplanting rice seedlings under aerobic condition along with the application of 150 kg N ha-1 recorded the highest grain yield (4272 kg ha-1), gross return (Rs. 69821 ha-1), net return (Rs.24434 ha-1) and B:C ratio (1.54).


Keywords: Aerobic rice, transplanting, line sowing, broadcasting, nitrogen level, physical and economic optimum, economics
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How to cite this article:

Ramya. K and Poonguzhalan. R. 2020. Physical and Economic Levels of Nitrogen for Aerobic Rice under Different Establishment Methods.Int.J.Curr.Microbiol.App.Sci. 9(5): 985-992. doi: https://doi.org/10.20546/ijcmas.2020.905.108