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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 269-277
DOI: https://doi.org/10.20546/ijcmas.2019.803.034


Productivity and Profitability of Direct Seeded Early Ahu Rice under Medium Land Situation
Dibyarishi Bhattacharjya2, Krishna Bharadwaj1, Abhijit Sarma1*, Kakali Konwar1, Kushal Sarmah3, J.C. Das and Uddipana Shandilya4
1Department of Agronomy, Assam Agricultural University, Jorhat-785013, Assam, India
2Krishi Vigyan Kendra, Napam, Tezpur -784028, Assam, India
3Department of Agrometeorology, Assam Agricultural University, Jorhat-785013, Assam, India
4Department of Entomology, Assam Agricultural University, Jorhat-785013, Assam, India
*Corresponding author
Abstract:

A field experiment was carried out at the Instructional-cum-Research (ICR) Farm, Assam Agricultural University, Jorhat during 2017 to develop the irrigation schedule of direct seeded early ahu rice under medium land situation and to find out the suitable nutrient management practices for direct seeded early ahu rice to suit the variability in rainfall pattern. The treatments consisted of four irrigation regimes viz. irrigation at 80% available water till onset of pre-monsoon rain (I1), irrigation at 70% available water till onset of pre-monsoon rain (I2), irrigation at 60% available water till onset of pre-monsoon rain (I3) and rainfed (I4) as main plot and three nutrient management treatments viz. full P as basal + ½ N and ½ K at 20 days after sowing (DAS) + ½ N and ½ K at 40 DAS (N1), full P as basal, 1/3 N and 1/3 K as basal + 1/3 N and 1/3 K at 20 DAS + 1/3 N and 1/3 K at 40 DAS (N2) and full P as basal, ½ N and ½ K as basal + ¼ N and ¼ K at 20 DAS + ¼ N and ¼ K at 40 DAS (N3) as sub plot and control (transplanted early ahu rice with recommended water and fertilizer management practices). Experimental findings revealed that irrigation at 80% available water till onset of pre monsoon rain (I1) recorded the highest values for all the morphological and physiological parameters along with the yield and yield attributing characters of the crop. The highest grain yield (39.83 q/ha) and straw yield (90.96 q/ha) were recorded at irrigation at 80% available water (I1). Among the nutrient management practices, the highest values of all the morphological and physiological parameters along with the yield and yield attributing characters of the crop were recorded under full P as basal + ½ N and ½ K at 20 DAS + ½ N and ½ K at 40 DAS (N1). This treatment also recorded the highest grain yield (34.16 q/ha) and straw yield (83.45 q/ha). The experiment did not show any significant difference between direct seeded crop and transplanted crop with respect to growth parameters, yield attributes and yield. Direct seeded crop recorded the higher net return and benefit-cost ratio over the transplanted rice.


Keywords: Direct seeded rice, Eary ahu, Irrigation, Nutrient management
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How to cite this article:

Dibyarishi Bhattacharjya, Krishna Bharadwaj, Abhijit Sarma, Kakali Konwar, Kushal Sarmah, J.C. Das and Uddipana Shandilya. 2019. Productivity and Profitability of Direct Seeded Early Ahu Rice under Medium Land Situation.Int.J.Curr.Microbiol.App.Sci. 8(3): 269-277. doi: https://doi.org/10.20546/ijcmas.2019.803.034