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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(6): 193-199
DOI: https://doi.org/10.20546/ijcmas.2017.606.023


Effect of Different Sources and Levels of Potassium on Yield, Nutrient Requirement and Nutrient Use Efficiency by Maize Crop (Zea mays L.) in Low K Soils of Eastern Dry Zone of Karnataka, India
Sidharam Patil* and P.K. Basavaraja
Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, GKVK, Bangalore 560065, India
*Corresponding author
Abstract:

Two field experiments were conducted at Saslu and Sothenhalli village of Dodballapur taluk, Bangalore rural district during Kharif 2014 and 2015 in low K soils with different sources and levels of K application. There was an increase in grain and stover yield with increase in levels of K application and significantly higher grain (77.45 q ha-1) and stover yield (116.38 q ha-1) was recorded in 125% K through potassium schoenite applied treatment. Similarly, higher agronomic efficiency of N (26.42 kg kg-1), P (52.84 kg kg-1) and K (79.25 kg kg-1), higher potassium recovery efficiency (172.94%) and higher nutrient requirement of N (1.63 kg q-1), P (0.38 kg q-1) and K (0.54 kg q-1) were recorded in 125% of K applied through potassium schoenite.


Keywords: Maize, Potassium schoenite, Potassium recovery efficiency, Agronomic efficiency
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How to cite this article:

 
Sidharam Patil and Basavaraja P.K. 2017. Effect of Different Sources and Levels of Potassium on Yield, Nutrient Requirement and Nutrient Use Efficiency by Maize Crop (Zea mays L.) in Low K Soils of Eastern Dry Zone of Karnataka, IndiaInt.J.Curr.Microbiol.App.Sci. 6(6): 193-199. doi: https://doi.org/10.20546/ijcmas.2017.606.023