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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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Original Research Articles

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(8): 577-587
DOI: https://doi.org/10.20546/ijcmas.2017.608.075


Effect of Different Sources and Levels of K on Maize (Zea mays L.) Yield, Nutrient Content and Uptake by Maize Crop in Low K Soils of Eastern Dry Zone of Karnataka, India
Sidharam Patil1*, P.K. Basavaraja1, V.R. Ramakrishna Parama1, T. Chikkaramappa1 and T. Sheshadri2
1Department of Soil Science and Agricultural Chemistry
2Department of Agronomy, University of Agricultural Sciences, GKVK, Bangalore 560065, Karnataka, India
*Corresponding author
Abstract:

The present investigation was conducted to study the effect of different sources and levels of K on maize (Zea mays L.) yield, nutrient content and uptake by maize crop. Two field experiments were conducted in farmer’s field at Sasalu and Sothenhalli villages of Dodaballapur taluk during kharif 2014 and 2015. Results indicated an increased grain and stover yield of maize with increase in levels of K2O application with significantly higher grain (77.45 q ha-1) and stover yield (116.38 q ha-1) recorded in 125% of K2O through potassium schoenite compared to Bio-K treatments. There was no significant difference in N, P, K content in grain and stover of maize crop due to different sources and levels of K. But, significantly higher total N uptake (187.54 kg ha-1), total P uptake (45.36 kg ha-1) and total K uptake (148.94 kg ha-1) were recorded when 125% of K2O was applied through potassium schoenite and there was a positive quadratic association between levels of K2O application and NPK uptake by maize crop.


Keywords: Maize, Potassium Schoenite, Quadratic association.
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How to cite this article:

Sidharam Patil, P.K. Basavaraja, V.R. Ramakrishna Parama, T. Chikkaramappa and Sheshadri, T. 2017. Effect of Different Sources and Levels of K on Maize (Zea mays L.) Yield, Nutrient Content and Uptake by Maize Crop in Low K Soils of Eastern Dry Zone of Karnataka.Int.J.Curr.Microbiol.App.Sci. 6(8): 577-587. doi: https://doi.org/10.20546/ijcmas.2017.608.075