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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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Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 443-452
DOI: https://doi.org/10.20546/ijcmas.2017.611.052


Effect of Different Rates and Sources of Potassium on Growth, Yield and Quality of Potato (Solanum tuberosum L.)
G.L. Mohan, S. Channakeshava*, N.B. Prakash, S.T. Bhairappanavar and B. Tambat
University of Agricultural Sciences, GKVK, Bengaluru-560065, Karnataka, India
*Corresponding author
Abstract:

A field experiment was conducted during kharif season of 2016 at KVK Kandali, UAS, Bengaluru to study the effect of different rates and sources of potassium on growth, yield and quality of potato. Results revealed that highest growth parameters like plant height (49.0), number of branches (2.83), and total dry matter production (6366.04kg/ha) recorded with application of 75:75:175 kg/ha NPK with K as Bio K + Sulphur (S). Significantly lower growth parameters like plant height (31.67), number of branches (1.99), and total dry matter production (2063.02 kg/ha) recorded in control. Number of tuber and tuber weight per plant were significantly higher due to application of 75:75:175 kg/ha NPK with K as Bio K + S (4.80 and 560.67) and was on par with 75:75:175 kg/ha NPK with K as SOP + Sulphur (4.6 and 545.67). Maximum tuber yield was recorded with 75:75:175 kg/ha N P K with K as Bio-K+ S (31.15t/ha) and significantly lower tuber yield recorded in absolute control (11.0). Significantly highest protein (8.50%) and starch (79.27%) content were recorded in treatment 75:75:175 kg/ha NPK with K as Bio K + S. Total N, P, K content in haulm (1.35, 0.27 and 2.87) and tuber (1.34,0.43 and 1.75) was significantly higher due to application of 75:75:175 kg/ha NPK with K as Bio-K + S and was on par with application of 75:75:175 kg/ha NPK with K as SOP+S. As regard to micronutrients, significantly higher Fe, Mn, Zn Cu and B content in haulm (277.63, 152.41, 44.54, 32.85 and 9.82) and tuber (147.06, 53.6, 12.37, 26.65 and 16.53) was recorded due to application of 75:75:175 kg/ha NPK with K as Bio K + S. B:C ratio of 4.74 was recorded with the application of (75:75:175 kg/ha NPK) K as Bio K + Sulphur is found to be more profitable compared to other treatments in potato cultivation.


Keywords: Rates and sources of potassium, Growth, Yield and quality.
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How to cite this article:

Mohan, G.L., S. Channakeshava, N.B. Prakash, S.T. Bhairappanavar and Tambat, B. 2017. Effect of Different Rates and Sources of Potassium on Growth, Yield and Quality of Potato (Solanum tuberosum L.).Int.J.Curr.Microbiol.App.Sci. 6(11): 443-452. doi: https://doi.org/10.20546/ijcmas.2017.611.052