National Academy of Agricultural Sciences (NAAS)
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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 |
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.
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