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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (175) Last page : (183)
Article doi: : http://dx.doi.org/10.18782/2320-5072

Potassium Forms in Relation with K Uptake Studies in Soils of Different Cropping Systems in Kurnool District

I. Rajeevana* and P. Kavitha

Department of Soil Science and Agricultural Chemistry, Agricultural College, Mahanandi, Kurnool, A.P.
*Corresponding Author E-mail: rajeevana9119@gmail.com
Received: 27.06.2017  |  Revised: 24.07.2017   |  Accepted: 3.08.2017  

 

 ABSTRACT

An investigation was carried out during the year 2015 -16 to study and determine the  role  of  potassium forms  in  relation with K uptake studies in soils of  different cropping systems in Kurnool district. Existence of different forms of potassium in the investigated soils have the following order :fixed K > non-exchangeable K >available K> exchangeable K >water soluble K. All forms of potassium were highest in maize-maize cropping system and lowest in groundnut-groundnut cropping system. The plant parameters i.e dry matter, K content and K uptake of maize crop were highest in Srinagaram village of maize-maize cropping system and lowest in Balapalapalli village of groundnut –groundnut cropping system. The maximum and positive correlation of plant parameters was found with non-exchangeable K .

Key words: Potassium forms, Maize, Dry matter, K content and K uptake.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Rajeevana, I. and Kavitha, P., Potassium Forms in Relation with K Uptake Studies in Soils of Different Cropping Systems in Kurnool District, Int. J. Pure App. Biosci.6(5): 175-183 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5072