Plants differ in their ability to take up potassium depending on several factors, and I would like to ask on the factors that affect the availability of potassium in soil?
Dear Mohamed Awad Dadamouny, Here are few articles may be of your intrest. regards
http://www.ipni.net/publication/bettercrops.nsf/0/68FBD2B2A6A305BF852579800082035B/$FILE/Better%20Crops%201998-3%20p14.pdf
http://link.springer.com/article/10.1007/BF02375075
https://www.soils.org/publications/sssaj/pdfs/14/C/SS01400C0113
My Dear This link may also be useful in Potassium Availability research.
Thanks
http://documents.crinet.com/AgSource-Cooperative-Services/Locations/F-04228-12---Factors-of-K-FS-Lincoln.pdf
I can only answer this question by attaching a pdf. This paper may help in getting the most important point on K availability.
The soil factors affecting K availability are soil texture, structure, organic matter content,
cation exchange capacity and the clay types. Of course moisture content at any time will also play a role. The pH and soil EC will also be very important.
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