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QI  

Quantity-Intensity Relationship of Soil Potassium
View on CRAN: Click here


Download and install QI package within the R console
Install from CRAN:
install.packages("QI")

Install from Github:
library("remotes")
install_github("cran/QI")

Install by package version:
library("remotes")
install_version("QI", "0.1.0")



Attach the package and use:
library("QI")
Maintained by
Bappa Das
[Scholar Profile | Author Map]
First Published: 2022-03-09
Latest Update: 2022-03-09
Description:
The quantity-intensity (Q/I) relationships, first introduced by Beckett (1964), can be employed to assess the K supplying capacity of different soils based on solid-solution exchange equilibria. Such relationships describe the changes in K+ concentration in the soil solution (or the intensity factor) in relation to the corresponding changes in K+ at exchange sites of the soil (or the capacity or quantity factor). Activity ratio of K to Ca or Ca+Mg is generally used as the variable denoting the intensity, whereas, change in exchangeable K is used to denote the quantity factor.
How to cite:
Bappa Das (2022). QI: Quantity-Intensity Relationship of Soil Potassium. R package version 0.1.0, https://cran.r-project.org/web/packages/QI. Accessed 10 Apr. 2025.
Previous versions and publish date:
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Complete documentation for QI
Functions, R codes and Examples using the QI R package
Some associated functions: QIPoly . QIlin . df . 
Some associated R codes: QI_F.R .  Full QI package functions and examples
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