df {QI}

Example Data Frame for Quantity-intensity relationship

Description

User is advised to prepare the data as suggested in the example to derive Quantity-Intensity (Q/I) relationship parameters of soil potassium (K) using linear and polynomial (second order) regression

Usage

df

Format

Data frame with Solution: soil ratio in the first column, Initial K concentration (mg/L) in the second column, Final or equilibrium K concentration (mg/L) in the third column, Final or equilibrium 'Ca+Mg' concentration (mol/L) in the fourth column. Write the following notations on the spreadsheet:

Solution_to_Soil_Ratio - for Solution: soil ratio

Initial_K - for Initial K concentration (mg/L)

Final_K - for Final or equilibrium K concentration (mg/L)

Final_Ca_and_Mg - for Final or equilibrium 'Ca+Mg' concentration (mol/L)