calc_potassium_availability {OBIC} | R Documentation |
Calculate the K availability
Description
This function calculates the K availability of a soil.
Usage
calc_potassium_availability(
B_LU_BRP,
B_SOILTYPE_AGR,
A_SOM_LOI,
A_CLAY_MI,
A_PH_CC,
A_CEC_CO,
A_K_CO_PO,
A_K_CC
)
Arguments
B_LU_BRP |
(numeric) The crop code from the BRP |
B_SOILTYPE_AGR |
(character) The agricultural type of soil |
A_SOM_LOI |
(numeric) The organic matter content of the soil (%) |
A_CLAY_MI |
(numeric) The clay content of the soil (%) |
A_PH_CC |
(numeric) The acidity of the soil, measured in 0.01M CaCl2 (-) |
A_CEC_CO |
(numeric) The cation exchange capacity of the soil (mmol+ / kg), analyzed via Cobalt-hexamine extraction |
A_K_CO_PO |
(numeric) The occupation of the CEC with potassium (%) |
A_K_CC |
(numeric) The plant available potassium, extracted with 0.01M CaCl2 (mg / kg), |
Value
The capacity of the soil to supply and buffer potassium. A numeric value.
Examples
calc_potassium_availability(B_LU_BRP = 265, B_SOILTYPE_AGR = 'dekzand',
A_SOM_LOI = 4, A_CLAY_MI = 11,A_PH_CC = 5.4, A_CEC_CO = 125,
A_K_CO_PO = 8.5, A_K_CC = 145)
calc_potassium_availability(265, 'dekzand',4, 11,5.4, 125,8.5, 145)
calc_potassium_availability(c(265,1019), rep('dekzand',2),c(4,6), c(11,14),
c(5.4,5.6), c(125,145),c(8.5,3.5), c(145,180))
[Package OBIC version 3.0.2 Index]