check_soil_table: Performs sanity checks on soil table
In mbask/fertplan: Compute Components Of NPK Fertilization Plans

Description Usage Arguments Details Value Examples

View source: R/checks.R

The computation of nutrient fertilization plans requires a few soil analyses be performed. Each nutrient fertilization plan requires specific analyses, the functions checks whether these analyses results are present in soil table for each specific nutrient.

1	check_soil_table(soil_dt, nutrient)

`soil_dt`	A table where soil physical and chemical features needed are given or `NULL`
`nutrient`	One of "nitrogen", "phosphorus", "potassium"

The data object are passed to appropriate fertplan functions by demand_nutrient(), further information on soil features, and their unit of measure can be found in help pages and vignettes of the fertplan package. Templates for soil tables:

Template for nitrogen nutrient table:

N_pc, Percentage of nitrogen in soil, numeric
CNR, Soil carbon / nitrogen ratio, numeric
SOM_pc, Soil Organic Matter percentage, numeric
Clay_pc, Soil clay content, numeric

Template for phosphorus nutrient table:

P_ppm, Phosphorus in soil in ppm (mg/kg), numeric
Limestone_pc, Calcium in soil in percentage, numeric

templates for potassium nutrient table:

K_ppm, Potassium in soil in ppm (mg/kg), numeric
Clay_pc, Soil clay content, numeric

Note that the appropriate classes of soil features for each specific nutrient may be looked up by passing NULL as soil_dt argument, like in check_soil_table(NULL, "potassium").

A subset of the soil table featuring only the specific analyses results for the nutrient given or, if soil_dt is NULL a character vector of classes of the relevant soil features for each specific nutrient.