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Calculate the Zinc availability index for agricultural soils (wrapper function)

osi_c_zinc.Rd

This function calculates the zinc availability for all European countries (if available).

Usage

osi_c_zinc(
  B_LU,
  A_CLAY_MI = NA_real_,
  A_SAND_MI = NA_real_,
  A_C_OF = NA_real_,
  A_SOM_LOI = NA_real_,
  A_PH_WA = NA_real_,
  A_PH_CC = NA_real_,
  A_ZN_RT = NA_real_,
  A_ZN_EDTA = NA_real_,
  A_ZN_CC = NA_real_,
  A_P_OL = NA_real_,
  B_COUNTRY,
  pwarning = FALSE
)

Arguments

B_LU

(numeric) The crop code

A_CLAY_MI

(numeric) The clay content (%)

A_SAND_MI

(numeric) The sand content (%)

A_C_OF

(numeric) The carbon content of the soil layer (g/ kg)

A_SOM_LOI

(numeric) The percentage organic matter in the soil (%)

A_PH_WA

(numeric) The acidity of the soil, measured in water (-)

A_PH_CC

(numeric) The acidity of the soil, measured in 0.01M CaCl2 (-)

A_ZN_RT

(numeric) The total Zn-content of the soil via XRF or Dumas (mg Zn/kg)

A_ZN_EDTA

(numeric) The plant available content of Zn in the soil (mg Zn per kg) extracted by EDTA

A_ZN_CC

(numeric) The plant available content of Zn in the soil (ug Zn per kg) extracted by 0.01M CaCl2

A_P_OL

(numeric) The P-content of the soil extracted with Olsen (mg P / kg)

B_COUNTRY

(character) The country code

pwarning

(boolean) Option to print a warning rather than error (stop) message for input checks (TRUE or FALSE)

Value

The capacity of the soil to supply and buffer zinc, evaluated given an optimum threshold for yield. A numeric value.

Examples

osi_c_zinc(B_LU = 'SOJ', A_CLAY_MI = 45, A_SAND_MI = 15,A_ZN_EDTA = 45, A_PH_WA = 6.5,
A_PH_CC = NA, A_ZN_CC = NA, A_ZN_RT = 51, B_COUNTRY='FR')
#> [1] 1