Calculate the phoshporus excesss index (wrapper function)

This function calculates the P excess index for all European countries (if available).

Usage

osi_nut_p(
  B_LU,
  B_SOILTYPE_AGR = NA_character_,
  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_CACO3_IF = NA_real_,
  A_P_OL = NA_real_,
  A_P_M3 = NA_real_,
  A_P_CAL = NA_real_,
  A_P_AAA = NA_real_,
  A_P_DL = NA_real_,
  A_P_AL = NA_real_,
  A_P_CC = NA_real_,
  A_P_WA = NA_real_,
  B_COUNTRY
)

Arguments

B_LU

(character) The crop code

B_SOILTYPE_AGR

(character) The soil type in a particular region

A_CLAY_MI

(numeric) The clay content of the soil (%)

A_SAND_MI

(numeric) The sand content of the soil (%)

A_C_OF

(numeric) The organic carbon content in the soil (g C / kg)

A_SOM_LOI

(numeric) The organic matter content of the soil (%)

A_PH_WA

(numeric) The pH measured in water.

A_PH_CC

(numeric) The pH measured in CaCl2 extraction.

A_CACO3_IF

(numeric) the percentage of CaCO3 (%)

A_P_OL

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

A_P_M3

(numeric) The exchangeable P-content of the soil measured via Mehlich 3 extracton (mg P/ kg)

A_P_CAL

(numeric) The exchangeable P-content of the soil measured via Calcium Ammonium Lactate (mg P/ kg)

A_P_AAA

(numeric) The exchangeable P-content of the soil measured via acid ammonium acetate extraction (mg P / kg)

A_P_DL

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

A_P_AL

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

A_P_CC

(numeric) The P-content of the soil extracted with CaCl2 (mg P / kg)

A_P_WA

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

B_COUNTRY

(character) The country code

Value

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