Based on the publication "De invloed van de waterhuishouding op de landbouwkundige produktie". Rapport van de werkgroep HELP-tabel, Mededelingen Landinrichtingsdienst 176 (1987). Rapport van de werkgroep HELP-tabel
Approximate analytical formulas are used to calculate the reduction in crop productions.
This package exports no sample data sets/objects
This package exports the following functions:
ht_reduction
ht_soilnr_to_HELPnr
ht_bofek_to_HELPnr
ht_soil_unit_to_HELPnr
ht_soil_units
ht_bofek_numbers
ht_HELPnr_to_HELPcode
ht_tab_calc_values
ht_plot_tab_calc_values
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