# VR-kalkudbringning baseret på jord-pH-data

## Opret et variabelt doseringskort (VRA) for kalk Rx ud fra jordens pH

Omsæt jord-pH-data til et maskinklar kalkpåføringskort (Rx-recept). Brug det til kun at sprede kalk, hvor investeringen giver positivt afkast.

### Interaktiv vejledning

{% @arcade/embed url="<https://app.arcade.software/share/b99IrB7wBzVDJu24MKFI>" flowId="b99IrB7wBzVDJu24MKFI" %}

### Økonomisk eksempel (VR vs fast 7.000 lb/ac)

Dette eksempel sammenligner variabel kalkning med en ensartet fast dosis over marken. Brug det som et hurtigt realitetstjek før eksport af Rx.

| Post                               | Værdi                    |
| ---------------------------------- | ------------------------ |
| Markareal                          | **33,91 ha**             |
| Gns. påført dosis                  | **6.348,2 lb/ac**        |
| Kalkpris                           | $**0,02 / lb** (\~$40/t) |
| Total kalk (beregnet)              | **523.853 lb**           |
| Materialeomkostning (mark)         | $**10,477**              |
| Materialeomkostning (per ha)       | **\~**$**309/ha**        |
| Besparelse vs 7.000 lb/ac (total)  | $**441.9**               |
| Besparelse vs 7.000 lb/ac (per ha) | **\~**$**13,0/ha**       |

### Eksportér kalk Rx-recepten

* Eksportér som ISOXML: [Eksportér VRA-kort i ISOXML-format](/geopard-tutorials/dnk/produkttur-webapp/eksporter-download/eksporter-vra-kort-i-isoxml-format.md)
* Andre eksportmuligheder (SHP og mere): [Eksport / download](/geopard-tutorials/dnk/produkttur-webapp/eksporter-download.md)


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