> For the complete documentation index, see [llms.txt](https://docs.geopard.tech/geopard-tutorials/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.geopard.tech/geopard-tutorials/nor/agronomi/vr-kalkspredning-basert-pa-jord-ph-data.md).

# VR-kalkspredning basert på jord-pH-data

## Lag et variabel-dose (VRA) kalkreseptkart fra jord-pH

Gjør jord-pH-data om til et maskinklart kalkpåføringskart (resept). Bruk det til å kalkbehandle bare der avkastningen gir positiv avkastning på investeringen.

### Interaktiv gjennomgang

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

### Økonomisk eksempel (VR vs fast 7 000 lb/acre)

Dette eksempelet sammenligner variabel dose kalk mot en enkelt flat dose over hele åkeren. Bruk det som en rask sjekk før du eksporterer resepten.

| Post                                 | Verdi                       |
| ------------------------------------ | --------------------------- |
| Åkerareal                            | **33,91 ha**                |
| Gj.sn. påført mengde                 | **6 348,2 lb/acre**         |
| Kalkpris                             | $**0,02 / lb** (\~$40/tonn) |
| Total kalk (beregnet)                | **523 853 lb**              |
| Materialkostnad (åkeren)             | $**10,477**                 |
| Materialkostnad (per ha)             | **\~**$**309/ha**           |
| Besparelse vs 7 000 lb/acre (totalt) | $**441.9**                  |
| Besparelse vs 7 000 lb/acre (per ha) | **\~**$**13,0/ha**          |

### Eksporter kalkresepten

* Eksporter som ISOXML: [Eksporter VRA-kart i ISOXML-format](/geopard-tutorials/nor/produktomvisning-nettapp/eksport-nedlasting/eksporter-vra-kart-i-isoxml-format.md)
* Andre eksportmuligheter (SHP og mer): [Eksporter / last ned](/geopard-tutorials/nor/produktomvisning-nettapp/eksport-nedlasting.md)


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