Soil sampling requirements in Spain
National rules: Real Decreto 1051/2022, with Real Decreto 1311/2012 Annex III as amended. National guidance: Ministry of Agriculture practical guide to rational fertilisation.
| Country / region | Purpose / programme | Time / frequency | Area per sample | Method | Depth | Cores | Status and source |
|---|---|---|---|---|---|---|---|
| Spain | |||||||
| Spain | Soil data for the fertilisation plan (pH, P, K, organic matter)Sustainable nutrition of agricultural soils, plan de abonado and farm record book |
| Not specified | Parcels of similar characteristics grouped in one crop sheet may be analysed through a single representative parcel. | P2O5, K2O and organic matter in the top 30 cm | Not specified | ConditionalReal Decreto 1311/2012, Annex III (consolidated, BOE) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Method
Depth
Who it applies to
Outside the rule
Laboratory and analysis
Field identifiers
Sources
Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
| Spain | Soil sampling for fertiliser adviceMinistry of Agriculture practical guide to rational fertilisation |
| Not specified | Divide the field into uniform areas by colour, position, depth and crop growth, each one an area that can be fertilised separately. Sample each separately. | Grassland and no-till 0 to 15 cm. Arable crops the plough layer, 25 to 30 cm. Tree and vine crops 0 to 40 cm in most cases; new plantings or calcareous soils two samples, to 30 cm and 30 to 60 cm. Nitrate about 50 cm. | At least 10 to 12 sub-samples per composite, about 500 g in total | Official guidanceMAPA, Guía práctica de la fertilización racional de los cultivos en España, Part I (PDF) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Method
Depth
Cores
SourcesSources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
Soil sampling regulations in every country
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Set the area per sample, the cores and the depth your rule asks for. GeoPard places the points on a grid or by zone, routes the walk, prints the labels and takes the plan to the field on a phone.
A planning reference built from official sources, not legal advice. Rules apply by jurisdiction, nutrient, land use and programme: check the current official text and your laboratory’s instructions before fieldwork.