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# NKCL

Extraction de NO3- et NH4+ au KCL 1M

{% hint style="info" %}
Voir aussi le cahier des protocoles Biofunctool® (en téléchargement dans la rubrique Références)
{% endhint %}

<details>

<summary>Produits disponibles dans la boutique Eïwa shop</summary>

[Consommables](https://shop.eiwa.fr/produit/extraction-dazote-mineral-kcl-consommables/)

[Petit matériel](https://shop.eiwa.fr/produit/extraction-dazote-mineral-au-kcl-petit-materiel/)

</details>

### Objectif et domaine d'application

<mark style="color:blue;">**Ce protocole permet d’extraire les ions nitrates (NO3-) et ammonium (NH4+) du sol avec une solution de KCl à 1M. Cela donne une information sur la quantité d’azote minéral présent à un temps donné dans la parcelle. Les teneurs en Nitrates des sols ont une forte hétérogénéité spatiale et temporelle.**</mark>


---

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