Rapeseed nitrogen ruler

Use Terres Inovia's online Réglette azote colza® tool to calculate the nitrogen dose to be applied to your rapeseed crops in just a few clicks.

*Champs obligatoires

Votre parcelle

Département de la parcelle

Nom de la parcelle

Type de sol de la parcelle

Veuillez choisir le département de la parcelle.

Fréquence d'apport

Historique d'apport de produits organiques

Apport de produits organiques

Produit du premier apport

Teneur en azote (k N/t ou kg N/m3)

Quantité (kg/ha ou m3/ha)

Précédent et couvert associé

Implantation après pois protéagineux

Oui

Non

Association avec un couvert de légumineuse

Oui

Non

Objectif de rendement

Objectif de rendement (q/ha)

Poids frais du colza

Poids du colza entrée hiver (kg/m2)

Poids du colza sortie hiver (kg/m2)

Reliquat de dose d'azote

Disposez vous d'une valeur de reliquat mesurée ?

Oui

Non

Reliquat de dose d'azote mesurée (kg/ha ou m3/ha)

I agree to share this data with Terres Inovia.

Oui

Non

Tool description

Little information required

The information to be provided includes: department, soil type, history of peas and irrigation. They are few in number, but must be filled in very precisely.

A tool that can be used in most regions

The EvA tool was developed from a database containing information on 780 plots in the northern half of France, then validated on 120 plots, mainly in the Normandy and Centre-Val de Loire regions. This tool can be used in the Bourgogne-Franche-Comté, Bretagne, Centre-Val de Loire, Grand Est, Hauts-de-France, Île-de-France, Normandie, Nouvelle-Aquitaine and Pays de la Loire regions.

Points of attention

At present, only the effect of a winter or spring pea crop on the evolution of a soil's Infectious Potential is known. The effect of other susceptible legumes has not yet been taken into account in this tool, for lack of data. Consequently, for plots that have received one or more susceptible legumes other than pea as a main, intermediate, associated or companion crop, the risk may be underestimated. Only the bioassay can be used to estimate the risk in these plots*.
*Susceptible legumes: lentil, alfalfa, chickling vetch, certain species/varieties of vetch (Access the test) "