Assessing biomass and nitrogen uptake by rapeseed crops

ImageIT has been designed to partially replace tedious biomass weighing. ImageIT estimates the amount of nitrogen absorbed by the crop based on the coverage index, the green pixel rate and an assessment of senescent leaves. ImageIT's technology is based on comprehensive image analysis, canopy pixel classification, background noise filtering and canopy pixel enumeration.

Using the Atfarm application, ImageIT transforms your smartphone camera into a nitrogen nutrition management tool. Biomass and nitrogen uptake can be reliably assessed from your phone, much more easily and quickly than traditional biomass weighing at the start and end of winter.

Download the free Atfarm application and start using Image IT today!

The tool is used in parallel with, and in addition to, the information provided by monitoring yellow vials ideally positioned in a network (BSV type).

This tool can be used to classify a plot into a global risk level. The overall risk combines an agronomic risk and a risk linked to the weevil's historical harmfulness in the département.

This decision rule is available in API format. Log on to the API-Agro platform or contact us for more information.

This tool estimates your rapeseed's risk of lodging in spring, and tells you whether or not to apply a growth regulator, depending on the variety of rapeseed, its susceptibility to lodging, the stand density, the amount of nitrogen available, and whether or not fall elongation has occurred.

This decision rule is available in API format. Log on to the API-Agro platform or contact us for more information.

This tool estimates the risk of autumn elongation in rapeseed and indicates whether or not to apply a growth regulator, depending on the earliness of the six-leaf stage, the susceptibility of the variety to elongation, density, available nitrogen and the size of the rapeseed.

This decision rule is available in API format. Log on to the API-Agro platform or contact us for more information.

This tool has been built by integrating trial results and the expertise of Terres Inovia collaborators.

The final risk assessment is given here as an indication. It is the responsibility of the user (farmer, technician) to use this risk assessment for the reasoning of any phytosanitary intervention.

This decision rule is available in API format. Log on to the API-Agro platform or contact us for more information.

1. Risk assessment for flea beetle larvae should be carried out from the second half of November, and repeated during the winter if conditions are mild.
2. The harmfulness of this pest depends on insect pressure and rapeseed growth dynamics.

The tool's integrated decision rule combines these two aspects, making it possible to estimate a risk linked to the plot's agronomic situation, as well as a risk linked to larval pressure.

The tool is not a substitute for field observation, which remains essential for any decision-making process.

The overall risk estimate is associated with a recommendation: whether or not to intervene, and which insecticide to use, depending on the insecticide resistance situation in the département.

This decision rule is available in API format. Log on to the API-Agro platform or contact us for more information.

The tool displays :

• In graphic form: the evolution of the daily probability of capture up to D+7, for a given commune
• In map form: probability levels over the whole territory, for a given date (up to D+7).

The alert threshold is defined by the model's algorithms. Above this threshold, the probability of capturing the pest increases significantly.

The rapeseed stem weevil flight prediction tool was developed thanks to the Produire project of the Cap Protéines program, and received support from the French Ministry of Agriculture and Food Sovereignty as part of the recovery plan.

The terminal bud weevil flight prediction tool was developed thanks to the Adaptacol² project and received support from the Casdar.