b. de solan , a.d. lesergent , d. gouache arvalis – institut du végétal

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Current use and potential of satellite imagery for crop production management The vision of ARVALIS after 10 years of experience. B. de Solan , A.D. Lesergent , D. Gouache ARVALIS – Institut du végétal. ARVALIS presentation. ARVALIS: - PowerPoint PPT Presentation

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Current use and potential of satellite imagery for crop production managementThe vision of ARVALIS after 10 years of experienceB. de Solan, A.D. Lesergent, D. GouacheARVALIS Institut du vgtalARVALIS presentationARVALIS: a French applied research institute funded and run by farmerson cereals, maize, pulses, potatoes and forage cropsin the field of: production, storage, preservation, first process (food and non food uses)

Provide advices for cropping practicesEvaluation of new varietiesTest new cropping practicesDevelop decision support tools

Objective: to maintain a high level of production in a better wayServices to farmers, agricultural organizations and firms from the various chains, using environment-friendly cropping systems.Increasing needs in observation data to optimize crop productionEnvironmental constraints are increasingGoal: a reduction of 50% of treatments within 2008 - 2018A better water management

A need to keep production at a high level of quantity and qualityIncreasing needs for foodNew uses of agro products (bio fuel, bio materials)Strict rules on products quality (mycotoxins)

A fast evolution of agricultural products prices: requires a better harvest forecast

3Decision support tools: requirementsWhich crop ?

Which variety?

Amount and timing of nitrogen application?

Irrigation?

Herbicide, pesticide application?

Economic context

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Environmental Rules

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Technical references

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Agronomic models (DST)Service providerThe farmer has to take decisionsField trialsLawFarmers field observationsSoilClimateVegetationAsksInformationNeedsFarmers field observationsSoilClimateVegetationGrain marketStrategic decisionsTactical decisionsExisting DST in FranceThe case of nitrogen management3 kinds of vegetation based tools are used:Leaf scale tools (HNTester = SPAD)Tractor borne sensors (Yara Nsensor, GreenSeeker, CropCircle, )Satellite imagery (Farmstar, )

15 - 20 % of crop lands are managed with a DST for nitrogen applicationsToo low !

Due to lack of observations availability (spatially and temporally) and cost of products

Use of satellite observation has strong interests for a large development of DST:No investment / tractor borne sensorsControl possible on calculation process (centralized processing)Monitoring interesting at different scales (farmer but also cooperatives, traders)The spatial resolution fits well application requirements (10 m)From satellite to the farmer : a long way!Satellite products processing :LAIChlorophyll contentFarmer wants application maps:Time of application (phenology)