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

Click here to load reader

Post on 25-Feb-2016




0 download

Embed Size (px)


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


Prsentation PowerPoint

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?


Herbicide, pesticide application?

Economic context


Environmental Rules


Technical references


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)