Polyor SAS & CREDIBLE
Polyor SAS's, tenuous!, on-line participation in CREDIBLE's recent European Carbon-Farming Summit (Valencia, March 05-07). Thanx to Andrea Ferrarini (FG1.2 - Economic Value of SOM) for accommodating my absence at the event. For those interested, herein the pitch's pptx & the accompanying text.
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*Slide 1 : Polyor SAS has recently developed an artificial intelligence decision support system that sets sustainable targets for field-crop yields & their corresponding nitrogen fertilization rates. Agro-pedoclimatic data was fed to a core boosting algorithm. The resulting meta-model – AgroNum™, is easily implemented using only GPS coordinates ; no soil sampling, sensors, IoTs, drones, high resolution remote sensing, or even shapefiles are required. A dematerialized, prototypic MRV scheme, in sort. That said, AgroNum™ is first and foremost an ergonomic alternative – or rather a complement, to existing integrated fertilizer management schemes, and nutrient management plans.
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*Slide 2 : AgroNum™ uses plot-specific, N-response curves applicable to all non-Fabaceae field-crops across Europe. Farmers need only indicate the plot’s GPS coordinates, and target nitrogen yield; the corresponding sustainable N-fertilizer application rate will be recommended. And vice versa, a desired N-fertilization rate triggers the corresponding sustainable nitrogen-yield recommendation. By sustainable is meant nitrogen target yields and/or fertilizer application rates that lead to intermediate nitrogen fertilizer use efficiencies (NfUE), neither too low, nor too high, conducive to SOM conservation, or build-up on carbon-depleted soils.
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Slide 3 : More recently, nitrogen-fertilizer response curves have been used to calculate refundable nitrogen credits (RNCs). These N-credits are meant as a convenient & valuable alternative to carbon-farming derived C-credits. These N-credits reward - at no additional cost, soil conservation efforts by inferring the amount of supplemental nitrogen left to the crop residues at harvest, nitrogen that could have otherwise been harvested for profit in the grain. This nitrogen is a valuable service to the environment, and thus deemed refundable, at par with the real-time market price of nitrate ammonium, for instance. This said, refundable nitrogen-credits will be small as compared to publicized carbon-farming derived C-credits, but again at little or no additional cost to the farmer. AgroNum refundable N-credits ensure additionality since only residue nitrogen beyond baseline sustainability are valued. More so, this crediting scheme is perennial, circumventing the permeance issue. Leakage is no longer an issue since RNCs imply yield increases. Finally, there is no mitigation deterrence, since RNCs re-enforce existing behavior rather than speculate on SOC stocks & accrual rates.
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For further information - www.polyor.fr
#carbonfarming #mrv #polyor #agronum #sustainableagriculture
