AgroNum & N-fertilizer use efficiency (NfUE)
Nitrogen fertilization (Nf) is often incriminated. N-fertilization is said to be linked to soil organic matter and nitrogen (No) depletion over time (dt). For instance, data from Table 3 in Mulvaney et al. 2009 clearly shows that No depletion is in fact correlated to Nf. This said, data from Table 5 in Mulvaney et al. 2009 (loosely re-tabulated & graphed) indicate that if the % Nf use efficiency, %NUE, of these same N-fertilizers is increased, soil organic nitrogen (No) is conserved, i.e. organic N losses are reduced if not reversed.
Soil organic matter & carbon conservation is not so much about reducing N-fertilization but rather about increasing NUE. NUE is at the core of Polyor SAS's AgroNum approach to sustainable agriculture and integrated fertilizer management (https://lnkd.in/eBmfT3NM).
#agriculture #sustainable #conservation #durabilité #fertilisationraisonnée #sustainableagriculture #eucarbonremoval #conservationdessols
