02163naa a2200337 a 450000100080000000500110000800800410001902400520006010000190011224501460013126000090027730000100028652011720029665000150146865000110148365000090149465000220150365300170152565300230154270000200156570000160158570000250160170000220162670000140164870000180166270000220168070000260170270000190172870000230174777300550177021541562023-06-01       2023    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1007/s42729-023-01295-32DOI1 aMAJARON, V. F.  aInteraction of Aspergillus niger in double-coated urea granules reduces greenhouse gas emissions from N fertilization.h[electronic resource]  c2023  a10 p.  aUrea is the main nitrogen source applied in agriculture and directly impacts agricultural productivity. However, it presents significant losses that reduce plants? nitrogen use efficiency (NUE) and promote greenhouse gas emissions, such as N2O. The coating technology allows for an increase in the NUE, making the nutrient available gradually and uniformly, and combining with microorganisms? action. This work developed and evaluated a double-coating system based on castor oil?polyurethane and maize starch activated by Aspergillus niger for urea granules. We tested the coated urea granules in Palisade grass (Brachiaria brizantha) and measured losses of N2O and NH3. The results showed that the combination between controlled release and Aspergillus niger action reduced the N2O and NH3 emissions, suggesting a local buffering pH effect. The urea loss reduction significantly impacted plant development, increasing N use efficiency, dry mass production, and N uptake. The results support the suitability of a coating system combining controlled release and microorganisms, aiming to better synchronize the nutrient with the plant and reduce environmental impacts.  aCastor oil  aStarch  aUrea  aAspergillus Niger  aN2O emission  aNH3 volatilization1 aSILVA, M. G. DA1 aPFEIFER, M.1 aBORTOLETTOSANTOS, R.1 aVELLOSO, C. C. V.1 aKLAIC, R.1 aPOLITO, W. L.1 aRIBEIRO, S. J. L.1 aBERNARDI, A. C. de C.1 aFARINAS, C. S.1 aOLIVEIRA, C. R. de  tJournal of Soil Science and Plant Nutrition, 2023.