02147naa a2200373 a 450000100080000000500110000800800410001902400360006010000220009624501050011826000090022352010620023265000160129465000150131065000320132565000300135765000160138765000270140365000130143070000180144370000210146170000230148270000240150570000220152970000200155170000230157170000200159470000190161470000200163370000270165370000230168070000200170377300500172320880432019-04-16 2018 bl uuuu u00u1 u #d7 a10.1038/s41598-018-20887-z2DOI1 aWITHERS, P. J. A. aTransitions to sustainable management of phosphorus in Brazilian agriculture.h[electronic resource] c2018 aBrazil's large land base is important for global food security but its high dependency on inorganic phosphorus (P) fertilizer for crop production (2.2 Tg rising up to 4.6 Tg in 2050) is not a sustainable use of a critical and price-volatile resource. A new strategic analysis of current and future P demand/supply concluded that the nation's secondary P resources which are produced annually (e.g. livestock manures, sugarcane processing residues) could potentially provide up to 20% of crop P demand by 2050 with further investment in P recovery technologies. However, the much larger legacy stores of secondary P in the soil (30 Tg in 2016 worth over $40 billion and rising to 105 Tg by 2050) could provide a more important buffer against future P scarcity or sudden P price fluctuations, and enable a transition to more sustainable P input strategies that could reduce current annual P surpluses by 65%. In the longer-term, farming systems in Brazil should be redesigned to operate profitably but more sustainably under lower soil P fertility thresholds. aAgriculture aPhosphorus aSustainable land management aAdministração Agrícola aAgricultura aFertilizante fosfatado aFósforo1 aRODRIGUES, M.1 aSOLTANGHEISI, A.1 aCARVALHO, T. S. de1 aGUILHERME, L. R. G.1 aBENITES, V. de M.1 aGATIBONI, L. C.1 aSOUSA, D. M. G. de1 aNUNES, R. de S.1 aROSOLEM, C. A.1 aANDREOTE, F. D.1 aOLIVEIRA JUNIOR, A. de1 aCOUTINHO, E. L. M.1 aPAVINATO, P. S. tScientific Reportsgv. 8, article 2537, 2018.