01845naa a2200265 a 450000100080000000500110000800800410001902400350006010000240009524501040011926000090022330000090023252010770024165000210131865000230133965000130136265300110137565300210138670000190140770000230142670000210144970000240147070000180149477300670151221041272023-01-24       2018    bl uuuu     u00u1 u    #d7 a10.1007/s11270-018-3874-22DOI1 aMENDONÇA, H. V. de  aBiofertilizer replace urea as a source of nitrogen for sugarcane production.h[electronic resource]  c2018  a7 p.  aAbstract In this study, different nitrogen doses (0, 16, 48, 64, 80, and 96 kg ha−1) from two sources, biofertilizer (from anaerobic digestion of cattle wastewater) and urea, were applied to cultivate two sugarcane varieties (RB 867515 and SP 803280). °Brix values higher than 21% were obtained with application of 80 kg ha−1 from biofertilizer. The mean productivity of the cultivar RB 867515 using biofertilizer was 147.5 ton ha−1 , while from urea it was 136.87 ton ha−1 . The cultivar SP 803280 produced an average yield of 152.25 ton ha−1 when applying biofertilizer and 154.37 ton ha−1 with use of urea. Significant differences (P ≤ 0.05) between the use of biofertilizer and urea were detected for cultivar RB 867515 in terms of crude protein concentration. The application of 80 kg of N ha−1 was considered the ideal dose, corresponding to fertirrigation blades of 54 mm of biofertilizer. The experiment showed that the biofertilizer formulation analyzed can replace urea as a nitrogen source for growing sugarcane.  aApplication rate  aBiomass production  aNitrogen  aGrowth  aWastewater reuse1 aMARTINS, C. E.1 aROCHA, W. S. D. da1 aBORGES, C. A. V.1 aOMETTO, J. P. H. B.1 aOTENIO, M. H.  tWater, Air, & Soil Pollutiongv. 229, n. 7, article 216, 2018.