Néptune, A., & Lourenço, R. (1977). Effect of urea applied in soil and by foliar sprayng on yeld and quality of wheat (Triticum aestivum, L.) . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 34, 497-513. https://doi.org/10.1590/S0071-12761977000100040