SCHWARZ, Jürgen; KERSEBAUM, Kurt Christian; REUTER, Hannes; WENDROTH, Ole. Stickstoff gezielt einsetzen. agricultural engineering.eu, [S. l.], v. 56, n. 5, p. 320–321, 2001. DOI: 10.15150/lt.2001.1792. Disponível em: http://195.37.233.11/landtechnik/article/view/2001-56-5-320-321. Acesso em: 4 mai. 2024.