MARQUERING, Johannes; SCHEUFLER, Bernd. Teilflächenspezifische Düngerausbringung. agricultural engineering.eu, [S. l.], v. 52, n. 2, p. 78–79, 1997. DOI: 10.15150/lt.1997.2558. Disponível em: http://195.37.233.11/landtechnik/article/view/1997-52-2-078-079. Acesso em: 4 mai. 2024.