HEEGE, Hermann J .; REUSCH, Stefan. Zur teilflächenspezifischen Stickstoff-Kopfdüngung. agricultural-engineering.eu, [S. l.], v. 52, n. 3, p. 126–127, 1997. DOI: 10.15150/lt.1997.2538. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1997-52-3-126-127. Acesso em: 16 apr. 2024.