Comparison between the performance of a Movable boards Ditch opener and the conventional ditch opener in cultivated and uncultivated soils. University of Thi-Qar Journal of agricultural research, [S. l.], v. 9, n. 2, p. 108–117, 2021. DOI: 10.54174/utjagr.v9i1.110. Disponível em: https://jam.utq.edu.iq/index.php/main/article/view/110.. Acesso em: 7 may. 2024.