Management methods of black oat straw on black bean crop in no-tillage

• Autor(a) principal: Partica Nogara, Willian Jr.
• Data de Publicação: 2022
• Outros Autores: Santos, Jean Francisco, de Souza, Nátali Maidl, Ohse, Silvana
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Agropecuária Catarinense (Online)
• Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/1444
• topic: Phaseolus vulgaris; mulching; rolling; desiccation; Phaseolus vulgaris; cobertura morta; rolagem; dessecação

 In order to determine the best management of black oat in the black bean crop, a randomized block experiment with 4 replicates was conducted, in a factorial scheme, consisting of 3 levels of the oat desiccation time factor (30, 15 and 0days before of the sowing-DBS) and 3 levels of the straw management factor (transverse, longitudinal and non-rolling). The percentage of soil cover by oats was higher when transverse rolling and no rolling. The lowest number of weeds per unit areaat 30 days afer sowing (DAS) was obtained with desiccaton on the 0 DBS. The absence of rolled oats provided a lower fresh and dry mass of weeds at 30 DAS and at harvest, with bean yield reflectons, which was superior to the use of transverse andlongitudinal rolls. Thus, it can be inferred that desiccaton can be carried out on the same day as the black bean sowing, cv. IPR-Graúna, without damage to grain yield, as well as, the cost of rolling the predecessor crop, in the case of black oats, isunnecessary