Sowing speed in no tillage system on early development of maize crop

Autores

  • Marcela Vieira Paulo Universidade do Estado de Mato Grosso
  • Rafael Cesar Tieppo UNEMAT http://orcid.org/0000-0001-8132-4813
  • Alcir José Modolo Universidade Tecnológica Federal do Paraná, Utfpr, Pato Branco
  • Rivanildo Dallacort Universidade do Estado de Mato Grosso
  • Adalberto Santi Universidade do Estado de Mato Grosso

DOI:

https://doi.org/10.14808/sci.plena.2018.023101

Palavras-chave:

seedling emergence. longitudinal distribution. seed deposition depth

Resumo

Sowing is a fundamental stage in crops’ cultivation process. If performed improperly, it can compromise the entire crop development. Seeding speed stands out as a key factor which can affect seeding quality. The objective of this study was to assess the effects of variation of working speed in maize initial establishment and in direct seeding’s’ quality parameters. The experiment was carried out in the municipality of Tangará da Serra – MT. Four seeding speeds were used V1 equal 1.11 (4.0), V2 equal 1.39 (5.0), V3 equal 1.67  (6.0) and V4 equal  1.94  m s-1  (7.0 km h-1). The assessed parameters were emergence speed index, emergence rate, seed deposition depth, plant spacing, and initial plant population. No interference of seeding speed variation was observed in seed deposition depth, emergence speed index and initial plant population. However, seeding speed influenced in plant spacing, in which speed increase was proportional to plant spacing increase.

Biografia do Autor

Marcela Vieira Paulo, Universidade do Estado de Mato Grosso

http://lattes.cnpq.br/0268852178492635

Rafael Cesar Tieppo, UNEMAT

Departamento de Agronomia

Alcir José Modolo, Universidade Tecnológica Federal do Paraná, Utfpr, Pato Branco

http://lattes.cnpq.br/7372544499267795

Rivanildo Dallacort, Universidade do Estado de Mato Grosso

http://lattes.cnpq.br/1292986021348016

Adalberto Santi, Universidade do Estado de Mato Grosso

http://lattes.cnpq.br/2300099357169820

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Publicado

2018-03-19