Upland rice sowing in conservationist production systems in Vale do Ribeira

Autores

  • Wilson José Oliveira de Souza UNESP - Univ. Estadual Paulista "Júlio de Mesquita Filho" Campus de Registro
  • Eduardo Nardini Gomes UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro
  • Artur José de Santana Neto UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro
  • César Henrique de Jesus UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro
  • Samuel Ferrari UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro
  • Tamires Tangerino UNESP - Univ. Estadual Paulista "Júlio de Mesquita Filho" Campus de Registro

DOI:

https://doi.org/10.15361/1984-5529.2016v44n2p156-164

Resumo

Vale do Ribeira (Ribeira Valley), region located in the southern of São Paulo State, Brazil, has little more than 30% of agriculturable area, the conservationist systems being promising to optimize the use of the soil and of the agricultural machines. The objective was to evaluate the effective field capacity of a multiple seeder-fertilizer, as well as plant and soil parameters associated with the effects of the machine. The exper­iment was carried out in the Experimental Campus of UNESP, in the Registro County, in the agricultural year 2011/2012, under Cfa humid subtropical climate with hot summer, according to the Köppen classification, with average temperature of 22 °C and annual rainfall of 1400 mm. The experimental area has alluvial soils of the type eutrophic Cambisol. The treatments used were CT (conventional tillage), MT (minimum tillage) and NT (no-tillage). The data collected showed that (1) the highest surface coverage in NT reduced soil temperature at 14 h, as well as the thermal amplitude; (2) the average number of days to seedling emergence was higher in no-tillage, caused by the greater surface coverage and the lower soil temperature in the hottest period of the day; (3) the initial stand of the rice crop was similar in the three tillage systems.

 

Additional keywords: minimum tillage; no-tillage; seeder; soil temperature.

Biografia do Autor

Wilson José Oliveira de Souza, UNESP - Univ. Estadual Paulista "Júlio de Mesquita Filho" Campus de Registro

Agronomia, Area de Maquinas e Mecanizacao Agricola, Plantio Direto.

Coordenador do LAMMEC - Lab. Máquinas e Mecanização de Precisão.

Lider do Grupo de PEsquisa LAMMEP - Lab. Máquinas e Mecanização de Precisão.

Tutor do PET - Programa de Educação Tutorial (Grupo PET Aro Registro).

Eduardo Nardini Gomes, UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro

Agronomia, agrometeorologia.

Artur José de Santana Neto, UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro

Agronomia, Area de Maquinas e Mecanizacao Agricola, Plantio Direto.

César Henrique de Jesus, UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro

Agronomia, Area de Maquinas e Mecanizacao Agricola, Plantio Direto.

Samuel Ferrari, UNESP - Univ. Estadual Paulista "Julio de Mesquita Filho" Campus de Registro

Agronomia, agricultura

Tamires Tangerino, UNESP - Univ. Estadual Paulista "Júlio de Mesquita Filho" Campus de Registro

Agronomia

Publicado

30/03/2016

Edição

Seção

Engenharia Rural/Agrícola - Rural/Agricultural Engineering