Influência dos espaçamentos de plantio da cultura de cana-de-açúcar (Saccharum spp) nos atributos físico-hídricos do solo

• Autor(a) principal: Casiero, David Augusto Peixoto [UNESP]
• Data de Publicação: 2014
• Outros Autores: Lanças, Kleber Pereira [UNESP], Crusciol, Carlos Alexandre Costa [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.17224/EnergAgric.2014v29n4p236-240; http://hdl.handle.net/11449/137398
• topic: Soil compaction; Mechanized harvesting; Traffic; Compactação do solo; Colheita mecanizada; Tráfego

The evolution of sugar cane mechanized harvesting made the sector to question the current row spacing used due to its influence on soil compaction. The aim of this study was to evaluate the soil hydro-physical attributes in two row spacings after the farm machinery traffic. The treatments were conducted in a randomized block design with twelve repetitions, being subjected to the variance analyze in double factorial arrangement. The bulk density, the gravimetric water content, and the soil cone index along the position of crop lines (LC) and 0,1m from the row (LP) at the range of depth of 0 to 0.2m and 0.2 to 0.4m were assessed in both row spacings after the fourth harvest season. The results showed that the row spacings of 1.4 and 1.5m did not affect the values of bulk density and gravimetric water content of the soil in all ranges of depth and sample positions studied. However, in the depth range of 0.2 to 0.4 m, the values of soil cone index (IC) in the row spacing of 1.5 m were higher than the values in row spacing of 1.4 m, at both sampling positions. Regardless of row spacing and sample position, the values of soil cone index in the depth range of 0.2 to 0.4m were higher than the depth range of 0 to 0.2m.