Spatial variability of soil physical properties in two management systems in sugarcane crop

Engenharia Agrícola

Laércio A. De Carvalho²  Ismael Meurer¹  Carlos A. Da Silva Junior¹  José F. Centurion¹ 

[1] ,Universidade Estadual de Mato Grosso do SulDourados MS ,Brasil

关键词: mechanized harvesting;    bulk density;    Saccharum spp;    colheita mecanizada;    densidade do solo;    Saccharum spp;   

DOI  :  10.1590/S0100-69162012000100007

来源: SciELO

【 摘 要 】

The aim of this study was to characterize the spatial variability of soil bulk density (Bd), soil moisture content (θ) and total porosity (Tp) in two management systems of sugarcane harvesting, with or without burning, in a Haplustox soil, in the 0-0.20 m layer. The study area is located in Rio Brilhante, state of Mato Grosso do Sul, Brazil, in Eldorado Sugar Mill. The plots have presented 180 m length, and 145.6 m width, totaling 90 points distributed in the form of a grid of nine rows by ten columns, with points spaced 20 m from its neighbor. Soil samples were collected at 0-0.20 m layer in 2007/2008 and 2008/2009 crops. The harvest with burning system had a higher density compared to mechanized harvest, in the two study periods. The moisture content as well as the porosity increased proportionally with the decrease of the density of the harvest burning system compared to the mechanized.

【 授权许可】

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