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Este trabalho teve o objetivo de avaliar a compactacao do solo por meio de um ensaio oedometrico. O estudo foi desenvolvido na fazenda experimental Rafael Fernandes, da UFERSA localizada em Alagoinha, zona rural do municipio de Mossoro/RN.O experimento foi conduzido  no periodo de Marco de 2012 a Agosto de 2012. Os parâmetros analisados foram densidade do solo, materia orgânica, indices de vazios estruturais, indice de compressao. O delineamento experimental utilizado foi em blocos casualizados, com tres tratamentos e quatro repeticoes. Os tratamentos foram representados por tres profundidades de solo 0,0-0,05m; 0,05-0,10m e 0,10-0,20m. Os resultados evidenciaram que os valores de Materia orgânica e densidade do solo variaram inversamente. O ensaio oedometrico revelou que o indice de vazios estrutural do solo e reduzido com o aumento da densidade do solo e com o teor de agua para uma mesma pressao aplicada. Para o mesmo teor de agua o indice de vazios estrutural diminuiu com o aumento da pressao aplicada. O indice de compressao do solo diminuiu com a profundidade. Evaluation of soil compaction by means of a test oedometrico ABSTRACT- This study aimed to assess soil compaction through an essay oedometrico. The study was conducted at the experimental farm, Rafael Fernandes of UFERSA located in Alagoinha, rural zone of Mossoro / RN.The experiment was conducted in the period from March 2012 to August 2012. The parameters analyzed were bulk density, void ratio structural compression index and soil organic matter. The experimental design was a randomized block design with three treatments and four replications. The treatments consisted of three soil depths (0.0-0.05 m, 0.05-0.10 m and 0.10-0.20 m) The results showed that the values of organic matter decreased with increasing soil depth. The bulk density increased with depth, with a smaller value obtained in the 0 to 5 cm. The oedometer test revealed that the void content of the soil decreased with increased soil density and moisture content for the same pressure applied. For the same water content of the structural void ratio decreased with increasing applied pressure. The rate of compression of the soil decreased with depth.

Avaliação da compactação do solo por meio de um ensaio oedometrico