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The objective of this work was to analyze the quantitative total organic carbon (TOC) and total organic carbon stock (ECOT) grown with cabbage in an irrigated plot in the semiarid region. The study was carried out in the municipality of Pesqueira, in the Agreste region of Pernambuco. In organic fertilization (corral manure), pits were dug and fertilized with 400 g of manure, corresponding to 20 t ha-1 at a planting density of 50,000 ha-1 plants. The study was conducted in two soil samples, at 19 and 79 days after transplantation, at depths of 0-0.20 and 0.20-0.40 m. The treatments were arranged in a randomized block design, in a 4 x 2 factorial scheme, with four replications. Data were analyzed based on the significance of the analysis of variance by the F test and the means compared by the t test at 5% probability. There was only a significant effect for the depths analyzed, at 19 DAT the mean TOC was 11.1 and 8.8 g kg-1 and at 79 DAT this average was 10.2 and 7.7 g kg, for depths of 0-0.2 and 0.2-0.4 m, respectively. For the total organic carbon stock (ECOT) at the depths evaluated there was a reduction of 20.89 and 24.92% at 19 and 77 DAT.

Análise do carbono orgânico no solo em lote irrigado com repolho na Região Agreste de Pernambuco- PE