Abstract
This study was carried out in irrigated areas of the Congo region, Paraíba State, Brazil, aiming to evaluate the temporal variability of soil fertility, salinity and sodicity, through random sampling. Soil samples were collected in 27 points at 0 – 20 cm soil depth, during rainy (May/06) and dry (December/ 06) periods. The soil parameters such as pH, Ca, Mg, K, MO, P, EC se and ESP were analyzed using descriptive statistics. The soils of the studied area in both periods presented high concentrations of Ca, Mg, K and P and medium values of OM. These results indicate that an increase in soil fertility may be reached with additions of OM. The soil samples were considered normal in relation to salinity and sodicity due to low EC se and ESP, respectively. The analyzed parameters showed variation between the sampling periods.
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Schedule a callMore From: Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences
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