Soil Fertility: a case study at Água Limpa Farm

Correct soil fertility management is essential for the success of an agricultural enterprise. As agricultural species have improved, increasing their production rates, soils have become more nutritionally demanding and fertility assessment has become more relevant in production systems. Therefore, the aim of this study was to assess the fertility conditions of two different areas of the Água Limpa Farm, belonging to the University of Brasilia, using chemical analyses. One of the areas is cultivated with maize for silage and the other with Tifton 85 grass for grazing by dairy cows. The soil's texture, organic matter, macronutrient content, pH, potential CEC and base and aluminium saturation at a depth of 0 - 20 cm were assessed. Based on the data obtained, a diagnosis was made of the area and recommendations were made for fertilising and liming to adjust the fertility levels in the areas for the production of these species.