Geotecnologias aplicadas a análise de atributos químicos do solo em um sistema integrado de producão agropecuária

Abstract

Soil fertility is the main limiting factor in grain production, it is known that having good fertility leads to an increase in production; However, inadequate fertility and improper management over time affect productivity in the area. The objective of this work was to analyze the nutritional influence of the presence or absence of fecal plaque on soil fertility, in an integrated agricultural production system with the support of geotechnology. Taking into account these factors related to soil management, the SIPA system (Integrated agricultural production systems) can be used to improve the fertility of the area and redistribute nutrients through livestock grazing, and due to its random distribution in the area, it will also distribute its excrement in different locations. The experiment, therefore, was conducted in a SIPA area, where in winter a mix of oats, ryegrass and clover was sown and the area was used for cattle grazing. Two paddocks were used to evaluate the fertility of places with fecal plaque and without fecal plaque, through which it was possible to identify the influence that the animal brought to the environment. To facilitate the identification of these points, it was necessary to use GNSS receivers in order to demarcate the locations with and without fecal plaques. From this information, as well as soil analyses, it was possible to create fertility maps, which allowed us to identify that there was no significant variation in fertility in the area, and there were no different levels of chemical composition in the points with fecal plaque and without plaque. fecal. Using images obtained by RPA, vegetative vigor maps were created. With this data, it was possible to carry out a more precise fertilizer application in the area, as the crop tends to respond positively to precise applications.