Unidades de gestão diferenciada na sucessão soja/milho

Abstract

The technique of precision agriculture is used in the definition of management zones on agricultural properties, in order to facilitate management, while respecting the particularities of the area. Therefore, the objective was to analyze the spatial variability and outline the management zones in an area of soy and corn through data on productivity and soil fertility. The work was carried out in a commercial farm, located in the municipality of Ponta Porã-MS, Brazil. The experimental area contains 97.5 hectares where the succession of soybeans and corn is carried out. Descriptive, geostatistical and data interpolation analysis was performed to give rise to the productivity, fertility and NDVI maps, which later gave rise to the management zones, also known as management zones. The spectral response made using the NDVI vegetation index presented limitations in obtaining the images because of the presence of clouds, however the productivity of soybeans and corn showed a correlation with the NDVI tool. All soil variables evaluated have a strong or moderate degree of spatial dependence, with the exception of Mg. Geostatistics and NDVI vegetation index and productivity maps are tools that assist in making decisions related to soil management in grain-producing areas.