Spatial variability in soybean seeds quality and in chemical attributes of the soil of a production field in the Brazilian Cerrado

Danielle Helena Müller, Elisangela Clarete Camili, Walcylene Lacerda Matos Pereira Scaramuzza, Maria Cristina de Figueiredo e Albuquerque
2018 Journal of Seed Science  
Abstract: The objective of this study was to evaluate the spatial variability in soybean seeds quality and in soil chemical attributes of a production field. Data were collected at 138 georeferenced points of a soybean production property located in Santo Antônio de Leverger - MT. Soil related variables, such as phosphorus, potassium, calcium, magnesium, and organic matter (OM) contents, pH, cation exchange capacity (CEC) and base saturation (V%) were evaluated. On the other hand, yield, one
more » ... usand seed mass, size, germination, emergence in seedbed, electrical conductivity, accelerated aging and tetrazolium reaction were evaluated as seed variables. The data were submitted to descriptive and geostatistical analysis, and the fit semivariogram parameters were used to elaborate spatial distribution maps of the analyzed variables. After the analysis, it was possible to conclude that there was spatial variability in the evaluated attributes for both seeds and soil related variables, indicating that the soybean seed production area can be divided into management zones, which allows the definition of areas to be harvested or discarded within a field of seed production.
doi:10.1590/2317-1545v40n1182375 fatcat:rl4d6ziafvbppfjmv5e3divjzi