Variabilidade espacial e qualidade de semeadura do milho safrinha

Abstract

To obtain high yields, the first point to note is the quality of sowing. The objective was to evaluate the spatial variability and quality sowing of offseason maize. Data collection occurred in Dourados region, MS, specifically at UFGD experimental farm. Spatially distributed and with sample grid of one point every 0.5 hectare, the quantity of plants in two meters and the distance between plants were collected in order to calculate the longitudinal distribution evaluating the normal defective and double spacing and plant stand. Subsequently after data collecting, it was analyzed by descriptive statistics and geostatistics for spatial variability maps making and statistical quality control (SQC). The plant stand and the longitudinal distribution of the normal, flawed and double spacing for maize showed spatial dependence. The plant stand and normal distribution were below the minimum amounts required for quality seeding. The plant stand, by statistical quality control, was considered out of control, as well as the longitudinal distribution of flawed spacing. So maize seeding performed on this property was considered of low quality, not reach the minimum required amounts of plant precision in the distribution booth.