Efeito de velocidade, inclinação longitudinal e sistema de condução de sementes em dosadores pneumáticos

Abstract

Un estimates claim that the world population will reach 11 billion people by the middle of the year 2100. As Agriculture is the sector in charge of guaranteeing the planet’s food security, the responsibility to update itself technologically to increase food productivity falls under the same. In this context, factors such as sowing precision become even more important to ensure good productivity, so this work aimed to analyze the influence of different pneumatic meters in the sowing process through laboratory tests, namely: John Deere MaxEmerge5, Precision Planting vSet and Matermacc. The tests were carried out in the laboratory using a bench developed especially for metering tests and a data collection sensor also specifically designed for the activity. The meters were tested in terms of velocity, longitudinal inclination and seed driving system, and the results were analyzed using descriptive statistics (simple average), non-linear regression and experimental statistics (ANOVA and Tukey). From this analysis, it was possible to notice that in the John Deere MaxEmerge5 meter the joint action of the sowing speed, longitudinal inclination and the presence of a conductive tube influence the longitudinal distribution of seeds. In the Precision Planting vSet meter, the combination of conduction and speed factors and also the combination of conduction and longitudinal inclination factors influenced the percentage of acceptable spacings. Finally, in the Matermacc meter, there was a decrease in the percentages of acceptable spacings due to the presence of a conductive tube and also due to the increase in the experimental speed.