Abstract
ABSTRACT The establishment of grain crops in Brazil is an important industrial process in the agricultural chain, requiring the correct deposition of granular fertilizer over the sowing furrow and more efficient, precise, and sustainable assessments in the operation, which can be achieved with the statistical process control. This study aimed to assess the effect of the angular velocity on different inclinations of the helical metering mechanism on the granular fertilizer deposition. An automated electronic bench was used to assess the deposition quality of granular fertilizers considering different angular velocities (1.11, 1.94, and 2.77 m s-1) and longitudinal and transverse inclinations (+15, +7.5, 0, −7.5, and −15°), with the helical doser by overflow. Flow data were collected and submitted to descriptive statistics and statistical process control. The metering mechanism showed expected variations, with acceptable performance under process control. The values of the flow rates of the granular fertilizer increased as velocity increased, standing out longitudinal inclinations of +7.5 and +15°, providing higher fertilizer depositions.
Highlights
Demands for maximizing crop efficiency have emerged as contemporary agriculture advances, aiming to meet the requirements imposed by the demographic growth projected for the coming decades (Hickey et al, 2019)
The establishment of grain crops in Brazil is an important industrial process in the agricultural chain, requiring the correct deposition of granular fertilizer over the sowing furrow and more efficient, precise, and sustainable assessments in the operation, which can be achieved with the statistical process control
This study aimed to assess the effect of the angular velocity on different inclinations of the helical metering mechanism on the granular fertilizer deposition
Summary
Demands for maximizing crop efficiency have emerged as contemporary agriculture advances, aiming to meet the requirements imposed by the demographic growth projected for the coming decades (Hickey et al, 2019). Sowing and fertilization are primordial stages of the industrial process of establishment of grain crops in Brazil, which are carried out concurrently, that is, high genetic quality seeds distributed by highly efficient metering mechanisms (Xing et al, 2020) and more sophisticated fertilizers (Dimkpa et al, 2020), which requires the correct deposition along the sowing furrow to maximize crop productivity It can only be achieved with efficient metering mechanisms, with high quality in their manufacturing process, which is directly related to their principles of operation (Silva et al, 2010a; Garcia et al, 2012; Franck et al, 2015).
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