QUALIDADE OPERACIONAL DA SEMEADURA MECANIZADA EM FUNÇÃO DA VELOCIDADE DE DESLOCAMENTO E DA DENSIDADE DE SEMENTES
QUALIDADE OPERACIONAL DA SEMEADURA MECANIZADA EM FUNÇÃO DA VELOCIDADE DE DESLOCAMENTO E DA DENSIDADE DE SEMENTES
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DOI: https://doi.org/10.22533/at.ed.738122516123
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Palavras-chave: Cartas de controle; Controle Estatístico de Qualidade; Glycine max (L.) Merrill; Variabilidade.
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Keywords: Control charts; Statistical Quality Control; Glycine max (L.) Merrill; Variability.
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Abstract: Mechanized sowing is a crucial factor for establishing crops effectively and realizing their full productive potential. Variations in seed deposition can lead to issues with plant emergence and uniformity. Thus, this study aimed to evaluate the quality of mechanized sowing based on travel speed and seed density in soybean crops. The experiment was conducted in the experimental area of the Federal Technological University of Paraná (UTFPR) at the Santa Helena campus. The experimental design was based on the principles of Statistical Quality Control (SQC), incorporating two levels of sowing density (14 and 20 seeds per meter) and three travel speeds for the seed drill (5, 7, and 9 km/h). The quality indicators assessed included furrow depth and width, longitudinal seed distribution (normal, double, and missing spacing), and final crop yield. Statistical analyses were conducted using Statistical Process Control (SPC) through individual value control charts, which allowed for the identification of variability during the operation. The results indicated that all indicators remained within control limits, signifying process stability. A speed of 7 km h-1 emerged as the most suitable condition, as it exhibited less variability in the width and depth of the furrows, greater uniformity in seed distribution, and the highest average yields. In contrast, lower or higher speeds resulted in increased data dispersion, leading to a higher occurrence of planting failures and doubles, while slightly reducing productivity. Additionally, an increase in sowing density had a secondary effect, amplifying variability when paired with higher travel speeds. Therefore, operating the seeder at a speed of 7 km h-1, in accordance with the recommended densities for the region, is crucial for ensuring uniformity in the initial stand and maximizing soybean production performance. These findings highlight the significance of operational control and the adoption of best practices in agricultural mechanization.
- Andrew Theodor Rost
- Gabriel Geovane Scheidt
- José Dimas Rodrigues Oliveira
- Marco Antônio da Silva
- Henrique Carlos Mognol
- Gesivaldo Ribeiro Silva
- Armando Lopes De Brito Filho
- Lincon Oliveira Stefanello
- Allana Grecco Guedes
- Maura Gabriela Da Silva Brochado
- Franciele Morlin Carneiro