Trajectories of Seeds and Granular Fertilizers

An Investigation into the FertilizerParticle Dynamics Off-the-Disc

“…Due to difficulties commonly encountered in trying to predict accurately the behavior of fertilizers on the surface of the disc, particularly, the effects of contact material-material, much of the practical aspects of design of spinning disc systems are empirical (Dampney et al, 2003). The study of aerodynamic properties of fertilizer materials and the interaction fertilizer-spreader has received considerable attention, e.g., Bilanski et al (1962), Mennel and Reece (1963), Reints and Yoerger (1967), , and Lawrence and Yule (2007). Research has focused on theoretical models to study particle trajectories on-and offthe-disc while experimental work has also been conducted using 'ideal' particles or reduced number of granular materials (Aphale et al, 2003).…”