Interference of Operating Speed and Physical Properties of Granulated Fertilizers With Their Deposition

Abstract

Uniformity in the deposition of granulated fertilizers in the seed furrow is essential for crop development and productivity. Quantitative (dose and flow) and qualitative factors (segregation and formulation) influence granulated fertilizer distribution throughout its application. This experiment aimed to compare the deposition of two granulated fertilizers with different chemical formulations (04-14-08 and 04-30-10), using the helical overflow metering mechanism at three different operating speeds (4.0, 7.0, and 10.0 km h −1 ), simulated on an electronic bench. The granulated fertilizers were analyzed for particle size, density, angle of repose, and water content. On the other hand, the deposition data were subjected to descriptive statistics and frequency histograms. The angle of repose and water content did not differ between fertilizers, while the density difference was not significant. The granulated fertilizer 04-30-10 presented the most uniform particle size compared to the granulated fertilizer 04-14-08. The higher particle size uniformity was responsible for a more homogeneous deposition in the seed furrow for the granulated fertilizer 04-30-10 at a speed of 4.0 km h −1 , followed by 7.0 km h −1 .

Distribution of granulated fertilizers in dispensers mounted with single and double helicoidal

“…The inverse feeder behavior occurs in FG 2 , with the D 1 depositing a flow rate of 44% in the third class and decreasing to 2% in the sixth interval, resulting in the absence of flow in the final ones. It can be explained by inadequate supply to the helical dispenser, not filling it, leading to deposition failure (COSTA et al, 2022). In addition, the characteristics of density and granulometry of FG 2 can influence the depositions.…”

A method for verifying the uniformity in fertilizer dispenser flow

“…While GF1's linearity is ascribed to particle density traits, GF2's attributes delineate an optimal balance between density and speed, pinpointed at 7 km/h. The observed superior flow at three speeds for GF1 stems from the inherent ingredient properties (Costa et al, 2022).…”

“…Such advancements allow the industry to integrate the latest technologies effectively, ensuring innovation validation and accurate adaptation for both industry stakeholders and end consumers. likely due to the increased powder content in GF1, wherein minute particles accompany granules through the mechanism, thus enhancing the flow and, subsequently, fertilizer distribution (Costa et al, 2022).…”