Double Disc Colter for a Zero-Till Seeder Simultaneously Applying Granular Fertilizers and Wheat Seeds

Abstract

The application method of granular fertilizers and wheat seeds depends on the colter design and parameters. In this research, a new double disc colter is studied to apply the wheat seeds to the horizontal band 12 cm in width and apply granular fertilizers deeper 2 cm than the wheat seed level precisely to the middle of the band. Applying granular fertilizers and wheat seeds at different levels increases the granular fertilizer dose without harm to the wheat seeds. Furthermore, applying high doses of wheat seeds to the horizontal band decreases the competition between the seeds and suppresses the weeds. Therefore, preparing a plain seedbed after applying the fertilizers and distributing wheat seeds to the horizontal band was the research objective. The comparison experiments of the base and designed double disc colters were provided in the soil bin determining the horizontal and vertical forces and the placement of the fertilizers and seeds. The discrete element method (DEM) was used to track the soil particle behavior interacting with the double-disc colter. The simulation results and actual experiment results were satisfactory when the AB length of the wing orifice was 60 mm.

Optimal Design and Discrete Element Method Model Development of the Acute Angle Hoe Opener for No-Till System

“…It is crucial to determine the ideal seeding density to prevent rivalry among the seeds. Generally, the method of depositing seeds in a horizontal band while placing granular fertilizer in a narrow strip beneath it entails the use of two separate hoe openers [41][42][43]. Taking into account the considerations mentioned earlier, the primary research objective was to design an innovative single hoe opener capable of simultaneously depositing seeds in a horizontal band while placing granular fertilizer in a narrow band beneath the seeds.…”