Mathematical Model of Uniform Cereal Crops Seeding Using a Double-Disk Coulter

Abstract

The paper provided presents a new design of two-disk wide-row coulter that ensures uniform distribution of seeds to an even bed at the furrow bottom, as well as preserving of optimal distances between the seeds. Seeds fall from the seed tube of coil sowing apparatus onto a metal distribution plate with staggeringly arranged metal pins, which distribute the seeds to furrow bottom surface in a form of separate strips. To substantiate the kinematic and constructive parameters of proposed coulter design, a mathematical model for transport of seeds along the surface of a distribution plate was developed and the Cauchy problem for a system of the second-order quasi-linear differential equations was solved by the finite difference methods using embedded software procedures in mathematical software packages (Mathcad, Maple, etc.). The finite-difference method implementation was carried out using computer software allowing the determination of coordinates of seeds and, if necessary, changing of direction of their movement by adjusting the coulter operation to improve the distribution of seeds to soil in order to reduce the injury to them, which ultimately can contribute to an increased yield. Coverage of the plate surface and distribution pins with a rubber material can also contribute to a significant reduction in seed injury during sowing.

Theoretical prerequisites for improving durability of fixed rolling bearing joints restored with anaerobic

“…Based on the chemical [1,2], to obtain a strong adhesive bond, the materials must interact with each other with the formation of covalent chemical bonds across the interface.…”

Substantiation of the Impact Interaction of Grain Crop Seeds and Their Damage During Movement on the Surface of the Oscillating Separator’s Cylindrical Screen

“…Аналіз останніх досліджень і публікацій. Дослідження [1,2] свідчать, що технічні засоби і технологічні лінії, не сприяють підготовленню насіння високої якості згідно існуючих вимог державних стандартів та потреб забезпечення великої кількості населення необхідними продуктами харчування, тому що в значній мірі деформують та травмують зернівки під час технологічних процесів.…”

Experimental Field Tests of the Suitability of a New Seeder for the Soils of Northern Kazakhstan

“…Although significant research has been conducted on the development of cultivation machines [25][26][27], unfortunately, there is a large gap in terms of the research into the development of versatile seed drills with automatically variable designs and the adjustment of their technological parameters. These can be used in different climatic zones with different soil characteristics [28][29][30]. An analysis of the scientific literature shows an urgent need for the development of new devices designed for seed sowing [31][32][33].…”