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Prethodno priopćenje
https://doi.org/10.17559/TV-20190716092804

Partial Differential Equations for Cereal Seeds Distribution

Kurt Tomantschger ; University of Technology Graz, Faculty of Mathematics, Physics and Geodesy, Steyrergasse 30, 8010 Graz, Austria
Vjekoslav Tadić   ORCID icon orcid.org/0000-0002-2307-9255 ; University of J. J. Strossmayer in Osijek, Faculty of Agrobiotehnical Sciences Osijek, Vladimira Preloga 1, 31000 Osijek, Croatia

Puni tekst: engleski, pdf (520 KB) str. 624-628 preuzimanja: 24* citiraj
APA 6th Edition
Tomantschger, K. i Tadić, V. (2021). Partial Differential Equations for Cereal Seeds Distribution. Tehnički vjesnik, 28 (2), 624-628. https://doi.org/10.17559/TV-20190716092804
MLA 8th Edition
Tomantschger, Kurt i Vjekoslav Tadić. "Partial Differential Equations for Cereal Seeds Distribution." Tehnički vjesnik, vol. 28, br. 2, 2021, str. 624-628. https://doi.org/10.17559/TV-20190716092804. Citirano 12.05.2021.
Chicago 17th Edition
Tomantschger, Kurt i Vjekoslav Tadić. "Partial Differential Equations for Cereal Seeds Distribution." Tehnički vjesnik 28, br. 2 (2021): 624-628. https://doi.org/10.17559/TV-20190716092804
Harvard
Tomantschger, K., i Tadić, V. (2021). 'Partial Differential Equations for Cereal Seeds Distribution', Tehnički vjesnik, 28(2), str. 624-628. https://doi.org/10.17559/TV-20190716092804
Vancouver
Tomantschger K, Tadić V. Partial Differential Equations for Cereal Seeds Distribution. Tehnički vjesnik [Internet]. 2021 [pristupljeno 12.05.2021.];28(2):624-628. https://doi.org/10.17559/TV-20190716092804
IEEE
K. Tomantschger i V. Tadić, "Partial Differential Equations for Cereal Seeds Distribution", Tehnički vjesnik, vol.28, br. 2, str. 624-628, 2021. [Online]. https://doi.org/10.17559/TV-20190716092804

Sažetak
During the recent years all crop species achieved the best possible field distribution so a high yield is to be expected. In this paper the solutions of two different diffusion equations are determined, which describe the optimal distribution of cereal grains over a field. Therefore, there are two different partial differential equations of cereal seed distribution-distinction is made between the longitudinal spacing (seeds in a row), and transverse distance (between two rows), as well as the sowing depth. In particular, closed forms of solutions are derived in each case. Although the result of the diffusion equation with respect to the distribution of the lateral seed distance of two adjacent rows is already known, a new solving method is presented in this paper. By this method, the partial differential equation is reduced to an ordinary one, which is easier to solve. In this paper it is shown that the distribution of lateral resp. longitudinal and in-depth wheat seed distances is achieved by a normal Gauss function resp. a log-normal function. Furthermore, it is demonstrated that the fitting functions of the best experimental results of wheat seeding distributions are particular solutions of the individual differential equations. Normal Gauss function describes lateral distribution with R2 = 0.9325; RSME = 1.2450, and log-normal function describes longitudinal distribution with R2 = 0.9380; RSME = 1.4696 as well as depth distribution with R2 = 0.9225; RSME = 2.0187.

Ključne riječi
analytical solutions; cereal seeds; diffusion equations; partial differential equation; probability density function

Hrčak ID: 255879

URI
https://hrcak.srce.hr/255879

Posjeta: 52 *