<abstract xmlns="http://www.w3.org/1999/xhtml">

Liquid mineral fertilizers (LMF) have a high sorption ability, can be metered precisely, and the intra-soil application of LMF is relevant. However, the agricultural equipment for this process that introduces the liquid fertilizer under processed soil layer in the form of a wide band has not yet been proposed. The purpose of the study is to evaluate the performance of a 102 mm wide rectangular discharge microchannel of the proposed soil tillage knife designed for deep tillage and intra-soil application of liquid fertilizers and to study the influence of the microchannel length (<italic>L</italic>) and slot height (<italic>h</italic>) on the uniformity of discharge. Solidworks Flow Simulation® was used during investigations, and simulation results were compared with experiment results. It has been determined that the effective slot height for water discharge at <italic>V</italic><italic>i</italic> = 3–4 m·s−1 is 0.1 (±0.01) mm, an effective microchannel length is 20 (±2) mm, and the influence of <italic>L</italic> depends on <italic>h</italic>. Sheet thickness will not change at a distance of 10–15 mm (<italic>b</italic>). Fall angle is 0–5°. In conclusion, the proposed discharge microchannel with asymmetrical feed is applicable for intra-soil application of LMF, and the surface tension effect has to be considered. A way to enhancing the sheet uniformity is the geometrical modification of feed channel shape.
</abstract>

Liquid mineral fertilizers (LMF) have a high sorption ability, can be metered precisely, and the intra-soil application of LMF is relevant. However, the agricultural equipment for this process that introduces the liquid fertilizer under processed soil layer in the form of a wide band has not yet been proposed. The purpose of the study is to evaluate the performance of a 102 mm wide rectangular discharge microchannel of the proposed soil tillage knife designed for deep tillage and intra-soil application of liquid fertilizers and to study the influence of the microchannel length (L) and slot height (h) on the uniformity of discharge. Solidworks Flow Simulation® was used during investigations, and simulation results were compared with experiment results. It has been determined that the effective slot height for water discharge at Vi = 3–4 m·s−1 is 0.1 (±0.01) mm, an effective microchannel length is 20 (±2) mm, and the influence of L depends on h. Sheet thickness will not change at a distance of 10–15 mm (b). Fall angle is 0–5°. In conclusion, the proposed discharge microchannel with asymmetrical feed is applicable for intra-soil application of LMF, and the surface tension effect has to be considered. A way to enhancing the sheet uniformity is the geometrical modification of feed channel shape.

Performance Evaluation of Tillage Knife Discharge Microchannel

S. Seifullin Kazakh Agro Technical University

Northwest A & F University, College of Water Resources and Architectural Engineering

Acta Technologica Agriculturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Performance Evaluation of Tillage Knife Discharge Microchannel"}

Liquid mineral fertilizers (LMF) have a high sorption ability, can be metered precisely, and the intra-soil application of LMF is relevant. However, the...

Performance Evaluation of Tillage Knife Discharge Microchannel

Published Online: Nov 01, 2022

Page range: 169 - 175

DOI: https://doi.org/10.2478/ata-2022-0025

Keywords
chisel plough, discharge uniformity, flow simulation, mineral fertilizer, slot distributor, soil cultivation

© 2022 Khozhakeldi Tanbayev et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Performance Evaluation of Tillage Knife Discharge Microchannel

Published Online: Nov 01, 2022

Page range: 169 - 175

DOI: https://doi.org/10.2478/ata-2022-0025

Keywordschisel plough, discharge uniformity, flow simulation, mineral fertilizer, slot distributor, soil cultivation

© 2022 Khozhakeldi Tanbayev et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
chisel plough, discharge uniformity, flow simulation, mineral fertilizer, slot distributor, soil cultivation