granular fertilizers, seeds, potatoes, planting pitch, potato planting machine, seed tube, unit, kinematic parameters, speed, process, transportation, experiment.

Based on the analysis of fertilizer consumption rates for potato cultivation, a new design of a dosing coil-type device has been proposed for conditionally discrete application of granular mineral fertilizers  into potato nests. The structural and kinematic parameters of this device have been substantiated. Using the developed theoretical models, the limiting values of the rotation frequency were determined based on the condition of groove filling with fertilizers. The law of particle motion in the fertilizer tube was established, which made it  possible to determine the time it takes for a particle to fall to the bottom of the furrow. This, in turn, allowed for determining the lead angle of the fertilizer discharge phase relative to the phase of potato tuber release by the planting mechanism. The obtained parameter values made it possible to synchronize these two devices and  increase the efficiency of the potato planting technological process.

1. Andre Luiz Biscaia Ribeiro da Silva, Lincoln Zotarelli, Michael D. Dukes, Edzard van Santen, Senthold Asseng. Nitrogen fertilizer rate and timing of application for potato under different. Agricultural Water  Management 283 (2023) 108312. https://doi.org/10.1016/j.agwat.2023.108312. 

2. Babii A., Blashchak B. (2025) Study of the performance efficiency parameters of a potato planting machine. Scientific Journal of TNTU (Tern.), vol 118, no. 2, pp. 117–127. https://doi.org/10.33108/visnyk_tntu2025.02.117.  

3. Baranovsky V., Tesliuk V., Lukach V., Ikalchyk M., Kushnirenko A., Kulyk V. (2021) The results of root crop cleaner experimental research. Scientific Journal of TNTU (Tern.), vol. 101, no. 1, pp. 47–55. https://doi.org/10.33108/visnyk_tntu2021.01.047.  

4. Bulgakov V., Nikolaenko S., Adamchuk V., Z. and Olt J. (2018) Theory of impact interaction between potato bodies and rebounding conveyor. Agronomy Research. 16 (1). pp. 52–63. Doi: 10.15159/AR.18.037.  

5. Cai H., Hu B., Chen Y., Luo X., Wang J., Mao Z., Yuan C. (2022) Study of Patterns of Movement of Groups of Seed Potatoes in Conical Seed Box Based on the Dem-Model of the Process. Processes, 10, 363. 

https://doi.org/10.3390/pr10020363.  

6. Li J., Sun W., Wang H., Wang J., Simionescu P. A. (2024) An Integrated Potato-Planting Machine with Full-Film Mulching and Ridged Row Soil Covering. Agriculture, 14, 860. https://doi.org/10.3390/agriculture14060860.  

7. Lu J., Liu S., Wang Q., Liao M. (2024) Research on Device and Sensing Technology for Precision Seeding of Potato. Agriculture, 14, 2146. https://doi.org/10.3390/agriculture14122146.  

8. Lyu Jinqing, Yang Xiaohan, Feng Xue, et al. (2020) Design and experiment of sowing depth control device of potato planter[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 36 (12): 13–21. (in Chinese with English abstract). Doi：10.11975/j.issn.1002-6819.2020.12.002.  

9. Minghui Cheng, Haidong Wang, Fucang Zhang, Xiukang Wang, Zhenqi Liao, Shaohui Zhang, Qiliang Yang. Junliang FanEffects of irrigation and fertilization regimes on tuber yield, water-nutrient uptake and productivity of potato under drip fertigation in sandy regions of northern China. Agricultural Water Management 287 (2023) 108459. https://doi.org/10.1016/j.agwat.2023.108459.  

10. Niu K., Fang X. F., Liu Y. C., Lü C, X., Yuan Y. W. (2017) Optimized design and performance evaluation of an electric cup-chain potato metering device. Int J Agric & Biol Eng, 10 (2): 36–43.  

11. Vozhehova R., Balashova G., Boiarkina L., Yuzyuk O., Yuzyuk S., Kotov B. and Kotova O. (2021) The efficiency of different moisture and nutrition conditions in early potato growing under drip  irrigation in southern Ukraine. Journal of Agricultural Sciences (Belgrade), vol. 66, no. 1, pp. 1–16. https://doi.org/10.2298/JAS2101001V. 

12. Sun W., Liu X. L., Zhang H. (2017) Design of potato fertilization, sowing, ridge and full film mulching, seed row mulching. Trans. CSAE, 20, 14–22. 

13. Wang G. P, Yang X. P., Sun W., Liu Y., Wang C. J., Zhang H., et al. (2024) Potato seed-metering monitoring and improved miss-seeding catching-up compensation control system using spatial capacitance sensor. Int J Agric & Biol Eng, 17 (4):255–264. 

14. Yogesh Kumar Kosariya and Shambhu Singh. (2022) Design and development of single row auto-feed potato planter cum fertilizer applicator for small farmers. The Pharma Innovation Journal, 11(10S): 1455–1463. Doi: 10.22271/tpi.2022.v11.i10Sr.16347.  

15. Zhang H., Zhao W. Y., Sun W., Wang G. P., Liu X. L., Feng B., et al. (2022) Potato planter test bed based on capacitive precision seed-monitoring and miss-seeding compensation system. Int J Agric & Biol Eng, 15(6): 104–112. 

16. Zheng Z., Zhao H., Liu Z., He J., Liu W. (2021) Research Progress and Development of Mechanized Potato Planters: A Review. Agriculture, 11, 521. https://doi.org/10.3390/agriculture11060521. 

17. Zhou B., Li Y., Zhang C., Cao L., Li C., Xie S., Niu Q. (2022) Potato Planter and Planting Technology: A Review of Recent Developments. Agriculture, 12, 1600. https:// doi.org/10.3390/agriculture12101600.  

18. Babiy A. V., Blaschak B. O., Valyashek V. B. Method of planting potato seeds during planting. Utility model patent 158112, Ukraine. MPK A01C 23/02 (2006.01). No. u2024 01975; appl. 15.04.2024; publ. 01.01.2025, Bull.1. (In Ukrainian). 

19. Blaschak B. O., Babiy A. V. (2024) Justification of individual design and technological parameters of a potato planting machine. Central Ukrainian Scientific Bulletin. Technical Sciences, vol. 1, iss. 10 (41), рр. 192–199. (In Ukrainian)]. https://doi.org/10.32515/2664-262X.2024.10(41).1.192-199. 

20. Volskyi V. A., Kotsiubanskyi R. V., Tretiak V. M., Bonchyk V. S. (2025) Analysis of the use of electric drive in seed drill metering elements. Podilskyi visnyk: agriculture, engineering, economics. Technical Sciences, vol. (46), pp. 220–227. (In Ukrainian). https://doi.org/10.37406/2706-9052-2025-1.32. 

21. Didukh V. F. Tarasyuk V. V, Tarasyuk D. V. (2020) Research on passive type potato planting apparatus. Collection of scientific articles “Agricultural machines”, issue Lutsk, no. 44, pp. 41–45. (In Ukrainian). 

22. Myzyuk A. I. (2022) Mathematical substantiation of the interaction of a tuber with a spoon conveyor of a potato planter. Bulletin of the Khmelnytsky National University, no. 4, (311), pp. 164–167. (In Ukrainian). https://doi.org/10.31891/2307-5732-2022-311-4-164-167. 

23. Broshchak I. S., Pyda S. V., Huivan M. D., Khomiak I. V. (2018)Practical guide for potato growers (2nd edition, revised and supplemented) (Methodological Recommendations). Chernivtsi, 70 p. (In Ukrainian). 

24. Rutkevych V., Ostapenko V., & Kazhuro M. (2024) Theoretical study of the operating conditions of metering working bodies of a seeding complex for differentiated fertilizer application. Herald of Khmelnytskyi National University. Technical Sciences, 339 (4), pp. 91–96. (In Ukrainian). https://doi.org/10.31891/2307-5732-2024-339-4-14. 

1. Andre Luiz Biscaia Ribeiro da Silva, Lincoln Zotarelli, Michael D. Dukes, Edzard van Santen, Senthold Asseng. Nitrogen fertilizer rate and timing of application for potato under different. Agricultural Water  Management 283 (2023) 108312. https://doi.org/10.1016/j.agwat.2023.108312. 

2. Babii A., Blashchak B. (2025) Study of the performance efficiency parameters of a potato planting machine. Scientific Journal of TNTU (Tern.), vol 118, no. 2, pp. 117–127. https://doi.org/10.33108/visnyk_tntu2025.02.117.  

3. Baranovsky V., Tesliuk V., Lukach V., Ikalchyk M., Kushnirenko A., Kulyk V. (2021) The results of root crop cleaner experimental research. Scientific Journal of TNTU (Tern.), vol. 101, no. 1, pp. 47–55. https://doi.org/10.33108/visnyk_tntu2021.01.047.  

4. Bulgakov V., Nikolaenko S., Adamchuk V., Z. and Olt J. (2018) Theory of impact interaction between potato bodies and rebounding conveyor. Agronomy Research. 16 (1). pp. 52–63. Doi: 10.15159/AR.18.037.  

5. Cai H., Hu B., Chen Y., Luo X., Wang J., Mao Z., Yuan C. (2022) Study of Patterns of Movement of Groups of Seed Potatoes in Conical Seed Box Based on the Dem-Model of the Process. Processes, 10, 363. 

https://doi.org/10.3390/pr10020363.  

6. Li J., Sun W., Wang H., Wang J., Simionescu P. A. (2024) An Integrated Potato-Planting Machine with Full-Film Mulching and Ridged Row Soil Covering. Agriculture, 14, 860. https://doi.org/10.3390/agriculture14060860.  

7. Lu J., Liu S., Wang Q., Liao M. (2024) Research on Device and Sensing Technology for Precision Seeding of Potato. Agriculture, 14, 2146. https://doi.org/10.3390/agriculture14122146.  

8. Lyu Jinqing, Yang Xiaohan, Feng Xue, et al. (2020) Design and experiment of sowing depth control device of potato planter[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 36 (12): 13–21. (in Chinese with English abstract). Doi：10.11975/j.issn.1002-6819.2020.12.002.  

9. Minghui Cheng, Haidong Wang, Fucang Zhang, Xiukang Wang, Zhenqi Liao, Shaohui Zhang, Qiliang Yang. Junliang FanEffects of irrigation and fertilization regimes on tuber yield, water-nutrient uptake and productivity of potato under drip fertigation in sandy regions of northern China. Agricultural Water Management 287 (2023) 108459. https://doi.org/10.1016/j.agwat.2023.108459.  

10. Niu K., Fang X. F., Liu Y. C., Lü C, X., Yuan Y. W. (2017) Optimized design and performance evaluation of an electric cup-chain potato metering device. Int J Agric & Biol Eng, 10 (2): 36–43.  

11. Vozhehova R., Balashova G., Boiarkina L., Yuzyuk O., Yuzyuk S., Kotov B. and Kotova O. (2021) The efficiency of different moisture and nutrition conditions in early potato growing under drip  irrigation in southern Ukraine. Journal of Agricultural Sciences (Belgrade), vol. 66, no. 1, pp. 1–16. https://doi.org/10.2298/JAS2101001V. 

12. Sun W., Liu X. L., Zhang H. (2017) Design of potato fertilization, sowing, ridge and full film mulching, seed row mulching. Trans. CSAE, 20, 14–22. 

13. Wang G. P, Yang X. P., Sun W., Liu Y., Wang C. J., Zhang H., et al. (2024) Potato seed-metering monitoring and improved miss-seeding catching-up compensation control system using spatial capacitance sensor. Int J Agric & Biol Eng, 17 (4):255–264. 

14. Yogesh Kumar Kosariya and Shambhu Singh. (2022) Design and development of single row auto-feed potato planter cum fertilizer applicator for small farmers. The Pharma Innovation Journal, 11(10S): 1455–1463. Doi: 10.22271/tpi.2022.v11.i10Sr.16347.  

15. Zhang H., Zhao W. Y., Sun W., Wang G. P., Liu X. L., Feng B., et al. (2022) Potato planter test bed based on capacitive precision seed-monitoring and miss-seeding compensation system. Int J Agric & Biol Eng, 15(6): 104–112. 

16. Zheng Z., Zhao H., Liu Z., He J., Liu W. (2021) Research Progress and Development of Mechanized Potato Planters: A Review. Agriculture, 11, 521. https://doi.org/10.3390/agriculture11060521. 

17. Zhou B., Li Y., Zhang C., Cao L., Li C., Xie S., Niu Q. (2022) Potato Planter and Planting Technology: A Review of Recent Developments. Agriculture, 12, 1600. https:// doi.org/10.3390/agriculture12101600.  

18. Babiy A. V., Blaschak B. O., Valyashek V. B. Method of planting potato seeds during planting. Utility model patent 158112, Ukraine. MPK A01C 23/02 (2006.01). No. u2024 01975; appl. 15.04.2024; publ. 01.01.2025, Bull.1. (In Ukrainian). 

19. Blaschak B. O., Babiy A. V. (2024) Justification of individual design and technological parameters of a potato planting machine. Central Ukrainian Scientific Bulletin. Technical Sciences, vol. 1, iss. 10 (41), рр. 192–199. (In Ukrainian)]. https://doi.org/10.32515/2664-262X.2024.10(41).1.192-199. 

20. Volskyi V. A., Kotsiubanskyi R. V., Tretiak V. M., Bonchyk V. S. (2025) Analysis of the use of electric drive in seed drill metering elements. Podilskyi visnyk: agriculture, engineering, economics. Technical Sciences, vol. (46), pp. 220–227. (In Ukrainian). https://doi.org/10.37406/2706-9052-2025-1.32. 

21. Didukh V. F. Tarasyuk V. V, Tarasyuk D. V. (2020) Research on passive type potato planting apparatus. Collection of scientific articles “Agricultural machines”, issue Lutsk, no. 44, pp. 41–45. (In Ukrainian). 

22. Myzyuk A. I. (2022) Mathematical substantiation of the interaction of a tuber with a spoon conveyor of a potato planter. Bulletin of the Khmelnytsky National University, no. 4, (311), pp. 164–167. (In Ukrainian). https://doi.org/10.31891/2307-5732-2022-311-4-164-167. 

23. Broshchak I. S., Pyda S. V., Huivan M. D., Khomiak I. V. (2018)Practical guide for potato growers (2nd edition, revised and supplemented) (Methodological Recommendations). Chernivtsi, 70 p. (In Ukrainian). 

24. Rutkevych V., Ostapenko V., & Kazhuro M. (2024) Theoretical study of the operating conditions of metering working bodies of a seeding complex for differentiated fertilizer application. Herald of Khmelnytskyi National University. Technical Sciences, 339 (4), pp. 91–96. (In Ukrainian). https://doi.org/10.31891/2307-5732-2024-339-4-14.