Features of the formation of moisture contours during surface and intra-surface laying of drip tape when growing potatoes

The purpose of the study: to compare the methods of surface and intra-soil drip tape laying, to analyze the advantages and disadvantages of both technologies, to compare the traction resistances that occur during surface and intra-soil drip tape laying. Based on the results of the research, to propose a rational method of laying drip tape, which allows the most rational use of irrigation water and does not require increased energy consumption. Research methods. To compare the surface and intra-soil methods of drip tape laying, the traction resistances that occur during drip tape laying were studied using the above methods. The data of traction resistances arising from both methods of drip tape laying were also obtained in laboratory conditions and compared with the results of theoretical studies. The geometric parameters of the moisture contour in both methods of laying drip tape were investigated, an original technique was developed for this, and the data obtained were also checked in laboratory conditions. Research results. The data obtained allow us to conclude that during intra-soil laying of drip tape, if the laying depth does not exceed 0.1 m, there is no significant increase in traction resistances, compared to surface laying. At the same time, the resulting shape of the irrigation circuit better covers the root space, reducing the zone of surface wetting, and, consequently, losses due to evaporation of irrigation water. Findings. The intra-soil method of laying drip tape can be recommended as the most promising, as it allows you to significantly save irrigation water without leading to an increase in traction resistances with other advantages of subsoil laying: the straight-line arrangement of the drip tape, with minimal deviations from the horizontal, significantly reduces head loss in the tape; The intra-soil location does not allow water to overheat, and, consequently, its detrimental effect on the root system, in the hot season.

1. Vasilyeva N.A. The role of reclamation in increasing the productivity of agricultural lands using the example of the Moscow region / N.A. Vasilyeva, L.V. Kireycheva // Prirodoobustrojstvo. 2023. No. 3. P. 6-14. – DOI 10.26897/1997-6011-2023-3-6-14

2. Dubenok N.N. Prospects and social significance ofthe development of land reclamation in the Moscow region / N.N. Dubenok, G.V. Olgarenko, R.V. Kalinichenko // Melioration and water management. 2022. No. 5. P. 6-11.

3. Olgarenko G.V. Prospects for import substitution and development of technical irrigation means for the land reclamation development program in the Russian Federation / G.V. Olgarenko, S.S. Turapin // Melioration and water management. 2016. No. 2. P. 35-39.

4. Pchelkin V.V. Water balance of the aeration zone and calculation layer when irrigating potatoes on sod-podzolic soils / V.V. Pchelkin, V.O. Gerasimov, O.M. Kuzina, M.I. Novikova // Scientific life. 2018. No. 10. P. 49-56.

5. Yashin V.M. Justification of plant requirements for the regulation of soil water regime and its control / V.M. Yashin, I.V. Glazunova // Prirodoobustrojstvo. 2022. No. 5. P. 15-21. – DOI 10.26897/1997-6011-2022-5-15-21

6. Zhalnin E.V. On the fundamental nature of agricultural mechanics // Bulletin of the federal state educational institution of higher professional education “Moscow State Agricultural Engineering University named after V.P. Goryachkin”, 2017. No. 6(82) P. 10-14.

7. Abdulmazhidov Kh.A. Integrated design and strength calculations of environmental engineering machine structures in the Inventor Pro system / Kh.A. Abdulmazhidov, A.S. Matveev // Bulletin of the Federal state educational institution of higher professional education “Moscow State Agricultural Engineering University named after V.P. Goryachkin”. 2016. No. 2. P. 40-46.

8. Karpov M.V. Study ofthe effectiveness and economic assessment ofthe use ofthe developed potato planting machine / M.V. Karpov, G.E. Shardina, A.A. Zhizdyuk, A.G. Shapovalov // Scientific life. 2018. No. 3. P. 19-27.

9. Martynova N.B. Drip irrigation of potatoes using mechanized laying of drip tape / N.B. Martynova // Melioration and water management. 2021. No. 3. P. 26-30.

10. Utility model patent No. 208061 U1 Russian Federation, IPC A01G 25/06. Device for laying drip tape: No. 2021128300: application. 09/28/2021: publ. 12/01/2021 / A.Yu. Korneev V.I. Balabanov, N.B. Martynova, L.A. Zhu ravleva.

11. Makani M.N. Irrigation method and harvest time affect storage quality of two early-season, tablestock potato (Solanum tuberosum L.) cultivars /M.N. Makani S.A. Sargent, L. Zotarelli, D.J. Huber, C.A. Sims // Scientia Horticulturae. 2015. No. 197, P. 428-433.

12. Balabanov V.I. Calculation of the parameters of the humidification circuit for drip irrigation of potatoes / V.I. Balabanov, N.B. Martynova, Kh.A. Abdulmazhidov // Prirodoobustrojstvo. 2022. No. 2. P. 41-47. DOI 10.26897/1997-6011-2022-2-41-47.