Amelioratory plowing of peat bogs and substantiation of the basic parameters of a double-cut plow

Drained peat soils in Belarus occupy 11.3 % of agricultural land. These soils lost their genetic traits on the area of almost 260 thousand hectares, and moved into the category of anthropogenically transformed, over 190 thousand hectares of those – into the category of degraded. The most important condition for improving the properties of low-ash peat soils is an increase of ash elements level – up to 50–70 % in the plowing layer. The anthropogenically formed layer-mixed culture of soil profile with deep reclamation plowing method corresponds to this to the fullest extent. Its use is important on shallow peatlands that quickly lose their organic layer. It has been determined that the depth of such plowing is determined both by the thickness of peat bog and by the thickness of plowed mineral soil (sand or sandy loam). Based on the obtained analytical expressions, analysis of process layouts for formation of new soil profile by the plow, taking into account availability of peat soil areas according to deposit capacity, feasibility of using two types of special plows is substantiated: double-cut mounted type with plowing depth of 50–100 cm and single-cut trailed type with plowing depth of 90–150 cm. Technologically rational is plow operation according to layout with undercut equal to the width of sandy layer in sub-plowing horizon. At the same time, the interval of rational values of structural width of double-cut plow grip (on the II cut body) b_k = 50–67 cm, and the width of plow grip shall not exceed 100 cm. Ratio of its actual value to the accepted design width of the bodies is in the range of (5 : 4)–(2 : 1) depending on agrotechnical requirements. The designed PTN-0.9 double-cut plow for deep amelioratory plowing has passed acceptance tests and is recommended for serial production. The result of the study is theory of dump plowing. The results allow for development of special double-cut plows for deep amelioratory treatment of shallow peat bogs, which ensures their preservation during agricultural use.

1. Skoropanov S. G., Lishtvan I. I., Bambalov N. N. Issues of evolution of peat soils. Tezisy dokladov Respublikanskoi konferentsii po problemam mineralizatsii i erozii torfa (14–15 noyabrya 1978 g.) [Abstracts of the Republican conference on the problems of peat mineralization and erosion (November 14–15, 1978)]. Minsk, 1978, pp. 4 (in Russian).

2. Avramenko N. M. Transformation of drained peat soils in Polesye region. Melioratsiya [Reclamation], 2017, no. 4 (82), pp. 12–15 (in Russian).

3. Efimov V. N. Peat soils and their fertility. Leningrad, Agropromizdat Publ., 1986. 264 p. (in Russian).

4. Belkovskii V. I., Goroshko V. M. Fertility and use of peat soils. Minsk, Uradzhai Publ., 1991. 295 p. (in Russian).

5. Avramenko N. M. Experimental studies of the peat sediment with the reclamation system “POMS” in Luninets district. Melioratsiya [Reclamation], 2018, no. 4 (86), pp. 50–62 (in Russian).

6. Emel’yanova I. M., Malysheva G. A., Popova T. P. Increasing the productivity of reclaimed lands of the Non-Black Soil Zone. Leningrad, Agropromizdat Publ., 1987. 255 p. (in Russian).

7. Belkovskii V. I., Kazakov V. S. Structural reclamation of peat bog soils. Moscow, Kolos Publ., 1973. 64 p. (in Russian).

8. Kurchevskii S. M., Podnebesnaya E. I. Comparison making sand and clay on efficiency and conservation of peat soils. Agrokhimicheskii vestnik = Agrochemical Herald, 2013, no. 2, pp. 27–28 (in Russian).

9. Kurchevskii S. M., Vinogradov D. V., Shchur A. V. Influence of mineral ground different doses on agrochemical indexes and peat soil efficiency. Vestnik Ryazanskogo gosudarstvennogo agrotekhnologicheskogo universiteta im. P. A. Kostycheva = Herald of Ryazan State Agrotechnological University Named after P. A. Kostychev, 2015, no. 1 (25), pp. 27–31 (in Russian).

10. Pronevich V. A. Justification of structural reclamation of peat soils for organic agricultural production. Agroekologіchnii zhurnal = Agroecological Journal, 2012, no. 4, pp. 48–54 (in Ukrainian).

11. Eggelsmann R. Dränanleitung : für Landbau, Ingenieurbau und Landschaftsbau. Verlag, Wasser und Boden, 1973. 332 p. (in German).

12. Kuntze H. Meliorationsbeispiel sandmischkultur [Reclamation example of a mixed crop on sand]. Landbauforschung Völkenrode : Sonderheft = FAL agricultural research : special issue, 1974, spec. iss. 24, pp. 31–46 (in German).

13. Severnev M. M., Turetskii R. L., Kazakevich P. P. Sustainable increase in crop yield and the direction of scientific and technological progress in soil cultivation. Materialy godichnogo sobraniya Zapadnogo otdeleniya VASKhNIL (10 fevralya 1983g., g. Tallin) [Proceedings of the annual meeting of the Western branch of VASKhNIL (February 10, 1983, Tallin)]. Tallin, 1983, pp. 61–65 (in Russian).

14. Kazakevich P. P. Improvement of agro-ecological properties of soils on the basis of development of special mould-board ploughs. PhD Thesis. Minsk, 1998. 277 p. (in Russian).

15. Severnev M. M., Kazakevich P. P., Belkovskii V. I. Creation of new soil on the depleted peatlands. Melioratsiya i urozhai [Land Reclamation and Harvest], 1986, no. 1, pp. 26–28 (in Russian).

16. Belkovskii V. I., Lashkevich I. P. Improvement of shallow peatlands. Zemledelie [Arable Farming], 1981, no. 5, pp. 49–53 (in Russian).

17. Timoshenko V. Ya., Matsepuro O. M., Kazakevich P. P. Mechanization of peatland processing. Minsk, Uradzhai Publ., 1988. 80 p. (in Russian).

18. Avramenko N. M., Bambalov N. N., Yuzupanov A. V. The technology of using of anthropogenically transformed peat soils according to the method of sand-mixed culture in the conditions of Polesye. Melioratsiya. Sovremennye metodiki, innovatsii i opyt prakticheskogo primeneniya: materialy Mezhdunarodnoi nauchno-prakticheskoi konferentsii (Minsk, 19–20 oktyabrya 2017 g.) [Land reclamation. Modern methods, innovations and practical experience: proceedings of the International scientific and practical conference (Minsk, October 19–20, 2017)]. Minsk, 2017, pp. 150–162 (in Russian).

19. Bambalov N. N., Smirnova V. V. Mineralization of the organic matter of peat soil in the conditions of graded and mixed culture. Sovremennye problemy povysheniya plodorodiya pochv i zashchity ikh ot degradatsii: materialy mezhdunarodnoi nauchno-prakticheskoi konferentsii, 27–29 iyunya 2006 g., Minsk [Present-day problems of soil fertility increase and their protection from degradation: proceedings of the international scientific-practical conference, June 27–29, 2006, Minsk]. Minsk, 2006, pp. 27–29 (in Russian).

20. Bambalov N. N., Avramenko N. M. Conservation and improvement of Polesye peat soils in course of agricultural use under conditions of German sand-mix culture. Problemy ratsional’nogo ispol’zovaniya prirodnykh resursov i ustoichivoe razvitie Poles’ya: sbornik dokladov Mezhdunarodnoi nauchnoi konferentsii (Minsk, 14–17 sentyabrya 2016 g.) [Problems of rational use of natural resources and sustainable development of Polesye: a collection of papers of the International scientific conference (Minsk, September 14–17, 2016)]. Minsk, 2016, vol. 1, pp. 16–20 (in Russian).

21. Meerovskii A. S., Shkabaro L. S. Deep reclamation plowing on peat soils. Main aspects. Melioratsiya [Reclamation], 2016, no. 1 (75), pp. 7–10 (in Russian).

22. Belkovskii V. I. Structural reclamation of shallow peatlands. Minsk, Uradzhai Publ., 1985. 88 p. (in Russian).

23. Turetskii R. L., Raikevich N. G., Kazakevich P. P. A double-depth plough to improve the properties of peat soils. Gidrotekhnika i melioratsiya [Hydrotechnics and Land Reclamation], 1984, no. 1, pp. 42–46 (in Russian).

24. Turetskii R. L. Cutting of reclaimed soils and intensification of the working processes of machines for draining and developing land in the Non-Black Soil Zone. PhD Thesis. Minsk, 1981. 427 p. (in Russian).

25. Matsepuro M. E., Nazarov S. I. Forces affecting the plough body during plowing of swamp-peat soils. Voprosy zemledel’cheskoi mekhaniki [Issues of Arable Farming Mechanics]. Minsk, 1959, vol. 2, pp. 135–163 (in Russian).

26. Meerovskii A. S., Shkabaro L. S. Design of high performance unit for reclamation plowing of peat soils. Melioratsiya [Reclamation], 2018, no. 3 (85), pp. 74–77 (in Russian).