Purpose: to determine effects of grain-fodder and vegetable crop rotation on the agrophysical properties of chernozems irrigated with low-mineralized water, in comparison with the non-irrigated counterpart.
Materials and methods. The studies were carried out in Neklinovsky district Rostov region on ordinary chernozems in grain-fodder crop rotations, non-irrigated (without irrigation) and irrigated with annual irrigation rates of 1500–2500 cubic m/ha and in vegetable crop rotation with annual irrigation rates of 3000–4000 cubic m/ha. The source of irrigation is the Miussky estuary with low-mineralized water. Soil samples were taken in autumn after crop rotations, their granulometric texture, aggregate water stability and humus were determined. In profile pits - the soil bulk density. The selection of soil samples, their analysis and evaluation were carried out according to generally accepted methods.
Results. The deterioration of water-physical properties was most clearly manifested during long-term irrigation with low-mineralized water on a plot with vegetable crop rotations, where irrigation rates were more than 3500 cubic m/ha. The arable land of such chernozem is highly compacted (1.41 t/cubic m), the bulk density 40 cm deeper is 1.45–1.47 t/cubic m. By granulometric texture, the upper soil layers acquired the properties of medium loamy soils due to the leaching of clay particles. There are practically no water-stable aggregates along the soil profile (about 10 %). Soil porosity deteriorated to excessively low values.
Conclusions. Studies have shown that the higher the water load in crop rotations, the more the negative agrophysical properties of chernozems progress, especially when irrigated with low-mineralized waters.
doi: 10.31774/2712-9357-2023-13-1-150-164
chernozem, irrigation, crop rotations, land reclamation, properties
Shalashova O. Yu., Pjatnicynа E. V., Rubtsov I. P. The role of crop rotation in maintaining agrophysical properties of chernozem irrigated with low-mineralized water. Land Reclamation and Hydraulic Engineering. 2023;13(1):150–164. (In Russ.). https://doi.org/10.31774/2712-9357-2023-13-1-150-164.
1. Konomchuk V.V., Shtyrkhunov V.D., Blagoveshchensky G.V., Timoshenko S.M., Nazarova T.O., 2020. Effektivnost' i optimizatsiya sistem udobreniya v sevooborotakh s raznoy doley mnogoletnikh trav na dernovo-podzolistoy pochve tsentra Nechernozemnoy zony Rossii [Efficiency and optimization of fertilizer systems in crops rotations with different performance of perennial grasses on the sod-podzolic soil of the center of the Non-Black-zone of Russia]. Agrokhimiya [Agrochemistry], no. 7, pp. 36-46, DOI: 10.31857/S0002188120070078. (In Russian).
2. Konomchuk V.V., Shtyrhunov V.D., Blagoveshchensky G.V., Timoshenko S.M., Nazarova T.O., 2021. Produktivnost' biologizirovannykh sevooborotov i izmenenie plodorodiya dernovo-podzolistoy pochvy v zavisimosti ot sposobov osnovnoy obrabotki i udobreniy v Tsentral'nom Nechernozem'e [Crop productivity and fertility of sod-podzolic soil affected by tillage and fertilization in the central Non-Chernozem region]. Kormoproizvodstvo [Feed Production], no. 1, pp. 13-20. (In Russian).
3. Mineev V.G., Sychev V.G., Gamzikov G.P., Sheudzhen A.Kh., Agafonov E.V., Belous N.M., Egorov V.S., Podkolzin A.I., Romanenkov V.A., Torshin S.P., Lapa V.V., Tsyganov A.R., Persikova T.F., Eleshev R.E., Saparov A.S., 2017. Agrokhimiya [Agrochemistry]. Moscow, VNIIA named after D.N. Pryanishnikova, 854 p. (In Russian).
4. Zharova T.F., 2016. Sevooboroty i ikh effektivnost' v upravlenii plodorodiem pochv [Crop rotations and their effectiveness in managing soil fertility]. Science Time, no. 2, pp. 233-238. (In Russian).
5. Konovalova L.K., Okorkov V.V., Petrosyan R.D., 2019. Rol' faktora “sevooborot” v upravlenii plodorodiem i produktivnost'yu pochv [The role of the “crop rotation” factor at soil fertility and productivity management]. Vestnik Altayskoy akademii ekonomiki i prava [Bulletin of Altai Academy of Economics and Law], no. 8, pt. 2, pp. 146-152, DOI: 10.17513/vaael.681. (In Russian).
6. Turegeldiev B.A., Buribaeva L.A., Aitbasaev T.E., Tazhibaev T.S., 2019. Biologizirovannye ovoshchnye sevooboroty – vazhnyy faktor sokhraneniya plodorodiya pochv i proizvodstva ekologicheski chistoy ovoshchnoy produktsii [Biological vegetable crop rotations is an important factor of the soil safety and production of environmental pure vegetable products]. Pochvovedenie i agrokhimiya [Soil Science and Agrochemistry], no. 3, pp. 31-40. (In Russian).
7. Tyulin V.A., Sutyagin V.P., 2017. Konstruirovanie sevooborotov v adaptivno-ekologicheskom zemledelii (nauchnyy obzor) [Designing crop rotations in adaptive-ecological agriculture (scientific review)]. Mezhdunarodnyy zhurnal prikladnykh i fundamental'nykh issledovaniy [International Journal of Applied and Fundamental Research], no. 10, pt. 2, pp. 297-301. (In Russian).
8. Novikov A.A., 2019. Polevye sevooboroty i ikh vliyanie na balans gumusa v usloviyakh chernozemov obyknovennykh Rostovskoy oblasti [Field crop rotations and their impact on the humus balance under the conditions of ordinary chernozems in Rostov region]. Agrarnaya nauka – sel'skomu khozyaystvu: sbornik materialov XIV Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Bulletin of the XIV International Scientific-Practical Conference]. Barnaul, b. 1, pp. 232-233. (In Russian).
9. Dokuchaeva L.M., Yurkova R.E., 2022. Balans organicheskogo veshchestva i mery po ego podderzhaniyu v oroshaemykh sevooborotakh [Organic matter balance and measures for its maintenance in irrigated crop rotations]. Puti povysheniya effektivnosti oroshaemogo zemledeliya [Ways of Increasing the Efficiency of Irrigated Agriculture], no. 1(85), pp. 4-10. (In Russian).
10. Nikonchik P.I., 2012. Sevooborot i vosproizvodstvo plodorodiya pochvy. Rezul'taty 30-letnego statsionarnogo opyta [Crop rotation and soil fertility improvement. Results of a 30-year long-term experiment]. Izvestiya Timiryazevskoy sel'skokhozyaystvennoy akademii [Bulletin of Timiryazev Agricultural Academy], iss. 3, pp. 88-98. (In Russian).
11. Babichev A.N., Dokuchaeva L.M., Yurkova R.E., 2020. [Factors enhancing the adverse effects of long-term irrigation on the ordinary chernozem properties]. Nauchnyy zhurnal Rossiyskogo NII problem melioratsii, no. 4(40), pp. 1-22, available: http:rosniipm-sm.ru/article?n=1156 [accessed 20.01.2023], DOI: 10.31774/2222-1816-2020-4-1-22. (In Russian).
12. Dong X., Wang J., Zhang X., Dang H., Singh B.P., Liu X., Sun H., 2022. Long-term saline water irrigation decreased soil organic carbon and inorganic carbon contents. Agricultural Water Management, vol. 270, 107760, https:doi.org/10.1016/-j.agwat.2022.107760.
13. Shchedrin V.N., Balakay G.T., Dokuchaeva L.M., Yurkova R.E., Shalashova O.Yu., Tabala G.I., 2017. Rukovodstvo po kontrolyu i regulirovaniyu pochvennogo plodorodiya oroshaemykh zemel' [Guidelines for Control and Regulation of Soil Fertility of Irrigated Land]. Novocherkassk, RosNIIPM, 137 p. (In Russian).
14. Shalashova O.Yu., Rubtsov I.P., 2022. [Transformation of ordinary chernozem during long-term irrigation with low-mineralized water of sulfate-sodium water]. Melioratsiya i gidrotekhnika, no. 3(40), pp. 1-14, available: http:www.rosniipm-sm.ru/article?n=1289 [accessed 20.01.2023], DOI: 10.31774/2712-9357-2022-12-3-1-14. (In Russian).
