Author:
Baliuk Sviatoslav,Vorotyntseva Ludmila,Zakharova Maryna,Janse Liliya
Abstract
This research aimed to assess the impact of deep ploughing, with manuring and manuring alone, as well as the effects of different calcium ameliorants on physicochemical properties, fertility, and crop productivity of calcic chernozems in the Northern Steppe of Ukraine over a period of 7 years. Deep ploughing with manure had long-term positive effects on the mentioned characteristics of chernozems that were irrigated with brackish water over a long period. The bulk density decreased from 1.2 to 0.98 g/cm3, while the carbonate content increased to 8.7%. The humus layer increased from 50 to 75 cm. The exchangeable sodium and potassium percentage decreased from 7 to 3.9-4.8% and crop yield increased by 21-38%. These positive effects of deep ploughing and manuring persisted throughout the entire 7-year period. The effect of calcium ameliorants lasted shorter (only 3-4 seasons) and was as follows: i) the degree of soil sodicity decreased from medium to weak; ii) the content of exchangeable sodium and potassium decreased from 7 to 4.1-5.5%; iii) the content of carbonates in the root zone increased from 2.7 to 3.3%; iv) the crop yield increased by 10-30%. All measures proved to be effective in mitigating the sodicity and salinity of affected chernozems.
Subject
Agronomy and Crop Science
Reference55 articles.
1. Abrol IP, Yadav JSP, Massoud FI, 1988. Salt-affected soils and their management. FAO Soils Bulletin No. 39. Rome, Food and Agriculture Organization of the United Nations.
2. Alcántara V, Don A, Vesterdal L, Well R, Nieder R, 2017. Stability of buried carbon in deep-ploughed forest and cropland soils – implications for carbon stocks. Sci. Rep. 7:5511. Available from: https://doi.org/10.1038/s41598-017-05501-y
3. Alcívar M, Zurita-Silva A, Sandoval M, Muñoz C, Schoebitz M, 2018. Reclamation of saline-sodic soils with combined amendments: impact on quinoa performance and biological soil quality. Sustainability-Basel. 10:3083. Available from: https://doi.org/10.3390/su10093083
4. Baliuk S, 2005. Methods of determining the composition and properties of soils. Book 2. NNC ISSAR, Kharkiv, Ukraine. 224 pp. [in Ukrainian]
5. Baliuk S, Drozd E, Zakharova M, 2015a. Scientific approaches to the rational use and management of saline soils fertility in Ukraine. J. Arid Land Studies. 25:69-72. Available from: https://doi.org/10.14976/jals.25.3_69
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