Effects of saturated sludge on pseudoglay properties and plant yield
Abstract: A large part of arable land in the Republic of Serbia consists of soils with an acidic reaction. It is estimated that 43% of arable land in western Serbia, Šumadija and central Serbia consists of acidic soils with unfavorable physical and chemical properties, on which agricultural production is difficult, without the application of amelioration measures, the purpose of which is to remove or reduce the negative production properties of these soils. Of the total area of arable land in western and central Serbia, 250,000 ha are pseudogley soils, the main characteristic of which is the long-term retention of surface water during the wet period of the year, unfavorable oxidation-reduction processes and a high degree of hydrolytic acidity. The application of saturation sludge, which is created in the process of sugar production, is a very favorable amelioration tool for reducing hydrolytic acidity and improving other chemical properties of the soil. After the experimental work was completed, where we treated the soil with different amounts of saturation sludge, we came to the conclusion that the plants respond positively to the reduction in the degree of hydrolytic acidity, which can be seen in the higher growth of plants in treatments with a larger amount of saturation sludge, as well as a higher yield. During the experiment, it was observed that the plants in treatments where doses of 15 t ha-1 and 25 t ha-1 saturation sludge were applied have higher growth, higher above-ground mass, higher yield and higher coverage than plants grown in the control and 5 t ha-1 treatment. It was also observed that the soil in the 15 t ha-1 and 25 t ha-1 treatments has a lower degree of hydrolytic acidity as well as a higher content of easily accessible forms of K and P than the soil in both the control and the 5 t ha-1 treatment. The correct and timely use of melioration agents in combination with organic fertilizers leads to the improvement of physical and chemical properties of soil with negative production properties, which positively affects the size and stability of yields, which further leads to successful agricultural production and economic stability of agricultural producers.
engleski
2024
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Saturation mud, pseudoglay, soil, agriculture