Szerző szerinti böngészés "Mansour, Mostafa M."
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Tétel Szabadon hozzáférhető Effects of Sewage Sludge Compost on Carbon, Nitrogen, Phosphorus, and Sulfur Ratios and Soil Enzyme Activities in a Long-Term Experiment(2025) Almási, Csilla; Orosz, Viktória; Tóth, Tímea; Mansour, Mostafa M.; Demeter, Ibolya; Henzsel, István; Bogdányi, Zsolt; Szegi, Tamás; Makádi, MariannaTétel Korlátozottan hozzáférhető Enhancing Soil Organic Carbon Content and Water Retention Using Polyvinyl Alcohol Cross-linked with Chitosan and Pectin(2024) Soliman, Enas; Mansour, Mostafa M.Tétel Szabadon hozzáférhető Sewage sludge compost as an alternative source of phosphorus to rye in acidic sandy soil(2024) Almási, Csilla; Orosz, Viktória; Tóth, Tímea; Henzsel, István; Demeter, Ibolya; Mansour, Mostafa M.; Makádi, MariannaTétel Szabadon hozzáférhető Sewage sludge compost as an alternative source of phosphorus to rye in acidic sandy soil(2024-06-03) Almási, Csilla; Orosz, Viktória; Tóth, Tímea; Henzsel, István; Demeter, Ibolya; Mansour, Mostafa M.; Makádi, MariannaToday, the use of chemical fertilisers is significantly determined by their production and purchase costs, which are high. In contrast, phosphorus (P) is present in sewage sludge in a form that is easy for plants to absorb. Good quality sewage sludge compost (SSC) could contain a high quantity of P, together with other macro- and microelements and organic matter. The effect of regular SSC application on soil characteristics as well as plant parameters has been studied since 2003 in Nyíregyháza in a small plot experiment. Focusing on the P in the soil-plant system, our hypothesis was that SSC covers plants’ P demand through enhancing soil P content and its plant availability in the acidic sandy soil. The effect of the SSC was examined at the doses of 0, 9, 18, and 27 t ha -1 on rye as a test crop. Some soil chemical parameters (pH, soil organic matter - SOM, ammonium lactate (AL) extractable P 2 O 5 ), and the relationship between plant development (green weight, shoot length), physiological parameters (SPAD index), plant shoot P content, and soil available P content were studied. The obtained data indicated that the SOM content, pH, and available P content of the treated plots increased as a result of the long-term applied SSC compared to the control. Measurement of the relative chlorophyll content showed a strong correlation with the available P content of the soil, but surprisingly less correlation with shoot P content was found. The results of plant biomass and soil P content proved that SSC could be used as a low-cost and good source of P for plants.