DYNAMIC TRANSFORMATION OF SEWAGE SLUDGE AND FARMYARD MANURE COMPONENTS. 1. CONTENT OF HUMIC SUBSTANCES AND MINERALISATION OF ORGANIC CARBON AND NITROGEN IN INCUBATED SOILS    . 1996. Т. 58. № 2-3. С. 121-126

Авторы: Iakimenko O., Sadovnikova L., Orlov D., Ammosova Y., Otabbong E., Persson J., Nilsson I.
Журнал: Agriculture, Ecosystems & Environment
Том: 58
Номер: 2-3
Год издания: 1996
Первая страница: 121
Последняя страница: 126
DOI: 10.1016/0167-8809(95)01006-8
Аннотация: An incubation experiment was conducted with farmyard manure (FYM) and two municipal sewage sludges (SS): one from Russia (SSR) and one from Sweden (SSS) using a sandy loam soil at 25°C for 6 weeks. The objectives were to investigate mineralisation of organic C and N and transformations of humic substances (HS). Cumulative C mineralisation was about 0.8–1% of total C and cumulative N mineralised was about 3–7% of the pre-incubation total N contents in the treatments. The organic materials contained 1.2–1.5% humic acids (HA) and 0.8–1.4% fulvic acids (FA). Incubating the soils with manures did not markedly influence soil humus composition, indicating that SS-borne organic C was not converted into HS during the short-term incubation. SSR was more resistant to decomposition than SSS, although both SS were less susceptible than FYM to changes in all parameters.
Добавил в систему: Якименко Ольга Сергеевна

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