Effects on nodular extracts of Alnus glutinosa (l.) Gaertn. on ammonification, nitrification and CO2 production in different soils
The effect of root nodule extracts from European alder (Alnus glutinosa [L.] Gaertn.) on the rates of amrnonification, nitrification and C02 production was evaluated in three soils of different physico-chemical characteristics. The extracts decreased net ammonification rate (up to a 43% respect to w...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 1994 |
| País: | España |
| Recursos: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:39030 |
| Acesso em linha: | https://ddd.uab.cat/record/39030 |
| Access Level: | acceso abierto |
| Palavra-chave: | Ammonification Alnus glutinosa C02 Production Exudates Nitrification |
| Resumo: | The effect of root nodule extracts from European alder (Alnus glutinosa [L.] Gaertn.) on the rates of amrnonification, nitrification and C02 production was evaluated in three soils of different physico-chemical characteristics. The extracts decreased net ammonification rate (up to a 43% respect to water control), probably because of an increase of immobilization rather than an effect of a speciffc inhibitor. The rate of nitrification was increased by the extracts (up to 40% from water control) because of the ammonium present in the extracts. An increase in C02 production showed that the nodule extracts stimulate microbial activity. This depended not only on the amount of organic matter introduced by the extracts but also to some activator of microflora. |
|---|