Abstract
The objectives of this study were to characterize biogas residues either unseparated or separated into a liquid and a solid phase from the fermentation of different substrates with respect to their N and C content. In addition, short and long term effects of the application of these biogas residues on the N availability and N utilization by ryegrass was investigated. It is concluded that unseparated or liquid separated biogas residues provide N at least corresponding to their ammonium content and that after the first fertilizer application the C{sub org}:N{sub org} ratio of the biogas residues was a crucial factor for the N availability. After long term application, the organic N accumulated in the soil leads to an increased release of N.
Citation Formats
El-Sayed Fouda, Sara.
Nitrogen availability of biogas residues.
Germany: N. p.,
2011.
Web.
El-Sayed Fouda, Sara.
Nitrogen availability of biogas residues.
Germany.
El-Sayed Fouda, Sara.
2011.
"Nitrogen availability of biogas residues."
Germany.
@misc{etde_22125043,
title = {Nitrogen availability of biogas residues}
author = {El-Sayed Fouda, Sara}
abstractNote = {The objectives of this study were to characterize biogas residues either unseparated or separated into a liquid and a solid phase from the fermentation of different substrates with respect to their N and C content. In addition, short and long term effects of the application of these biogas residues on the N availability and N utilization by ryegrass was investigated. It is concluded that unseparated or liquid separated biogas residues provide N at least corresponding to their ammonium content and that after the first fertilizer application the C{sub org}:N{sub org} ratio of the biogas residues was a crucial factor for the N availability. After long term application, the organic N accumulated in the soil leads to an increased release of N.}
place = {Germany}
year = {2011}
month = {Sep}
}
title = {Nitrogen availability of biogas residues}
author = {El-Sayed Fouda, Sara}
abstractNote = {The objectives of this study were to characterize biogas residues either unseparated or separated into a liquid and a solid phase from the fermentation of different substrates with respect to their N and C content. In addition, short and long term effects of the application of these biogas residues on the N availability and N utilization by ryegrass was investigated. It is concluded that unseparated or liquid separated biogas residues provide N at least corresponding to their ammonium content and that after the first fertilizer application the C{sub org}:N{sub org} ratio of the biogas residues was a crucial factor for the N availability. After long term application, the organic N accumulated in the soil leads to an increased release of N.}
place = {Germany}
year = {2011}
month = {Sep}
}