TY  - CONF
UR  - https://orgprints.org/id/eprint/12308/
A1  - Möller, Dr. Kurt
A1  - Stinner, Walter
A1  - Leithold, Prof. Dr. Günter
AV  - public
TI  - Effects of Biogas Digestion of Slurry, Cover Crops and Crop Residues on Nitrogen Cycles and Crop Rotation Productivity of a Mixed Organic Farming System
Y1  - 2008///
N2  - Manures and crop residues can be utilised for digestion, without any significant losses of nutrients. This paper presents the results of field trials about the effects of biogas digestion in a mixed organic cropping systems on nutrient cycling and yield of a whole crop rotation. Digestion of slurry affected yields and N uptake only after soil incorporation. The inclusion of crop residues for digestion increased the amounts of ?mobile? manure. N uptake and yield of non-leguminous main crops increased about 10%, due to a more adapted allocation of nutrients within the whole cropping system by reallocation of N towards the crops with higher N needs. Additionally, removing the cover crops in autumn and their digestion increased the fertilizing efficiency of N, lowering the risk of leaching losses. 
KW  - nitrogen
KW  -  nutrient management
KW  -  digestion
KW  -  renewable energies
ID  - orgprints12308
ER  -