Table 6 System II: input parameters of w-cc with maize as main crop
From: Ecological evaluation of biogas from catch crops with Sustainable Process Index (SPI)
V0 without cc | V1 cc mulched | V2 cc biogas, ploughing | V3 cc biogas no ploughing | V4 cc biogas no ploughing, biomethane | V5 cc biogas no ploughing 100% self-sufficiency | Biogas maize on 20% field | Biogas from 75% maize-straw (4.5 t DM/ha) | |
|---|---|---|---|---|---|---|---|---|
Maize (50 or 15 t DM/ha) | Silo-maize 100% as fodder | Silo-maize: 80% fodder, 20% biogas | 9 t DM CCM as fodder | |||||
Import/purchase fodder | 3 t DM Maize silage | |||||||
Cc (t DM/ha) | 0 | 2.5 | 4.5 | 4.5 | 4.5 | 4.5 | 0 | 0 |
Diesel consumption wheat (L/ha) | 105 | 105 | 105 | 86 | 86 | 105 | 105 | 105 |
Diesel consumption Cc (L/ha) | 0 | 6 | 60 | 42 | 42 | 0 | 0 | 0 |
Mineral N-fertiliser wheat (kg N/ha) | 190 | 170 | 155 | 155 | 155 | 155 | 190 | 190 |
N2-fixation summer catch crop | 0 | 20 | 35 | 35 | 35 | 0 | 0 | 35 |
Biogas digestate with 8% DM-content (t/ha) | 0 | 0 | 18 | 18 | 18 | 18 | 18 | 18 |
P-fertiliser SP (kg/ha) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
K- fertiliser SP (kg/ha) | 139 | 139 | 139 | 139 | 139 | 139 | 139 | 139 |
Ca-fertiliser SP (kg/ha) | 126 | 126 | 126 | 126 | 126 | 126 | 126 | 126 |
Herbicide Phenmediapham SP (kg/ha) | 0.92 | 0.92 | 0.92 | 0.92 | 0.92 | 0.92 | 0.92 | 0.92 |
Herbicide Terbuthylazin SP (kg/ha) | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 |
Herbicide Pyridate SP (kg/ha) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
NO3-emissions (kg/ha) | 28 | 26 | 21 | 21 | 21 | 21 | 28 | 28 |
N2O emissions (kg/ha) | 4.4 | 4.9 | 4.5 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 |
Erosion (t/ha) | 3.7 | 1.5 | 1.6 | 0.8 | 0.8 | 0.8 | 3.7 | 3.7 |
Humus (kg C/ha) | −169 | 97 | 199 | 199 | 199 | 199 | −169 | −169 |
Other basic parameters | Additional data and information about material and technology use: www.spionweb.tugraz.at | |||||||