From: What are the effects of agricultural management on soil organic carbon in boreo-temperate systems?
Intervention | No. of studies |
---|---|
Monoculture vs: | |
Unspecified | 1 |
Complex rotation (4 years) | 32 |
Rotations involving perennials | 27 |
2 or 3 years rotations | 105 |
Rotations involving 1 year “perennials” | 26 |
Sewn fallow or grass | 26 |
Chemical or bare fallow | 4 |
Comparison of different crops | |
Unspecified | 1 |
Legumes ± or legumes vs legumes | 144 |
Grass/hay/green fallow± or vs. each other | 20 |
Only crops | 32 |
Annual crop vs. perennial crop (2 years or more) | 61 |
Unspecified | |
Multi cropping | 20 |
Under-sown/intercropping (legumes or other) | |
Double cropping | 28 |
Cover- or catch crops | 17 |
Energy crops | |
Energy crops vs. energy crops | 9 |
Energy crops vs. other crops | 7 |
Simple rotation (2 year) vs. complex rotations (3 years or more) | 46 |
Total | 240 |