SHAPES on green manure? Great idea!
Having sheep graze the green manure crop has some unexpected advantages:
the culled part is "fermented" by the sheep and left on site, it is released along with useful digestive substances faster for the main crop
the short crop is easier to work in, tilling is often not necessary, so less diesel and hours are needed
the main crop grows faster after germination due to more oxygen in the soil; as less oxygen is consumed for digestion of the green manure crop
To maximise all the benefits, the sheep do need to "deliver" the plot nice and bare, a matter of good planning with the sheep farmer.
Want to know more? Check out www.kempvzw.be of www.provinos.nl