Table 4. An example of a crop rotation in Roslagen, Sweden.

Year  
Crop
 
Time
              Practice and comments
1  
Black fallow
 
April-June
  Repeated harrowing and plowing to deter weeds, especially couch grass (Elymus repens), thistles, and other vegetatively propagated weeds.
August
  Manure is spread in the field, and an autumn cereal is sown.
2  
Autumn cereal
 
...
  Autumn cereals are demanding of nutrients and absorb the nutrients mineralized during the black fallow and in the manure.
August
  Harvest of cereals, plowing, and sowing of multidiverse perennial ley.
3  
Perennial ley
 
...
  During the ley the soil rests. Deep-rooted and leguminous crops enrich and aerate the soil.
July
  Harvest of hay or silage. On most farms, an additional harvest is carried out in August or September.
4  
Perennial ley
 
July
  Harvest of hay or silage.
5  
Perennial ley
 
July
  Harvest of hay or silage.
August
  Plowing of ley, sowing of autumn cereal. The autumn cereal absorbs the nutrients released from the ley.
6  
Autumn cereal
 
August
  Harvest of cereal.
November
  Plowing.
7  
Oats
 
May
  Sowing of oats. The oat crop is less demanding and is able to absorb the remaining nutrients.
September
  Harvest of oats.
Black fallow is not compatible with the rules for European Union subsidies.