The Cropping system experiment at Apelsvoll
The cropping system experiment at Apelsvoll, established in 1989, is designed for measuring long-term effects of diverging production and intensity on yields and product quality, nutrient leaching and runoff, and changes in soil chemical, -physical, and –biological properties

The experiment comprises 12 mini-farms, each having a four-year crop rotation, where each crop is present every year (each farm has four rotation plots). Altogether six cropping systems are represented (two replicates): Three systems with cash-cropping (mainly cereals) and three systems with both arable and fodder crops, representing mixed dairy production. The husbandry exist in theory only, and the production of milk, meat, and cattle slurry is calculated on the basis of fodder production (ley) and the use of feed concentrates (cereals produced on-farm and/or purchased feed concentrates). In both production categories, organic and conventional management is represented.

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