0 a method of farming where a number of different plants are grown one after the other on a field so that the soil stays healthy and fertile (= able to produce crops)
Crop rotation kept soil nutrients high and avoided over-farming.
The old forms of crop rotation with fallow periods were often displaced by legume-rotation field-grass agriculture.
These practices may include cover crops, manures, compost, crop rotation, intercropping, and biological pest control.
Furthermore, crop rotation, and particularly no-till, promote diverse invertebrate populations, which play an important role in maintaining nutrient cycling and soil structure.
On the other hand, organic production techniques, particularly crop rotation, can reduce risk in the longer term.
Soil samples were collected from the same plots for the duration of one crop rotation cycle.
But obtaining a certificate required not only that one adopt techniques such as crop rotation, manuring and the building of field contours.
Therefore, once a candidate crop is identified, it may be many years before the crop is ready to be included in a crop rotation.
