Imports from abroad were incorporated into Switzerland’s farm-gate-budget-based agricultural nutrient budget calculation to expand it into a food-system budget. This allows assessment of self-sufficiency, nutrient use and circularity to be assessed in addition to nutrient surpluses.
With the passage of time, crop yield losses can occur on no-till farmland. Researchers from Agroscope and the Universities of Graz and Nevada demonstrated how subsoil compaction can lead to yield losses.