Farmers have understood for centuries that animal manure helps return vital nutrients to crop fields. Many farmers pull mechanical spreaders behind fossil fuel-burning tractors to move manure into fields, but at Polyface farm, livestock spread their own manure. Joel Salatin of Polyface Farm in Virginia’s Shenandoah Valley advocates rotational grazing; they blend livestock and pasture species to puzzle pests.
Well managed grazing concentrates livestock in one area for a short period and then move them on. At Polyface farm, portable electric fences contain grazing beef herds. Farmers move the fences and livestock daily. Salatin said his animals look forward to their fresh “salad bar” each morning. The cattle graze forage at a sustainable level. They trample their manure patties ensuring good soil contact and starting the decomposition process. [Read more…]