Applying manure on perennial forage

Fossil energy and GHG saving potentials of pig farming in the EU

“…In relation to manure P, the second important nutrient element, research has shown that continued annual applications of pig manure to meet N requirements of a crop would lead to accumulation of excessive amounts of P, which potentially increase nutrient contamination of streams and aquifers. A more sustainable approach to manure application is thus to apply it based on P, not N, requirement of crops (Atia, 2006).…”