Asai, Masayasu; Langer, Vibeke; Frederiksen, Pia; … - In: Agricultural Systems 128 (2014) C, pp. 55-65
Fulfilling the targets of the European Nitrate Directive (91/676/EEC) and the Water Framework Directive (2000/60/EC) has required governments to take action to prevent excessive application of livestock manure. In Denmark, where intensive livestock production has caused serious nitrogen leaching...