Dairy farming systems based on efficient nutrient management

Abstract

In Dutch dairy farming, dramatic nutrient losses occur, causing serious environmental problems and representing an economic and energy waste. Simple models of nutrient flows in and between components of the farming system were used to design a prototype system for a new experimental farm on sandy soil, that has to meet strict environmental demands. Initial results of modelling suggest that nutrient losses can be reduced considerably by more accurate management and introduction of rather cheap and simple measures. However, more radical and expensive modifications of the farming system are necessary to meet future standards of the Dutch government for maximum allowable emissions. -from Authors