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Environmental effects of the additional agricultural nitrogen policy

Milieugevolgen van het aanvullend stikstofbeleid

Synopsis

The Dutch government has announced additional nitrogen measures on ca. 240,000 ha dry sandy soils in order to realise quality standards for nitrate in groundwater (i.e. 50 mg/l).The most important element of this additional policy is the introduction of lower levy-free surpluses for N for dry sandy areas. Here we estimate the effects of these additional measures. Provided the levy-free N surpluses are not exceeded, the area in which the nitrate standards will be met will increase from ca. 55% (present situation) to 75-85% of the total agricultural area in the Netherlands. The effect of the additional measures on the surface water quality will be small. However, it is questionable whether the levy-free N-surpluses wil be achieved in practise.
 

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