That will not stop for the foreseeable future, as it would require a common understanding among all EU countries to reform the farming subsidy system. We currently see in the Netherlands and northern Germany, that they rather poison the water supply with nitrate and pay large fines to the EU than reducing the use of mineral fertilizers.

Ironically the abhorrent use of fertilizers destroys the soil, so eventually they are stuck with using the fertilizers or let the fields recover for years. It's like a severe alcohol addiction and no politician has the balls to put agriculture into rehab.