N&H TOP LINE: Higher stocking rate may lower nitrogen leaching

Grazing more cows per hectare in pasture-based dairy systems led to less nitrogen leached to ground water.

With the global population increasing to any estimated 9 billion people by 2050, the intensification of agricultural practices in recent decades has been necessary. However, those intensified practices have led to environmental concerns related to nitrogen excretion in groundwater.

In dairy farming, particularly on pasture-based systems, leaching of nitrate-nitrogen into groundwater is a primary concern and has led certain countries to place limits on herd size on a fixed land area

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