Ohio State Agronomy
18 minutes
Denitrifying Bacteria Turn Nitrate into Gas in Waterlogged Garden Beds
When more than about 60–70 % of soil pore space is water-filled, denitrifiers reduce NO₃⁻ to N₂O and N₂ gas; a warm, saturated clay bed can lose a few percent of its nitrate per day, so raised beds and not overwatering keep nitrogen in the soil.