Nitrogen Fertilizer Application Timing Effects on Nitrous Oxide Emissions from Simulated Furrow-Irrigated Rice on a Silt-Loam Soil in the Greenhouse

Furrow-irrigation represents a growing alternative water management strategy for rice (Oryza sativa) production. However, optimal nitrogen (N) fertilization rates and timing for furrow-irrigated rice are still in question. Though methane emissions may be minimized without a prolonged flood, concern exists that furrow-irrigated rice may increase nitrous oxide (N₂O) production and release from frequent alternating wet and dry soil conditions.