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Drainage Water Quality from Potato Production
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1985
Year
Irrigation ManagementEngineeringWater ResourcesAgricultural Water ManagementEnvironmental EngineeringAgricultural EconomicsSoil ManagementIrrigationPotato ProductionWater QualityPhosphorus LossesPublic HealthDrainage Water QualitySoil FertilityAbstract NitrogenWater Quality ManagementNutrient Management
ABSTRACT NITROGEN and phosphorus losses were measured from a sandy, high-water-table soil in Florida used for potato production under two water management systems. These were a water-furrow irrigation system with surface drainage only and a subsurface drainage-irrigation system with surface runoff. Total flow volumes were very similar from both management systems. Subsurface drainage accounted for 80% of the water loss from that plot. Nitrate nitrogen and P04-P losses were greater from the water-furrow plot than from the subsurface-drained plot. These results may have been influenced by the interactions of the controlled high watertable and the raised row-beds with the water management systems