论文信息 - Development and Evaluation of Soil Moisture-Based Seepage Irrigation Management for Water Use and Quality

Development and Evaluation of Soil Moisture-Based Seepage Irrigation Management for Water Use and Quality

A 2-year study was conducted at a seepage-irrigated vegetable farm in south Florida to develop and evaluate an improved, soil moisture-based irrigation management practice that could potentially reduce irrigation water use, prevent water quality impairment, and maintain or improve crop yield. The improved practice reduced irrigation water use by 36% compared to the conventional irrigation management. Moreover, the improved practice also increased rainfall retention and decreased runoff events by lowering the water table 13 cm compared to the conventional practice. Total dissolved phosphorus (P) concentrations in groundwater were higher (p 0.05) were observed in groundwater nitrogen (N) ( N Ox –N , N H4 –N , and total dissolved N) concentrations b...

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