Raw data: Temporal variation of nutrient ratios within hydroponic nutrient solutions

This dataset contains the raw experimental data underpinning the manuscript “Temporal variation of nutrient ratios within hydroponic nutrient solutions”. It includes measurements from a commercial-scale hydroponic dosing experiment comparing three nutrient management regimes (Control, Treatment 1, and Treatment 2) over a 28-day growth cycle of Red Batavia lettuce. Data are provided across five sheets: (1) nutrient solution chemistry for Treatment 1, (2) nutrient solution chemistry for Treatment 2, (3) control solution chemistry, (4) destructive harvest measurements including fresh weight, dry weight, and morphological parameters, and (5) an economic analysis of nutrient use. Variables cover concentrations of macro- and micronutrients, electrical conductivity, crop performance traits, and operational metrics essential for evaluating nutrient depletion dynamics and system efficiency. These data support all analyses, figures, and statistical outputs reported in the manuscript.