Control of hydroponic nitrate nutrition (Technical Article)

Control of hydroponic nitrate nutrition (Technical Article)

Control of hydro­ponic nitrate nutri­tion (Technical Article)

A strict con­trol of nitrate con­cen­tra­tion in hydro­ponics dur­ing long-term exper­i­ments requires real-time ana­lyses that can­not be per­formed manu­ally. Adamowicz et al. describe a novel auto­matic set-up that meas­ures and reg­u­lates nitrate con­cen­tra­tion, pH and solu­tion volume, allow­ing the cal­cu­la­tion of nitrate uptake rates. The sys­tem is shown to be reli­able at high tem­poral res­ol­u­tion (minutes to hours) and over long-term exper­i­ments (up to 1 year), and provides a method to reg­u­late up to seven N treat­ments by adjust­ing the daily uptake of test plants rel­at­ive to controls.

Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.

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