With a walk-in plant growth chamber, about 6 m² of space are available to prepare and run experiments on soil-plant systems under controlled and near-natural conditions. The temperature can be set from +5 °C to +45 °C without irradiation and from +10 °C to +45 °C with irradiation. The humidity may range from 40% rH to 95% rH without irradiation and with irradiation from 40% rH to 85% rH.