Assessing growing media in simplified hydroponics in Tunisia: an open access dataset

The following dataset was used for the publication Cerasola, V.A., Jmayai, A., Viola, F., Jamai, D., Adamo, F., Costea, C., Pennisi, G., Orsini, F., Michelon, N., Setti, M. and Gianquinto, G. (2025). Simplified hydroponics in Tunisia: assessing the charred straw as growing substrate for lettuce cultivation. Acta Hortic. 1422, 29-36. The dataset includes the agronomic variables monitored at the harvest of a lettuce crop cultivated in a simplified hydroponic system, in a validation experiment where two different growing media were tested (commercial perlite versus carbonized wheat straw). The hydroponic system is a closed-loop system, where plastic bottles are used as pot where plants are transplanted. The bottles are joined in lines, and tilted at the slope of 24%, and filled with the substrate. The system integrated a fed-gravity irrigation system, where the nutrient solution is delivered from an upper tank (at 2 m height) to the first bottles of the lines. Thanks to the gravity, the nutrient solution reaches the lower part of the system from where the water is recovered with a drainage system and recirculated again (for a visual representation of the hydroponic system the reader is invited to read the publication Michelon, N. et al. (2020). Strategies for improved yield and water use efficiency of lettuce (Lactuca sativa L.) through simplified soilless cultivation under semi-arid climate. Agronomy, 10(9), 1379. https://doi.org/10.3390/agronomy10091379). The data coming from the experimentation are reported in the file attached.

本数据集用于Cerasola, V.A.、Jmayai, A.、Viola, F.、Jamai, D.、Adamo, F.、Costea, C.、Pennisi, G.、Orsini, F.、Michelon, N.、Setti, M.与Gianquinto, G.于2025年发表的研究论文《突尼斯简易水培：评估炭化秸秆作为生菜栽培基质》，该论文刊载于Acta Hortic. 1422卷，第29-36页。
本数据集涵盖了简易水培系统中栽培的生菜收获期监测的全部农艺变量。本次验证试验共测试两种不同栽培基质：商用珍珠岩与炭化小麦秸秆。
该水培系统为闭环系统，以塑料瓶作为植株移栽的栽培容器。多个塑料瓶串联成排，并以24%的坡度倾斜，内部装填栽培基质。系统集成重力自流灌溉系统，营养液从高度为2米的上部储液罐输送至管路首组塑料瓶，依靠重力作用流经整个系统至下游区段，随后通过排水系统回收剩余营养液并循环复用。如需了解该水培系统的可视化示意图，读者可参阅Michelon, N.等人2020年发表的研究论文《半干旱气候下简化无土栽培提升生菜（Lactuca sativa L.）产量与水分利用效率的策略》，该论文刊载于Agronomy 10(9)卷，第1379页，DOI: 10.3390/agronomy10091379。
本试验的相关实测数据已附于本数据集中。