Comparison of spinach cultivation in floating hydroponic system and soil in glasshouse and open field conditions

Year 2022, Volume: 35 Issue: 1, 7 - 14, 01.04.2022

Kutluk Bilge Bostancı Salih Ülger

https://doi.org/10.29136/mediterranean.1061475

Cited By: 1

Abstract

The objective of this study was to investigate the effect of glasshouse and outdoor conditions on the growth of spinach plants in floating hydroponic culture and soil. In the floating hydroponic culture, the plants were grown in a plastic tank (120x50x30 cm) and a volume of 80 L in a glasshouse and open field. Each seed was inserted at 13x5 cm in rock wool in styrofoam and then placed in the nutrient solution. There was no significant change in EC values measured in the glasshouse and outside, and the pH of the solutions in the outdoor environment was higher (except in late December) than those in the glasshouse. The earliest and late harvests were made in floating hydroponic culture in the glasshouse and outdoor cultivation at 64 and 97 days, respectively. The highest yield was 1.54 kg m-2 in open field cultivation, it was followed by 1.45 kg m-2 in the greenhouse and 1.32 kg m-2 in the open field in floating hydroponic culture, respectively. Despite the high yield that can be obtained from floating hydroponic culture cultivation in the glasshouse and outside, the fact that there is a lower marketable amount is a negative aspect. However, the floating hydroponic culture could be preferred to soil cultivation due to many advantages such as production 2-3 times a year, low labor costs, and less pesticide use. Spinach cultivation in the open field does not have any problems in terms of nitrate, but nitrate accumulation can be a problem in hydroponic culture.

Keywords

Floating hydroponic culture, Soil growing, Nitrate, Spinacia oleracea

Supporting Institution

The Scientific Projects Unit of Akdeniz University

Project Number

FYL-2015-412, 2015-2016

Thanks

This work was part of the Master Science experiment and financially supported by the Scientific Projects Unit of Akdeniz University with the project no FYL-2015-412, 2015-2016. The authors thank Prof.Dr. Nurgul Ercan, the previous supervisor of the project, for her assistance.

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