Resumen

RICO-GARCIA, Enrique et al. Carbon fertilization in medium-tech greenhouses. Rev. Mex. Cienc. Agríc [online]. 2025, vol.16, n.1, e3314.  Epub 27-Mayo-2025. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v16i1.3314.

Carbon fertilization is used in protected agriculture to increase crop productivity. Medium-tech greenhouses do not have climate control equipment other than the electric or manual opening of windows. In these greenhouses, in general, the values of temperature and relative humidity of the air are not ideal for the photosynthesis of the crop in the daytime period between 10:00 am and dusk. The study of a climate database of a medium-tech greenhouse showed that, in the mornings, there are suitable climate conditions for the photosynthesis of the crop. In this work, an experiment was carried out with two medium-tech greenhouses of 108 m2; tomatoes (Solanum lycopersicum) and cucumbers (Cucumis sativus) were grown in both greenhouses; one received carbon fertilization between 7:30 and 9:00 h, whereas the other was maintained with traditional management, without CO2 injection. This study aimed to evaluate the effect of carbon fertilization on crop productivity, expecting significant increases. The results showed increases in weekly productivity of 28% to 59% in tomatoes. There were no significant differences in productivity for cucumbers.

Palabras llave : adequate internal climate; CO₂ injection; crop productivity.

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