Combined Passive Heating Systems in Mediterranean, Low-Cost, Greenhouse Cucumber Crops
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URI: http://hdl.handle.net/10835/16260
ISSN: 2073-4395
DOI: https://doi.org/10.3390/agronomy14020374
ISSN: 2073-4395
DOI: https://doi.org/10.3390/agronomy14020374
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Bonachela Castaño, Santiago; Granados García, María Rosa; Hernández Rodríguez, Joaquín; López Hernández, Juan Carlos; Magán Cañadas, Juan JoséFecha
2024-02-15Resumen
Greenhouse microclimate and crop response of winter cucumber cycles grown in unheated Mediterranean greenhouses with representative combinations of passive heating systems (fixed, plastic screen with and without black mulch; movable thermal screen with black mulch; and double-layer plastic covering with black mulch) were evaluated in Almería, SE Spain. In the first experiment, the black mulch in combination with a movable or fixed screen increased the marketable cucumber yield by 14%, which appears to be mostly attributable to higher substrate temperatures induced by the black mulch in the cold period. Moreover, the black mulch in combination with a fixed screen frequently led to screen water condensation. The use of a movable screen, rather than a fixed one, in combination with a black mulch increased the first-class cucumber yield in the second experiment and reduced the non-marketable one in the first experiment. This might be mainly attributable to the higher incoming shortwave rad...
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Greenhouse microclimate