Alternative Mulches for Sustainable Greenhouse Tomato Production

Soil mulching has advantages for horticultural crops, from both agronomic and phytosanitary points of view. The most common material used is polyethylene (PE); however, promising alternatives from the circular economy exist, such as straw (ST) and biodegradable biopolymers (BBs). The effect of the t...

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Main Authors: Jose Ignacio Marín-Guirao, Emilio Martín-Expósito, María del Carmen García-García, Miguel de Cara-García
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/12/6/1333
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author Jose Ignacio Marín-Guirao
Emilio Martín-Expósito
María del Carmen García-García
Miguel de Cara-García
author_facet Jose Ignacio Marín-Guirao
Emilio Martín-Expósito
María del Carmen García-García
Miguel de Cara-García
author_sort Jose Ignacio Marín-Guirao
collection DOAJ
description Soil mulching has advantages for horticultural crops, from both agronomic and phytosanitary points of view. The most common material used is polyethylene (PE); however, promising alternatives from the circular economy exist, such as straw (ST) and biodegradable biopolymers (BBs). The effect of the three aforementioned mulches was evaluated and compared to non-mulched soil in a Mediterranean greenhouse for two years of an organic tomato crop. Physical (moisture and temperature) and physicochemical properties of the soil, in addition to crop yield and the effect of the mulches on weed control, were assessed. Additionally, the deterioration of plastic mulches was assessed. The temperature was higher in the mulched soils, but few differences were found between soil and BB at the end of the second cycle. Evaporation was lower in mulched soil, in general, without big differences among the types of mulch. Crop yield did not show differences. At the end of the trials, of the 16 physicochemical variables evaluated, only a slight increase in pH was detected in the ST-mulched plots. BB film degradation reached 5.6% and 6.7% of the total surface at the end of the first and second cycles, respectively. Weeds were equally limited for PE, BB, and ST mulches, but cereal seeds contained within the straw germinated randomly all over the crop cycle. In summary, straw and biodegradable plastic mulches offered the same benefits as conventional PE mulch. Therefore, they can be considered a feasible and more sustainable option, in addition to being consistent with the principles of the bioeconomy.
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spelling doaj.art-b7a6b659ea78478b8e60246b1829232d2023-11-23T15:10:01ZengMDPI AGAgronomy2073-43952022-05-01126133310.3390/agronomy12061333Alternative Mulches for Sustainable Greenhouse Tomato ProductionJose Ignacio Marín-Guirao0Emilio Martín-Expósito1María del Carmen García-García2Miguel de Cara-García3Andalusian Institute of Agricultural and Fisheries Research Training (IFAPA) La Mojonera, Camino San Nicolás, 1, 04745 Almería, SpainAndalusian Institute of Agricultural and Fisheries Research Training (IFAPA) La Mojonera, Camino San Nicolás, 1, 04745 Almería, SpainAndalusian Institute of Agricultural and Fisheries Research Training (IFAPA) La Mojonera, Camino San Nicolás, 1, 04745 Almería, SpainAndalusian Institute of Agricultural and Fisheries Research Training (IFAPA) La Mojonera, Camino San Nicolás, 1, 04745 Almería, SpainSoil mulching has advantages for horticultural crops, from both agronomic and phytosanitary points of view. The most common material used is polyethylene (PE); however, promising alternatives from the circular economy exist, such as straw (ST) and biodegradable biopolymers (BBs). The effect of the three aforementioned mulches was evaluated and compared to non-mulched soil in a Mediterranean greenhouse for two years of an organic tomato crop. Physical (moisture and temperature) and physicochemical properties of the soil, in addition to crop yield and the effect of the mulches on weed control, were assessed. Additionally, the deterioration of plastic mulches was assessed. The temperature was higher in the mulched soils, but few differences were found between soil and BB at the end of the second cycle. Evaporation was lower in mulched soil, in general, without big differences among the types of mulch. Crop yield did not show differences. At the end of the trials, of the 16 physicochemical variables evaluated, only a slight increase in pH was detected in the ST-mulched plots. BB film degradation reached 5.6% and 6.7% of the total surface at the end of the first and second cycles, respectively. Weeds were equally limited for PE, BB, and ST mulches, but cereal seeds contained within the straw germinated randomly all over the crop cycle. In summary, straw and biodegradable plastic mulches offered the same benefits as conventional PE mulch. Therefore, they can be considered a feasible and more sustainable option, in addition to being consistent with the principles of the bioeconomy.https://www.mdpi.com/2073-4395/12/6/1333biodegradable biopolymermulchingpolyethylene filmstraw
spellingShingle Jose Ignacio Marín-Guirao
Emilio Martín-Expósito
María del Carmen García-García
Miguel de Cara-García
Alternative Mulches for Sustainable Greenhouse Tomato Production
Agronomy
biodegradable biopolymer
mulching
polyethylene film
straw
title Alternative Mulches for Sustainable Greenhouse Tomato Production
title_full Alternative Mulches for Sustainable Greenhouse Tomato Production
title_fullStr Alternative Mulches for Sustainable Greenhouse Tomato Production
title_full_unstemmed Alternative Mulches for Sustainable Greenhouse Tomato Production
title_short Alternative Mulches for Sustainable Greenhouse Tomato Production
title_sort alternative mulches for sustainable greenhouse tomato production
topic biodegradable biopolymer
mulching
polyethylene film
straw
url https://www.mdpi.com/2073-4395/12/6/1333
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