Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis

Growers are interested in biodegradable alternatives to petroleum-based polyethylene mulch film (PEM). However, many growers cite limited knowledge about biodegradable mulch films (BDMs) as a significant barrier to adoption. Agronomic field tests of BDMs are often limited temporally or spatially, an...

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Main Authors: Mauro B. D. Tofanelli, Sam E. Wortman
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/10/10/1618
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author Mauro B. D. Tofanelli
Sam E. Wortman
author_facet Mauro B. D. Tofanelli
Sam E. Wortman
author_sort Mauro B. D. Tofanelli
collection DOAJ
description Growers are interested in biodegradable alternatives to petroleum-based polyethylene mulch film (PEM). However, many growers cite limited knowledge about biodegradable mulch films (BDMs) as a significant barrier to adoption. Agronomic field tests of BDMs are often limited temporally or spatially, and the variability of performance results relative to PEM may be contributing to this perceived knowledge gap. Our objective was to use data available in the scientific literature to provide the first quantitative performance benchmark of BDMs against PEM. We extracted data from 66 articles for meta-analysis. Response ratios were calculated for comparison of BDMs relative to black PEM, and differences among categorical groups were determined using 95% bootstrap confidence intervals. Overall, BDMs reduced soil temperature by 4.5% ± 0.8% (±one standard error) compared to PEM, and temperatures were coolest beneath paper-based BDM. Starch-polyester BDM was less effective than PEM for weed control, but paper-based BDM reduced weed density and biomass by 85.7% ± 9.2%. Paper-based BDMs were particularly useful for controlling <i>Cyperus</i> spp. weeds. Despite differences in soil temperature and weed suppression, crop yields were not different between BDMs and PEM. Future research should focus on reducing costs, adding functional value, and increasing the biodegradability of BDMs.
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spelling doaj.art-1587a128bf6547e9a642e7d11c6adc022023-11-20T17:59:27ZengMDPI AGAgronomy2073-43952020-10-011010161810.3390/agronomy10101618Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-AnalysisMauro B. D. Tofanelli0Sam E. Wortman1Agricultural Sciences Sector, Federal University of Paraná, Rua dos Funcionários, 1540, Cabral 80035-050, Curitiba-PR, BrazilDepartment of Agronomy and Horticulture, University of Nebraska–Lincoln, 279 Plant Sciences Hall, Lincoln, NE 68583, USAGrowers are interested in biodegradable alternatives to petroleum-based polyethylene mulch film (PEM). However, many growers cite limited knowledge about biodegradable mulch films (BDMs) as a significant barrier to adoption. Agronomic field tests of BDMs are often limited temporally or spatially, and the variability of performance results relative to PEM may be contributing to this perceived knowledge gap. Our objective was to use data available in the scientific literature to provide the first quantitative performance benchmark of BDMs against PEM. We extracted data from 66 articles for meta-analysis. Response ratios were calculated for comparison of BDMs relative to black PEM, and differences among categorical groups were determined using 95% bootstrap confidence intervals. Overall, BDMs reduced soil temperature by 4.5% ± 0.8% (±one standard error) compared to PEM, and temperatures were coolest beneath paper-based BDM. Starch-polyester BDM was less effective than PEM for weed control, but paper-based BDM reduced weed density and biomass by 85.7% ± 9.2%. Paper-based BDMs were particularly useful for controlling <i>Cyperus</i> spp. weeds. Despite differences in soil temperature and weed suppression, crop yields were not different between BDMs and PEM. Future research should focus on reducing costs, adding functional value, and increasing the biodegradability of BDMs.https://www.mdpi.com/2073-4395/10/10/1618biomulchmulchingsustainable agriculturebiobased products
spellingShingle Mauro B. D. Tofanelli
Sam E. Wortman
Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis
Agronomy
biomulch
mulching
sustainable agriculture
biobased products
title Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis
title_full Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis
title_fullStr Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis
title_full_unstemmed Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis
title_short Benchmarking the Agronomic Performance of Biodegradable Mulches against Polyethylene Mulch Film: A Meta-Analysis
title_sort benchmarking the agronomic performance of biodegradable mulches against polyethylene mulch film a meta analysis
topic biomulch
mulching
sustainable agriculture
biobased products
url https://www.mdpi.com/2073-4395/10/10/1618
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