Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region

Grain corn is the main cereal produced in Portugal. It is grown in intensive monoculture cropping systems that may have negative effects on soil quality, affecting long-term fertility and productivity, and, therefore, the sustainability of the production. A promising management practice to mitigate...

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Autores principales:	Boulet Anne Karine, Alarcão Carlos, Ferreira Carla, Kalantari Zahra, Veiga Adelcia, Campos Lara, Ferreira António, Hessel Rudi
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	cover crop grain corn nutrient supply leaching weed control mediterranean region Agriculture S Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/9da4ba46c2384729bfab4724be5cf951
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spelling	oai:doaj.org-article:9da4ba46c2384729bfab4724be5cf9512021-12-05T14:10:59ZAgro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region2391-953110.1515/opag-2021-0041https://doaj.org/article/9da4ba46c2384729bfab4724be5cf9512021-10-01T00:00:00Zhttps://doi.org/10.1515/opag-2021-0041https://doaj.org/toc/2391-9531Grain corn is the main cereal produced in Portugal. It is grown in intensive monoculture cropping systems that may have negative effects on soil quality, affecting long-term fertility and productivity, and, therefore, the sustainability of the production. A promising management practice to mitigate soil degradation is to grow winter cover crops used as green manure. This study examined the effectiveness of six legume cover crops (LCCs) species in providing agro-ecological services for grain corn systems in the Mediterranean region, specifically in terms of nutrient leaching, nutrient recycling, weed control, and soil fertility. The study was performed in Central Portugal during 2 years, and it assessed legumes/weeds dry biomass yield, their nutrients content, and soil organic matter evolution. Results show that, in general, LCC are well adapted to Mediterranean conditions, yielding large amounts of biomass (up to 8 ton/ha for some clover species). In terms of nutrient leaching mitigation, the overall N–P–K nutrient uptake was 176–20–172 kg/ha. Green manure services enabled a reduction of 35% of N, 50% of P, and 100% of mineral fertilizers for a grain corn production of 12 ton/ha. Weed control by LCC was effective only in the second year of the study and for three clover species (crimson, balansa, and arrowleaf) due to their early establishment and/or high biomass production competing with weeds. Soil fertility was not improved in the short term, LCC incorporation into the soil to a slight depletion of the soil organic matter content.Boulet Anne KarineAlarcão CarlosFerreira CarlaKalantari ZahraVeiga AdelciaCampos LaraFerreira AntónioHessel RudiDe Gruyterarticlecover cropgrain cornnutrient supplyleachingweed controlmediterranean regionAgricultureSAgriculture (General)S1-972ENOpen Agriculture, Vol 6, Iss 1, Pp 609-626 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cover crop grain corn nutrient supply leaching weed control mediterranean region Agriculture S Agriculture (General) S1-972
spellingShingle	cover crop grain corn nutrient supply leaching weed control mediterranean region Agriculture S Agriculture (General) S1-972 Boulet Anne Karine Alarcão Carlos Ferreira Carla Kalantari Zahra Veiga Adelcia Campos Lara Ferreira António Hessel Rudi Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region
description	Grain corn is the main cereal produced in Portugal. It is grown in intensive monoculture cropping systems that may have negative effects on soil quality, affecting long-term fertility and productivity, and, therefore, the sustainability of the production. A promising management practice to mitigate soil degradation is to grow winter cover crops used as green manure. This study examined the effectiveness of six legume cover crops (LCCs) species in providing agro-ecological services for grain corn systems in the Mediterranean region, specifically in terms of nutrient leaching, nutrient recycling, weed control, and soil fertility. The study was performed in Central Portugal during 2 years, and it assessed legumes/weeds dry biomass yield, their nutrients content, and soil organic matter evolution. Results show that, in general, LCC are well adapted to Mediterranean conditions, yielding large amounts of biomass (up to 8 ton/ha for some clover species). In terms of nutrient leaching mitigation, the overall N–P–K nutrient uptake was 176–20–172 kg/ha. Green manure services enabled a reduction of 35% of N, 50% of P, and 100% of mineral fertilizers for a grain corn production of 12 ton/ha. Weed control by LCC was effective only in the second year of the study and for three clover species (crimson, balansa, and arrowleaf) due to their early establishment and/or high biomass production competing with weeds. Soil fertility was not improved in the short term, LCC incorporation into the soil to a slight depletion of the soil organic matter content.
format	article
author	Boulet Anne Karine Alarcão Carlos Ferreira Carla Kalantari Zahra Veiga Adelcia Campos Lara Ferreira António Hessel Rudi
author_facet	Boulet Anne Karine Alarcão Carlos Ferreira Carla Kalantari Zahra Veiga Adelcia Campos Lara Ferreira António Hessel Rudi
author_sort	Boulet Anne Karine
title	Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region
title_short	Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region
title_full	Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region
title_fullStr	Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region
title_full_unstemmed	Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region
title_sort	agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the mediterranean region
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/9da4ba46c2384729bfab4724be5cf951
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Agro-ecological services delivered by legume cover crops grown in succession with grain corn crops in the Mediterranean region

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