Artículo
Catch crops in the Argentinean Pampas: A synthesis-analysis on nutrient characteristics and their implications for a sustainable agriculture
Fecha de publicación:
12/2023
Editorial:
Frontiers Media
Revista:
Frontiers in Agronomy
e-ISSN:
2673-3218
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Catch crops (CCs) are crops that grow between two cash crops, accumulating nutrients in their biomass and later releasing them through the decomposition of their residues. To our knowledge, no study has compared the nutrient-related traits of different CCs species. This comparison is essential for understanding the possible roles of CCs in agroecosystems and for optimizing adjustments of fertilizer rates. This study aims to: i) synthesize characteristics of the CCs, such as aboveground dry matter accumulation, nutrient [carbon (C), nitrogen (N), sulfur (S), and phosphorus (P)] concentration and accumulation, and C:nutrient ratios, ii) explore factors defining the mentioned characteristics, and iii) discuss their implications on the ecosystem services provided. By analyzing data from 52 studies, (98 site-years) in the Argentinean Pampas, we observed that grasses (excluding ryegrass) accumulated the greatest aboveground dry matter (6.08 ± 0.22 t ha-1, mean ± SE) and C (2.60 ± 0.13 t ha-1), making them suitable for protecting the soil surface from erosion, suppressing weeds, and improving C balances. Conversely, vetch accumulated the highest nutrient content (118 ± 5.3, 15 ± 1.5, and 14 ± 1.2 kg ha-1 for N, S, and P, respectively) with the lowest C: nutrient ratio (means of 15:1, 152:1, and 147:1 for N, S, and P, respectively), making it a suitable choice for recycling nutrients and providing extra N. Mixtures presented intermediate characteristics between the monocultures, allowing a balanced provision of the mentioned ecosystem services. Furthermore, the results showed that dry matter accumulation affected the nutrient-related traits analyzed, and it was related to different factors, such as CCs sowing and termination dates or precipitation. The analysis highlights the importance of selecting CCs species based on the desired ecosystem service and provides valuable information for producers as well as for modeling C balances and nutrient cycling.
Palabras clave:
COVER CROPS
,
SPECIES
,
NITROGEN
,
PHOSPHORUS
,
SULFUR
,
CARBON
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (IPADS BALCARCE)
Articulos de INSTITUTO DE INNOVACIÓN PARA LA PRODUCCIÓN AGROPECUARIA Y EL DESARROLLO SOSTENIBLE
Articulos de INSTITUTO DE INNOVACIÓN PARA LA PRODUCCIÓN AGROPECUARIA Y EL DESARROLLO SOSTENIBLE
Citación
Cafaro la Menza, Francisco; Carciochi, Walter Daniel; Catch crops in the Argentinean Pampas: A synthesis-analysis on nutrient characteristics and their implications for a sustainable agriculture; Frontiers Media; Frontiers in Agronomy; 5; 1244057; 12-2023; 1-10
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