Impacto de Alnus acuminata Kunth en los flujos de N2O y calidad del pasto Pennisetum clandestinum Hochst. ex Chiov.

Parra, Amanda Silva; Rodríguez, Seydyss Garay; Insuasti, Arturo Samuel Gomez

doi:10.14483/2256201x.11629

Cited by 8 publications

(10 citation statements)

References 7 publications

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“…Conant et al 60 ,. which reviewed about 115 studies in 17 countries to investigate the effects of grazing management on soil organic matter, found soil C sequestration rates that ranged from ‐0.2 to +3.0 t C ha −1 yr −1 , similar to the values reported by Silva and Orozco 32 and Parra et al 54 . as shown in Table 3.…”

Section: Resultssupporting

confidence: 76%

“…A fertilization plan based on annual nitrogen balance through of the introduction of leguminous crops at the farm level is necessary to reduce N 2 O emissions. For example, a 100 kg N ha −1 reduction in mineral fertilization in P. clandestinum pastures could be achieved using biological N fixation by Alnus acuminate , a leguminous species that can fix atmospheric N through symbiosis with bacteria in the tropical zone of Colombia 54 . In silvopastoral systems that include legumes, low soil nitrogen fertilizer inputs reduce potential nitrous oxide emissions 49 .…”

Section: Resultsmentioning

confidence: 99%

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Greenhouse gas balance and mitigation potential of agricultural systems in Colombia: A systematic analysis

2021

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Agriculture is widely recognized as a source of considerable greenhouse gas (GHG) emissions, with opportunities for mitigation. The limited capacity to identify and collect reliable activity data and to quantify emissions by sources and removals by sinks needs to be addressed. One proposed solution is to adapt IPCC methodologies that include estimations of both CO2 emissions and carbon sequestration in agricultural systems, which were applied to Colombia at the farm level in this study. The aim of this work was to provide an assessment of GHG balances through these IPCC methodologies to identify potential GHG mitigation in sustainable agricultural systems used in Colombia that provide acceptable GHG trade‐offs to the atmosphere. Agroforestry systems made the largest contribution to this mitigation potential because of the potential to sequester carbon in both soil and biomass, giving a negative GHG emission to the atmosphere. GHG balance analysis at the Colombian farm level indicated that conventional agriculture with pastures of Pennisetum clandestinum in rotation with potatoes (PRP) in the Andean zone of Nariño (Colombia) is a large emitter of GHG with 9.1 ton CO2eq ha−1 year−1. On the other hand, in livestock systems in the Andean zone (Antioquia), intensive silvopastoral systems with 500 Eucalyptus tereticornis trees ha−1 (SSPi) on pastures is a great neutralizer of GHG emissions, accounting for −26.6 t CO2eq ha−1 year−1. Agroforestry systems play a leading role, as crop rotation and improved pastures can represent a GHG mitigation opportunity for sustainable agricultural production at the farm level in Colombia. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Resultssupporting

confidence: 76%

Section: Resultsmentioning

confidence: 99%

Greenhouse gas balance and mitigation potential of agricultural systems in Colombia: A systematic analysis

2021

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“…In this sense, AFS contributes greatly to SOM formation and thus return significant amounts soilplant nutrients cycling (Rojas et al, 2017), directly affecting soil micronutrients, our result implies that CAF and CYF showed high soil fertility, less Cu and S in CYF under DS, probably AFS are an important strategies for to mantein SOM and high soil fertility in DS. CAF also can be a very good alternative for tropical zones under DS, allowing a better interaction of Acacia tree rhizosphere with soil microorganisms such as N-fixing bacteria's (Nair et al, 2010;Silva-Parra et al, 2018). Organic matter added through leaf litter in AFS, usually improves soil quality as it enhances its soil microorganism activity and nutrients concentration (Hossain et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Agroforestry systems (AFS) not only help improve the fertility of tropical soils, they also contribute to the soil C sequestration, and mitigate the negative impacts caused by global climate change (Mbow et al, 2014), as they also reduce the chemical fertilization that contributes to the high N 2 O emissions to the environment (Silva-Parra et al, 2018). For a cocoa crop with 48 months older is required 438 kg.N.ha -1 ; 48 kg.ha -1 P; 633 kg.ha -1 K; 373 kg.ha -1 Ca and 129 kg.ha -1 Mg (Leiva, 2012).…”

Section: Introductionmentioning

confidence: 99%

Agroforestry systems of <i>Theobroma cacao</i> L. affects soil and leaf litter quality

Mendoza

Parra

2020

Colomb. for.

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The objective of this study was to determine the effect of Agroforestry systems (AFS) and non-AFS of Theobroma cacao L. on soil and leaf litter quality, during rainy (RS) and dry (DS) seasons in a tropical zone. The treatments were T. cacao crop (CC), Yopo forestry (Anadenanthera peregrina L.) Speg. (YF), Acacia forestry (Acacia mangium Willd.) (AF), Agroforestry system of T. cacao + Yopo forestry (CYF), Agroforestry system of T. cacao + Acacia forestry (CAF), arranged in random design in the field. Leaf litter production was highest in CC (0.79 and 0.73 ton.ha-1) during RS and DS, respectively. CC and AFS improved soil fertility, less Mg in CC; AFS leaf litter quality, CAF in DS and CYF in both seasons, less B and S in DS. AFS can be a solution in tropical zones to solve the problems of low soil fertility.

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“…En sistemas silvopastoriles de trópico alto, el botón de oro (Tithonia diversifolia) y el aliso (Alnus acuminata) se perfilan como opciones para combinar con las pasturas. El aliso es un árbol que se emplea para la obtención de madera, leña y para la protección del suelo y el reciclaje de nutrientes y se le atribuyen características para la restauración ecológica de suelos, posee densidad de follaje media que permite la entrada de luz a las gramíneas y es una especie fijadora de nitrógeno el trópico alto (Molina et al, 2008;Silva et al, 2017) y el botón de oro es una especie arbustiva de hojas simples alternadas e inflorescencia amarilla y que presenta muy buen desempeño en condiciones de trópico alto por su rusticidad, su alto valor nutricional, su alta tasa de producción de biomasa, su adaptación a suelos ácidos y de baja fertilidad, su capacidad de restauración de suelos degradados, su rápido crecimiento y capacidad de rebrote después de su cosecha (Murgueitio et al, 2011;Zapata y Vargas, 2014;Mahecha, 2002;Mahecha et al, 2018).…”

Section: Introductionunclassified

Comparación productiva y de calidad en leche de vacas Holstein pastoreando en diferentes sistemas del trópico alto

et al. 2021

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Se comparó el efecto del pastoreo de vacas Holstein en diferentes sistemas, sobre la producción y calidad de la leche. Los sistemas pastoriles (SP) evaluados fueron: kikuyo (Cenchrus clandestinus (Hochst. ex Chiov.) Morrone) (K), ryegrass (Lolium ssp.) (R), sistemas silvopastoriles de ryegrass, botón de oro (Tithonia diversifolia) y aliso (Alnus acuminata) (sspR), sistemas silvopastoriles de kikuyo, botón de oro y aliso (sspK) y sistemas silvopastoriles de ryegrass, kikuyo, botón de oro y aliso (sspRK). Las variables respuestas estuvieron dadas por la cantidad diaria de leche (PL), lactosa (L), grasa (G) y proteína (P), los porcentajes de proteína (% P) y grasa (% G) y niveles de nitrógeno ureico en leche (MUN) de 60 vacas holstein de 1 a 6 partos. Se emplearon modelos mixtos aditivos generalizados con efecto semiparamétrico suavizado para los días en lactancia (DEL), los efectos fijos de SP, número de partos y el efecto aleatorio de lactancia de las vacas. Los resultados indicaron ventajas en PL, L, P y G del SspR sobre los otros sistemas (P < 0.05), demostrando el potencial de los sistemas silvopastoriles en trópico alto exponiendo la importancia de la diversificación de especies en las praderas.

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Impacto de Alnus acuminata Kunth en los flujos de N2O y calidad del pasto Pennisetum clandestinum Hochst. ex Chiov.

Cited by 8 publications

References 7 publications

Greenhouse gas balance and mitigation potential of agricultural systems in Colombia: A systematic analysis

Greenhouse gas balance and mitigation potential of agricultural systems in Colombia: A systematic analysis

Agroforestry systems of <i>Theobroma cacao</i> L. affects soil and leaf litter quality

Comparación productiva y de calidad en leche de vacas Holstein pastoreando en diferentes sistemas del trópico alto

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