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5 resultados encontrados para: AUTOR: Petit Aldana, Judith
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1.
- Artículo con arbitraje
Carbon stocks in biomass and soils of woody species fodder banks in the dry tropics of Mexico
Casanova Lugo, Fernando (autor) ; Petit Aldana, Judith (autora) ; Solorio Sánchez, Francisco Javier (autor) ; Ramírez Avilés, Luis (autor) ; Ward, Sheila Emily (autora) ; Villanueva López, Gilberto (autor) ; Aryal, Deb Raj (autor) ;
Disponible en línea
Contenido en: Soil Use and Management Vol. 34, no. 4 (December 2018), p. 500-509 ISSN: 2007-4476
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Resumen en: Inglés |
Resumen en inglés

Understanding carbon (C) dynamics of the silvopastoral systems can help mitigate greenhouse gas emissions. The aim of this study was to evaluate the C concentration and storage in above- and belowground tree biomass as well as in the soils of fodder banks of Leucaena leucocephala (Lam.) de Wit, Guazuma ulmifolia (Lam.) or a combination of the both species. The above- and belowground biomass was quantified by the destructive sampling. We also obtained samples from soil pits, 20-cm deep, and determined bulk density and organic carbon concentration. The mixed species banks produced more foliage dry matter (DM) (6.3 t DM/ha) than the pure fodder banks. The total living biomass stocks ranged from 31.5 to 33.5 t DM/ha and did not differ between fodder bank types. The tissue C concentration was greater in stems (45.1%) and roots (44.9%) compared to the foliage component (43.4%). Total soil carbon (TSC) in the 5–10 cm layer was greater in the fodder banks with legumes alone than in mixed species banks (35.7 vs. 30.8 t C/ha). TSC storage in the 15–20 cm layer was greater in the nonlegume fodder bank than in the legume fodder bank (39.8 vs. 34.5 t C/ha). However, to the 0–20 cm layer, TSC was similar for all fodder banks. Thus, the three types of fodder banks had similar total C storage in plant biomass and soil, but the production of foliage biomass was higher in the mixed species banks.


2.
Capítulo de libro
Almacenamiento de carbono en bancos de forraje de especies leñosas en Yucatán
Casanova Lugo, Fernando ; Petit Aldana, Judith (coaut.) ; Solorio Sánchez, Francisco (coaut.) ; Díaz Echeverria, Víctor Francisco (coaut.) ; Villanueva López, Gilberto (coaut.) ; Ramírez Avilés, Luis (coaut.) ; López Martínez, Jorge Omar (coaut.) ;
Contenido en: Estado actual del conocimiento del ciclo del carbono y sus interacciones en México: Síntesis a 2017 Texcoco, Estado de México, México : Programa Mexicano del Carbono, 2018 página 583-589 ISBN:978-607-96490-5-0
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
B9950 (Disponible)
Disponibles para prestamo: 1
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3.
Artículo
*En hemeroteca, SIBE-San Cristóbal
Forage yield and quality of Leucaena leucocephala and Guazuma ulmifolia in mixed and pure fodder banks systems in Yucatan, Mexico
Casanova Lugo, Fernando ; Petit Aldana, Judith (coaut.) ; Solorio Sánchez, Francisco Javier (coaut.) ; Parsons, David (coaut.) ; Ramírez Avilés, Luis (coaut.) ;
Contenido en: Agroforestry Systems Vol. 88, no. 1 (February 2014), p. 29-39 ISSN: 0167-4366
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
53373-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal
Resumen en: Inglés |
Resumen en inglés

In tropical areas of Mexico, Leucaena leucocephala is widely used in silvopastoral systems. However, little information exists on other native woody species of high forage potential, such as Guazuma ulmifolia. The aim of this study was to evaluate the components of biomass, forage yield and quality, and availability of N in fodder banks of L. leucocephala, G. ulmifolia, and a mixture of both species during dry and rainy seasons, under sub-humid tropical conditions. The experimental unit was a 5 9 10 m plot, containing three rows with 2 m between rows; each row had 20 plant positions with 0.50 m between plants.Within each plant position therewas either a single plant, in the case of purecrop, or two plants, in the case of mixed of both species. A complete randomized block design with three repetitions was used. In both seasons, therewere a significantly greater proportion of leaves in the G. ulmifolia fodder banks (71 %) and in mixed fodder banks (69 %) than in L. leucocephala fodder banks (64 %). Consequently, these systems had leaf-to-stem ratios of 2.4, 2.2 and 1.9, respectively.

The forage yield of fodder banks was not influenced by season. Themixed fodder bank had greater forage yield (5.1 t DM ha-1) than the L. leucocephala fodder bank (3.4 t DM ha-1) in each season. Additionally, the mixed fodder bank accumulated more forage yield during the experimental period (10.2 t DM ha-1 - year-1) than G. ulmifolia (9.0 t DM ha-1 year-1) or L. leucocephala (6.9 t DM ha-1 year-1). The concentrations of CP, C and C:N were not influenced by season. Forage NDF and ADF concentrations were greater in the rainy season (476 g kg-1 DM) compared with the dry season (325 g kg-1 DM). Mixed fodder banks had the greatest N yield (185.9 kg ha-1) and consequently the greatest availability of N (371.8 kg N ha-1 year-1). We conclude that mixed fodder banks of L. leucocephala and G. ulmifolia are a better option for improving productivity and forage quality in comparison with pure fodder banks in Yucatan, Mexico.


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Resumen en: Inglés |
Resumen en inglés

The first part of this chapter provides an introduction to Mexican livestock systems. The second part describes silvopastoral systems, which are recognized as a strategy for food production, including the integration of annual, forage, legumes, such as fenugreek (Trigonella foenum-graecum L.). The third part highlights the importance of silvopastoral systems for livestock production and how fenugreek can be integrated in to the diet of the Mexican livestock. Overall the current review discusses various agronomics aspects of intercropping with fenugreek mainly as a fodder bank for increased fodder yield and quality. In addition to improve animal diet, fenugreek can also increase soil nitrogen content. Based on this current review it can be concluded that integrating fenugreek into silvopastoral systems with livestock production could be a good sustainable solution to enhance biodiversity as well as increase the margin of profitability for local producers and growers.


5.
- Artículo con arbitraje
Productive potential of fenugreek (Fabaceae: Trigonella Foenum-Graecum L.) in Venezuela
Petit Aldana, Judith ; Noguera Savelli, Eliana (coaut.) ; Cetzal Ix, William Rolando (coaut.) ; Solorio Sánchez, Francisco Javier (coaut.) ; Infante Cruz, Ángel (coaut.) ;
Contenido en: American Journal of Social Issues and Humanities Special Issue (March/April 2014), p. 96-108 ISSN: 2276-6928
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Resumen en: Inglés |
Resumen en inglés

A bibliographical review about fenugreek (Trigonella foenum-graecum L.) botanical description, growth, and production was carried out, as well as its chemical composition, forage and medicinal quality with the goal to evaluate adaptation possibilities of this species to some ecoregions of Venezuela. Descriptions related to climate, vegetation, slope types and soils in Venezuela have been made, which are compared to fenugreek adaptation in other regions of the world. According to morphological characteristics and suitable conditions of altitude to introduce this species as a crop, it is necessary to identify seed sources more reliable and carry out quality site studies that identify appropriate areas to establish this species under crop production.