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Assessing and modeling the role of the native legume Lupinus meridanus in fertility restoration in a heterogeneous mountain environment of the tropical Andes
(Agriculture, Ecosystems and Environment 159 (2012) 29-39, 2012)
The role of the native legume Lupinus meridanus on fertility restoration in long fallow agriculture of the Venezuelan Andes was analyzed using field and laboratory data and a process-based model of succession (FAPROM). L. ...
Avian nectar robbers of Passiflora mixta (Pasifloraceae): Do they have a positive effect on the plant?
(Interciencia 36(8): 587-592, 2011-08-05)
The effect of nectar robbing on plant reproduction may be negative, positive or neutral. The effect was evaluated on Passiflora mixta, an Andean high-mountain species that is pollinated
by the Sword-billed Hummingbird ...
Degradación de laderas durante el ciclo triguero en Los Andes venezolanos y factores que limitan su restauración
(Herrera, F., Herrera, I. (Eds): La restauración ecológica en Venezuela. Fundamentos y experiencias. Ediciones IVIC. Altos de Pipe, Venezuela. pp. 17-34, 2011)
En los Andes venezolanos el trigo fue introducido poco tiempo después de la llegada de los españoles y continuó por casi 400 años, principalmente en los valles secos interandinos, entre los 2.000 y 3.600 m de altitud, ...
The use of organic substrates with contrasting C/N ratio in the regulation of nitrogen use efficiency and lossesin a potato agroecosystem
(Nutrient Cycl Agroecosystems 88(3): 411–427, 2010-12-01)
The effect of the application of organic
amendments of contrasting C/N ratio, combined with mineral N fertilizer, on the N budget of a potato crop was evaluated. The hypothesis was that the combination of substrates of ...