Limits to recruitment of tall fescue plants in poplar silvopastoral systems of the Pampas, Argentina
- Clavijo, Maria del Pilar
- Cornaglia, Patricia Susana
- Gundel, Pedro Emilio
- Nordenstahl, Marisa
- Jobbagy Gampel, Esteban Gabriel
DOIAbstract
Forage production in silvopastoral systems of the Flooding Pampa is based on cool season grasses with a relatively asynchronous phenology regarding their accompanying deciduous trees. However, the productivity of cool season grasses in these systems is usually low. The hypothesis of this work is that the low productivity of cool season grasses is caused by tree litter constraining plant recruitment. Emergence and establishment (reproductive propagation), and tillering (vegetative propagation) patterns of tall fescue, a cool season grass in the region, were studied in two pairs of adjacent non-afforested and afforested poplar stands (tree age 26-28 years, tree density 453-797 plants ha-1). Observational and manipulative (i.e. addition of see...
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