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- Isaac, Marney E.; Adjei, Eric O.; Issaka, Roland N.; Timmer, Vic R.
- Agroforestry systems 2011 v.81 no.2 pp. 147-155
- Theobroma cacao; cocoa products; shade; agroforestry; soil fertility; overstory; light intensity; early development; plant competition; crop management; precision agriculture; spatial variation; intercropping; Terminalia superba; seedlings; fertilizer rates; nutrient availability; plant nutrition; leaf area; nitrogen; phosphorus; nutrient uptake; Ghana
- ... Shade tolerant species response to nutrient additions and light regulation by canopy trees in perennial agroforestry systems has been well documented. However, accelerated early growth, particularly in cocoa-shade systems, may be offset by competition for limited resources on nutrient poor sites. To date, few agroforestry management strategies focus on nutrient manipulation of the shade tree compo ...
- Somarriba, Eduardo; Beer, John
- Agroforestry systems 2011 v.81 no.2 pp. 109-121
- Theobroma cacao; cocoa products; agroforestry; shade trees; timber production; forest trees; crop yield; forest plantations; nitrogen fixation; species differences; overstory; clones; genotype; pods; Moniliophthora roreri; Phytophthora palmivora; plant pathogenic fungi; fungal diseases of plants; disease incidence; vertebrate pests; tree growth; diameter; height; Costa Rica
- ... Timber production and cocoa yields were studied (initial 10-11 years) in two experimental plantations: a Cocoa-Legume system (CL, Erythrina poeppigiana, Gliricidia sepium or Inga edulis), and a Cocoa-Timber system (CT, Cordia alliodora, Tabebuia rosea or Terminalia ivorensis, plus I. edulis for inter-site comparisons). These trials had two major goals: (1) to evaluate the use of mono-specific timb ...