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Sunday, February 06, 2005

Crucial study: Gaydou et al, 1982

In a startling study, Gaydou et al. (1982) compare several possible energy species with potential to grow in Malagasy. Oil palm was considered energetically most promising.


Crop production
MT/ha
Fuel production
/ha
Energetic equivalent
kwh/ha
Elaeis guineensis 18–20 3,600–4,000 33,900–37,700
Jatropha curcas 6–8 2,100–2,800 19,800–26,400
Aleurites fordii 4–6 1,800–2,700 17,000–25,500
Saccharum officinarum 35 2,450 16,000
Ricinus communis 3–5 1,200–2,000 11,300–18,900
Manihot eaculenta 6 1,020 6,600

Gaydou, A.M., Menet, L., Ravelojaona, G., and Geneste, P. 1982. Vegetable energy sources in Madagascar: ethyl alcohol and oil seeds (French). Oleagineux 37(3):135–141.

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