China azolla propagation and small-scale biogas technology.

Dettagli Bibliografici
Ente Autore:	Food and Agriculture Organization of the United Nations
Natura:	Libro
Lingua:	English
Pubblicazione:	Rome FAO 1979.
Serie:	FAO soils bulletin 41.
Soggetti:	Azolla > Econ. aspects. Ferns > China. Waste products as fuel. Biogas.