China azolla propagation and small-scale biogas technology.

Detalles Bibliográficos
Autor Corporativo:	Food and Agriculture Organization of the United Nations
Formato:	Libro
Idioma:	English
Publicado:	Rome FAO 1979.
Series:	FAO soils bulletin 41.
Subjects:	Azolla > Econ. aspects. Ferns > China. Waste products as fuel. Biogas.