Basic technics in ecological farming
Basic technics in ecological farming papers presented at the 2nd international conference held by the IFOAM, Montrez edited by Stuart Hill, Pierre Ott. - Basel, Switzerland Birkhauser Verlag, 1982. - 365 p. ill. 24 cm.
English and French.
3764313749
Organic farming
Agricultural ecology
Soil fertility
631.584(063) / I61P