na INLIS000000000000957 Ind 0010-1118000957 Green manure/cover crops and crop rotation in conservation agriculture on small farms FOOD AND AGRICULTURE ORGANIZATION FAO Rome FAO 2011 viii, 97 p. : ill. ; 25 cm.-- viii, 97 p. : ill. ; 25 cm.-- ISBN 978-92-3-106856-4 Sr.FAO.631.47 Bibl. : p. 95-97 Sr.FAO.631.47 SMALL FARS GREEN MANURES COVER CROPS CROPPING SYSTEM SUSTAINABILITY 463/FAO/2011-mfn1635 463/FAO/2011-mfn1636