00578nam a2200145Ia 450000500170000008000180001724500760003526000330011130000110014450000070015552002220016258300190038494200120040399900170041520260716043129.0  a07.05.02 M985  aSustaining growth : soil fertility management in tropical smallholdings  bMargrafaWelkersheimDEc1994  a486 p.  aDC  aPresents a range of practices conducive to sustainable agriculture, including agroforestry; intensive fallowing and green manuring; the use of mulch; compost; stable manure and the deliberate use of natural symbionts.  c3/7/00kM2LMGR  cMmM985  c40957d40957