01304nam a2200265 a 450000100080000000500110000800800410001902000180006010000160007824500910009426000440018530000160022952004580024565000310070365000200073465000170075465000190077165000170079065300770080765300410088465300290092565300300095465300340098470000200101818791692011-06-16       2002    bl uuuu     u0uu1 u    #d  a0-85199-593-41 aSCHROTH, G.  aTrees, crops and soil fertilitybconcepts and research methods.h[electronic resource]  aWallingford:CABI Publishing:2002.c2002  axii + 437 .  aThis book contains seventeen chapters discussing the economic and biological aspects of soil use and research in agroforestry, with an emphasis on nutrient-poor forest and savanna soils. Topics covered include the economics of soil fertility management, cycling of water, nutrients and organic matter, soil structure, soil water, root systems, soil biological processes (e.g. nitrogen fixation, mycorrhizas and rhizosphere), soil macrofauna and erosion.  anatural resource economics  aplant nutrition  asoil biology  asoil fertility  asoil physics  aAgroforestry and Multipurpose Trees: Community, Farm and Social Forestry  aErosion: Soil and Water Conservation  aForests and Forest Trees  aGrasslands and Rangelands  aSoil Chemistry and Mineralogy1 aSINCLAIR, F. L.