01426nam a2200325 a 450000100080000000500110000800800410001910000160006024500940007626002160017052004150038665000170080165000140081865000130083265000190084565000260086465000210089065000100091165000240092165000290094565000140097465000120098865300170100065300130101765300110103065300120104165300110105365300200106470000160108416682102017-05-11       1999    bl uuuu     u00u1 u    #d1 aLEHMANN, J.  aTracer applications for assessing nutrient pathways in multi-strata agroforestry systems.  aIn: INTERNATIONAL SYMPOSIUM MULTI-STRATA AGROFORESTRY SYSTEMS WITH PERENNIAL CROPS, 1999, Turrialba. Multy-strata agroforestry systems with perennial crops: proceedings. Turrialba: CATIE, 1999. p. 175-179.c1999  aDiscussion on (i) the use of tracers with regard to nutrient fluxes, (ii) their applicability in multi-strata agroforestry systems, and (iii) the methodological approach of existing experiments. It was utilized the use of tracers for assessing nutrient pathways and how to apply tracer techniques. The results emphasize the need to exploit the potential of tracers for the advancement of agroforestry research.  aagroforestry  anutrients  aPueraria  asoil fertility  atropical rain forests  aBactris Gasipaes  aCacau  aFertilidade do Solo  aFloresta Tropical Úmida  aNutriente  aPupunha  aAgrofloresta  aAmazonas  aBrasil  aCycling  aManaus  aTheobrama cacao1 aMURAOKA, T.