Long term study of agroforestry systems based on structured tree clusters. Long-term observations and research in forestry; proceedings. IUFRO S4.11 International Symposium Long-term Observations and Research in Forestry.

Zeide B Kleinn C, Michael Kohl, Eds, M R Anderberg, M B Rodriguez Gutierrez, Monica Beatriz Barrios,Luis Fernando Arias, J J San Jose,M Bigger, E O Boafo,O Brenes, G A Enriquez

mag（1999）

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sol,numerical taxonomy,tropical zones,pruning,geography,cultivar,disease resistance,sampling,cartography,identification,cultivars

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