Nutrient fluxes from litterfall in mixed cropping systems of the central Amazonia.
2020
UGUEN, K. | BERNHARD-REVERSAT, F. | LUIZAO, J. P. | SILVA JUNIOR, J. P. da | SCHROTH, G.
The aim of this study was to quantify nutrient fluxes from litter fall and prunings in an agroforestry system and to determine differences associated with fertilization. The speceis used are: Bertholletia excelsa (castanha-do-Para), Bactris grasipaes (pupunha),Bixa orellana (urucu), Theobroma grandiflorum (cupuacu) and Pueraria phaseoloides as a cover crop. Annual litterfall in the agroforestry system was greater in the high fertilization treatment (1,56 t/ha) than in the low (1,42 t/ha) but the difference was not significant. Prunings were higher in the hig fertilization treatment than in the low, both from peach palm (1,33 t/ha and 1,04 t/ha) and urucu (1,79 t/ha and 1,15 t/ha).
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