@article{PAR00003216, title = {{E}ffect of spatial heterogeneities of water fluxes and application pattern on cadusafos fate on banana-cultivated andosols}, author = {{S}aison, {C}arine and {C}attan, {P}. and {L}ouchart, {X}. and {V}oltz, {M}arc}, editor = {}, language = {{ENG}}, abstract = {{I}n tropical humid environments under intensive banana production, pesticide transfer in waters can be of particular concern due to heavy rainfall, steep slopes, and soils with high infiltration capacities. {T}he transfer in percolation and runoff waters of the nematicide cadusafos was investigated during a three month field experiment. {T}he spatial heterogeneity of the banana plantation was taken into account by measuring percolation fluxes both under the banana plants and in the interrows with a specially designed lysimeter device installed at 60 cm depth. {A}t the field scale, 0.34% of the pesticide applied was transferred in percolation, 0.13% in runoff. {F}orty-nine percent of cadusafos losses occurred by percolation under the banana plants, 23% by interrow percolation, and 28% by runoff. {L}osses were highest during the three weeks following cadusafos application, and this is also when dissipation in the soil was highest (calculated half-life in the soil: 7d). {A}fter this period, losses of cadusafos were low, both in soil and waters. {U}nder the banana plant, saturated fluxes carried most of the pesticide, despite total percolation fluxes being at least five-times higher than saturated ones. {A}lthough overall pesticide transfer in water was low (0.5% of applied), it was not negligible due to the frequency of pesticide application in these areas.}, keywords = {{R}unoff ; infiltration ; lysimeters ; andosols ; pesticide ; banana ; plantations ; {F}rench {W}est {I}ndies}, booktitle = {}, journal = {{J}ournal of {A}gricultural and {F}ood {C}hemistry}, volume = {56}, numero = {24}, pages = {11947--11955}, ISSN = {0021-8561}, year = {2008}, DOI = {10.1021/jf802435c}, URL = {https://www.documentation.ird.fr/hor/{PAR}00003216}, }