Redistribuicao e lixiviacao de fungicida a base de cobre aplicado sobre cacaual por via aérea e terrestre
The effect of rainfall on the redistribution and leaching of monthly applied cuprous oxide fungicide was evaluated as part of a study on the efficiency of aerial spraying in the control of cacao black pod disease. Treated areas included both shaded and unshaded cacao trees. The experiment was designed in random blocks with four treatments in a factorial arrangement and three replications. Levels of leached copper were expressed for each of the 5 months of the experiment and represented as accumulated values ("periods") of 3 weekly determinations in each month. The treatment ultra low volume, ground spraying, resulted in the highest amounts of leached copper. When the treatments were compared, the amount of leached copper from the cacao canopy and trunk and in the dephts of 5 and 15 cm in the soil was found to be significantly
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| Format: | biblioteca |
| Published: |
1980
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| Subjects: | THEOBROMA CACAO, PHYTOPHTHORA, PODREDUMBRES, ENFERMEDADES FUNGOSAS, FUNGICIDAS, PULVERIZACION, APLICACION FOLIAR, COMPUESTO ORGANICO DEL COBRE, |
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