Submitted to: Soil Science and Plant Nutrition (SSPN)
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 28, 2005
Publication Date: November 1, 2005
Citation: Baligar, V.C., Fageria, N.K. 2005. Aluminum influence on growth and uptake of micronutrients by cacao.. Soil Science and Plant Nutrition (SSPN). 151:7009-7013. Interpretive Summary: In tropical regions cacao is grown on a wide range of soil types, and most of these soils are leached, acidic and infertile. On such soils aluminum toxicity and deficiencies of micronutrients are major yield limiting factors for cacao. Information is limited concerning the influence of soil aluminum on growth and uptake and utilization of micronutrients by cacao. The results obtained showed that higher soil aluminum levels might reduce cacao growth significantly. Reduction of soil acidity constraints with addition of lime, and application of micronutrients appears to be key factors in improving yield potential of cacao growth on degraded leached tropical soils. These findings are helpful to tropical farmers managing sustainable cacao production on degraded acid soils of the cacao grwoing region of South America.