Abstract
The profile distribution of total and extractable B was determined in 16 Nigerian cacao-growing soil profiles formed from different parent materials. Total B for all soils ranged from 8 to 54μgg−1 with a mean of 24μgg−1. The soils formed from sandstones in the rainforest zone contained higher amounts of total B than soils derived from basement complex. Boron extractable in hot water, in 0.1% CaCl2, and in 1N NH4OAc varied from 0.13 to 1.38, 0.44 to 1.20 0.03 to 0.56μgg−1 respectively. The corresponding means were 0.66, 0.75 and 0.27μgg−1 B. Soils on metamorphic rocks gave the highest values. All extractable B values were related to organic matter while only CaCl2-extractable B correlated with total B. Generally total and extractable B values were higher in the top soils than in the subsoils.
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Chude, V. The profile distribution of total and extractable boron in cacao-growing soils in southwestern Nigeria. Plant Soil 107, 293–295 (1988). https://doi.org/10.1007/BF02370560
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DOI: https://doi.org/10.1007/BF02370560