Sorghum growth in acid soils of West Africa: variations in soil chemical properties

Three field experiments were conducted to alleviate soil chemical properties associated with poor early growth of sorghum [Sorghum bicolor (L) Moench] in selected Grossarenic and Plinthic Paleustalfs or Eutric Nitosols of subhumid West Africa. These experiments were implemented for two growing seaso...

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Bibliographic Details
Published in:Arid land research and management 1998-04, Vol.12 (2), p.179-190
Main Authors: Doumbia, M.D, Hossner, L.R, Onken, A.B
Format: Article
Language:English
Subjects:
acid soils
Al toxicity
animal manures
cation exchange capacity
efficiency
exchangeable aluminum
growth
lime
manure
nutrient sources
P deficiency
phosphate rock
poor early growth
rock phosphate
soil chemistry
soil fertility
soil organic matter
soil pH
sorghum
Sorghum bicolor
spatial variability
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Summary:Three field experiments were conducted to alleviate soil chemical properties associated with poor early growth of sorghum [Sorghum bicolor (L) Moench] in selected Grossarenic and Plinthic Paleustalfs or Eutric Nitosols of subhumid West Africa. These experiments were implemented for two growing seasons on the same plots. Soil amendments used (lime, manure, Tilemsi phosphate rock, and water-soluble P source) significantly increased soil pH (5.1-7.8), decreased exchangeable Al 3+ (0.48-0 cmol c kg −1 ), and increased Bray-1 P content (7.1-48.5 mg kg −1 ), organic C content (0.19-0.51), and ECEC (1.30-3.10 cmol c kg −1 ). The net effects of such improvements were excellent sorghum growth and yield in the first growing season. However, most sorghum seedlings failed to grow in the second growing season. Affected sorghum seedlings had deficient contents of P (
ISSN:0890-3069
1532-4982
1521-0405
DOI:10.1080/15324989809381507