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Phosphorus fertilization in a tropical acid soil under simulated slash and burn conditions: effects on uptake and adsorption of phosphorus

(2002) AGROCHIMICA. 46(6). p.291-303
Author
Organization
Abstract
A greenhouse and P adsorption studies were carried out to assess the influence of P fertilization on availability and adsorption of phosphorus, in a tropical acid soil sample submitted to simulated slash and burn conditions, by adding 4 g.kg(-1) wood ash to the soil. Corn (Zea mays L.) was used as a plant-test for the pot experiment. Plants were harvested four weeks after sowing. The dry matter, P uptake as well as soil extractable P were determined. Phosphorus adsorption was investigated on soil samples of the pot experiment. Application of a P-fertilizer increased extractable P and decreased the P adsorption capacity of the soil. This resulted in increased P uptake by plants. The beneficial effects brought about wood ash, notably the increased pH neutralisation of exchangeable Al in the soil, enhanced P response similar to that found in lion acid soils. In these conditions, P uptake was correlated positively to extractable P and negatively to P adsorption maxima. The close relationships obtained between P adsorption maxima and extractable P can be used as a means of estimating P- fertilizer recommendations. This presumes a positive response to P-fertilizers in tropical acid soils after slash and burn. Field studies must be undertaken to confirm this findings and to determine the influence of some factors.
Keywords
PHOSPHATE SORPTION, WOOD ASH, AVAILABILITY, DESORPTION, GROWTH, FOREST, EXTRACTANTS, PARAMETERS, NUTRIENTS, POTASSIUM

Citation

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Chicago
Voundi Nkana, JC, Alex Demeyer, and Marc Verloo. 2002. “Phosphorus Fertilization in a Tropical Acid Soil Under Simulated Slash and Burn Conditions: Effects on Uptake and Adsorption of Phosphorus.” Agrochimica 46 (6): 291–303.
APA
Voundi Nkana, J., Demeyer, A., & Verloo, M. (2002). Phosphorus fertilization in a tropical acid soil under simulated slash and burn conditions: effects on uptake and adsorption of phosphorus. AGROCHIMICA, 46(6), 291–303.
Vancouver
1.
Voundi Nkana J, Demeyer A, Verloo M. Phosphorus fertilization in a tropical acid soil under simulated slash and burn conditions: effects on uptake and adsorption of phosphorus. AGROCHIMICA. 2002;46(6):291–303.
MLA
Voundi Nkana, JC, Alex Demeyer, and Marc Verloo. “Phosphorus Fertilization in a Tropical Acid Soil Under Simulated Slash and Burn Conditions: Effects on Uptake and Adsorption of Phosphorus.” AGROCHIMICA 46.6 (2002): 291–303. Print.
@article{152337,
  abstract     = {A greenhouse and P adsorption studies were carried out to assess the influence of P fertilization on availability and adsorption of phosphorus, in a tropical acid soil sample submitted to simulated slash and burn conditions, by adding 4 g.kg(-1) wood ash to the soil. Corn (Zea mays L.) was used as a plant-test for the pot experiment. Plants were harvested four weeks after sowing. The dry matter, P uptake as well as soil extractable P were determined. Phosphorus adsorption was investigated on soil samples of the pot experiment. Application of a P-fertilizer increased extractable P and decreased the P adsorption capacity of the soil. This resulted in increased P uptake by plants. The beneficial effects brought about wood ash, notably the increased pH neutralisation of exchangeable Al in the soil, enhanced P response similar to that found in lion acid soils. In these conditions, P uptake was correlated positively to extractable P and negatively to P adsorption maxima. The close relationships obtained between P adsorption maxima and extractable P can be used as a means of estimating P- fertilizer recommendations. This presumes a positive response to P-fertilizers in tropical acid soils after slash and burn. Field studies must be undertaken to confirm this findings and to determine the influence of some factors.},
  author       = {Voundi Nkana, JC and Demeyer, Alex and Verloo, Marc},
  issn         = {0002-1857},
  journal      = {AGROCHIMICA},
  keyword      = {PHOSPHATE SORPTION,WOOD ASH,AVAILABILITY,DESORPTION,GROWTH,FOREST,EXTRACTANTS,PARAMETERS,NUTRIENTS,POTASSIUM},
  language     = {eng},
  number       = {6},
  pages        = {291--303},
  title        = {Phosphorus fertilization in a tropical acid soil under simulated slash and burn conditions: effects on uptake and adsorption of phosphorus},
  volume       = {46},
  year         = {2002},
}

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