• Ahmad N. 1989. Acid sandy soils of the Tropics with particular reference to the Guyanas. Seminar proceedings: Farming systems for low-fertility acid sandy sails. 5–9 December 1988, pp. 1232. Georgetown, Guyana.
  • Barrow NJ. 1977. Phosphorus uptake and utilization by tree seedlings. Australian Journal of Botany 25: 571584.
  • Bazzaz FA, Picked STA. The physiological ecology of tropical succession: a comparative review. Annual Review of Ecology and Systematics 11: 287310.
  • Bradstreet RB. 1965. The Kjeldahl method for organic nitrogen. New York : Academic Press.
  • Chapin FS III, Vitousek PM, Van Kleve K. 1986. The nature of nutrient limitation in plant communities. American Naturalist 127: 4858.
  • Chapin FS HI, Schulze ED. Mooney HA. 1990. The ecology and economics of storage in plants. Annual Review of Ecology and Systematics 21: 423447.
  • de Vogel EF. 1979. Seedlings of dicotyledons Wageningen : Pudoc.
  • Houba VJG, van der Lee JJ, Novazamsky I, Wallinga I. 1989. Digestions and extractions. In: Soil and Plant Analysis, Part 7. Plant Analysis Procedures. Wageningen : Wageningen Agricultural University, 1235.
  • Lambers H, Poorter H. 1992. Inherent variation in growth rate between higher plants: a search for physiological causes and ecological consequences. Advances in Ecological Research 23: 188261.
  • Prance GT, Mori SA. 1979. Flora Neotropica Monograph no, 21: Lecythidaceae – part 1. New York : New York Botanical Garden.
  • Raaimakers D, Deo Ouden F, van der Marel M, Boot RGA. 1995. Nitrogen and phosphorus as possible limiting factors for tree growth on acid sandy soils in tropical rain forest in Guyana. In: Growth of Tropical Rain Purest Trees as Dependent on Phosphorus Supply. Ph.D. thesis, Utrecht University. Tropenbos Series no III. Wageningen: Tropenbos Foundation.
  • Reich PB, Walters MB, Ellsworth DS, Uhl C. 1994. Photo-synthesis-nitrogen relations in Amazonian tree species I. Patterns among species and communities. Oecologia 97: 6272.
  • SAS. 1988. User's Guide: Statistics, ed. 6.03 SAS Institute Inc., Cary , North Carolina .
  • Swaine MD, Whitmore TC. 1988. On the definition of ecological species groups in tropical rain forests. Vegetatio 75: 8186.
  • Tennant D. 1975. A test of a modified lint intersect method of estimating root length. Journal of Ecology 63: 9951001.
  • Van Kekem AJ, Khan Z, Pulles JHM. (In press). Soils of the rain forest in central Guyana, Tropenbos Guyana Series 1, Utrecht University. The Netherlands .
  • Vitousek PM, Denslow JS. 1986. Nitrogen and phosphorus availability in treefall gaps of a lowland tropical rainforest. Journal of Ecology 74: 11671178.