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Site factors, foliar nutrient levels and growth of "Cordia alliodora" plantations in the humid lowlands of Northern Costa Rica

Title data

Bergmann, C. ; Stuhrmann, Matthias ; Zech, Wolfgang:
Site factors, foliar nutrient levels and growth of "Cordia alliodora" plantations in the humid lowlands of Northern Costa Rica.
In: Plant and Soil. Vol. 166 (October 1994) Issue 2 . - pp. 193-202.
ISSN 1573-5036
DOI: https://doi.org/10.1007/BF00008333

Abstract in another language

Within the perhumid, Atlantic lowlands of northern Costa Rica, Cordia alliodora plantations were studied in orderto explain the observed pattern of growth irregularities. The soils, that were partly used as pastures over longperiods, could be classified roughly into two units: (i) red, deeply weathered, slightly acidic soils from Mg-enrichedparent material and (ii) brown, strongly acidic soils with high saturation of exchangeable A1 (up to 80%).Leaf analysis revealed that Cordia is a highly demanding species in respect to macronutrients. Poorly growingtrees in slope position suffered from an insufficient supply of N and P. K/Mg ratios of chlorotic leaves are verylow. Soil analysis showed that nutrient deficiencies were related to (i) insufficient soil nutrient reserves of the poor,tropical soils or (ii) to an inhibition of nutrient uptake by soil physical or chemical factors.All sites are characterized by very low K reserves and losses of nutrients that are organically bound (N, P) causedby erosion. In the Mg-rich red soils, low amounts of K lead to K/Mg imbalances. Soil compaction caused bycattle grazing occurs on both soil units. It negatively influences the root development of Cordia, and hence nutrientuptake. In the brown soils, high amounts of exchangeable A1 hinder a sufficient supply of nutrients (e.g. P) to theassimilation organs.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER6852
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 30 Oct 2015 07:19
Last Modified: 30 Oct 2015 07:19
URI: https://eref.uni-bayreuth.de/id/eprint/21034