at Google ScholarTitle 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
(1994)
.
- 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 > Central research institutes > 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 > Central research institutes |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science |
| Date Deposited: | 30 Oct 2015 07:19 |
| Last Modified: | 28 Oct 2024 12:02 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/21034 |