Abstract
Pot and field experiments were conducted in the greenhouse and at three field sites (Marondera, Domboshawa and Makoholi) in Zimbabwe to examine the effects of soils and fertilizers on nutrient uptake and growth of 6 exotic tree species (Eucalyptus camaldulensis, E. grandis, E. tereticornis, Leucaena leucocephala, Casuarina cunninghamiana, and Acacia holosericea). Plant growth, N and P contents of all species were increased by the application of N, P, K and micronutrient fertilizers. The effect of individual nutrients (N, P, K and micronutrients) and their combination on Eucalyptus species was further investigated in a pot experiment using soil from Domboshawa. Eucalyptus species responded only to N application and no significant interactions were found between N and the other elements. Nutrient uptake results showed that E. camaldulensis and E. tereticornis removed more cations than the N-fixing trees but only in the fertilized treatments. L. leucocephala and C. cunninghamiana were higher in P, but no clear trends were observed for N. Plant growth and nutrient uptake by E. camaldulensis. C. cunninghamiana and A. holosericea were assessed in the field at the three sites. Plant species grown in the Marondera site had greater height and diameter at breast height (DBH) than those in the two other sites. These results followed trends in soil nutrient contents. The analysis of foliage revealed differences in the nutrient concentration of leaves from different trees, but no effect of site was found. The interrelationships between plant characteristics, soil and foliage nutrients were examined. In a pot experiment, mineral N was the only variable correlated with growth response and nutrient uptake, while in the field the only significant correlation was obtained with soil pH.
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References
Allen S A 1974 Chemical Analysis of Ecological Materials. Blackwell Scientific Publications. Oxford, UK.
Cromer R N 1972 A review of the role of nutrients in the natural distribution, growth and establishment of Eucalyptus. Paper presented at the 44th Annual New Zealand Agronomy Association Science (ANZAAS) Congress, Sydney.
Grant P M 1981 The fertilization of sandy soils in peasant agriculture. Zimbabwe Agric. J. 78, 169–175.
Gwaze D 1985 (ACIAR) trials. ACIAR Annual Report, Australia.
Kang B T, Sipkens L, Wilson G F and Nangju D 1981 Leucaena leucocephala (Lam.) de Wit prunings as nitrogen source for maize (Zea mays L.). Fert. Res. 2, 279–287.
Kaul O N, Srivastava P B L and Tandon V N 1970 Nutritional studies on Eucalyptus: Diagnosis of mineral deficiencies in Eucalyptus globulus seedlings. Ind. For. 96, 787–790.
Lacey C J, Leaf A L and Talli A R 1966 Growth and nutrient uptake by flooded gum seedlings subjected to various phosphate supplies. Aust. For. 30, 212–222.
Lambert M J and Turner J 1983 Soil nutrient vegetation relationships in the Eden area, N.S.W. 111. Foliage nutrient relationship with particular reference to Eucalyptus subgenera. Aust. For. 46, 200–209.
Poore D and Fries C 1985 The ecological effects of Eucalyptus. FAO Forestry Paper 59. FAO, Rome.
Sanginga N, Mulongoy K and Ayanaba A 1985 Effect of inoculation and mineral nutrients on nodulation and growth of Leucaena leucocephala In Biological Nitrogen Fixation for Africa. Eds. HSsali and S OKeya. pp 419–427. The Nairobi Rhizobium Microbiological Resource Centre (MIRCEN), Kenya.
Schönau A P G 1981 The effects of fertilizing on the foliar nutrient concentrations in Eucalyptus grandis. Fert. Res 2, 73–87.
Schönau A P G 1983 Fertilization in South African forestry. South African For. J. 125, 1–19.
Vincent J M 1970 A Manual for Practical Study of Rood Nodule Bacteria. Blackwell Scientific Publications, Oxford, UK.
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Sanginga, N., Gwaze, D. & Swift, M.J. Nutrient requirements of exotic tree species in Zimbabwe. Plant Soil 132, 197–205 (1991). https://doi.org/10.1007/BF00010400
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DOI: https://doi.org/10.1007/BF00010400