Abstract
Low nitrogen (N) availability often results in reduced productivity of Eucalyptus plantations. We studied the response of four eucalyptus plantations (two plantations of E. tereticornis on the coastal lowlands, and two plantations of E. grandis in the upland region of the Western Ghats, Kerala, India) to N addition and related this response to seasonal N mineralization as well as other indices of N availability, in order to examine the utility of soil based indicators of N mineralization for predicting the response of eucalyptus growth to added N fertilizer. Several biochemical indicators were examined for their capacity to predict response to N fertilizer, including total soil N, soil C:N ratio, and N released during anaerobic and aerobic incubation. Results show that nitrogen fertilizer addition increased productivity across the 4 sites from 7% to 70%, N released during an aerobic incubation had the highest correlation with fertilizer response across the 4 sites (R 2=0.92, p<0.01), and that Modelled seasonal soil N mineralisation was a poorer predictor of fertilizer response than N released during an aerobic incubation. Whilst some of these indicators are promising, they need wider validation and testing before they could be routinely applied.
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References
Curtin D, McCallum FM. 2004. Biological and chemical assays to estimate nitrogen supplying power of soils with contrasting management histories. Aust J Soil Res, 42: 737–746.
FAO. 2001. Global Forest Resources Assessment 2000. FAO Forestry Paper 140. FAO, Rome: Published by Food and Agriculture Organization of the United Nations.
Gonçalves JLM, Carlyle JC. 1994. Modeling the influence of moisture and temperature on net nitrogen mineralization in a forested sandy soil. Soil Biol Biochem, 26: 1557–1564.
Keeney DR and Bremner JM. 1966. A chemical index for soil nitrogen availability. Nature, 211: 892–893.
Maithani K, Arunachalam A, Tripathi RS, Pandey HN. 1998. Nitrogen Mineralization as Influenced by Climate, Soil and Vegetation in a Subtropical Humid Forest in Northeast India. For Ecol Manage, 109: 91–101.
O’Connell AM, Rance SJ. 1999. Predicting nitrogen supply in plantation eucalypt forests. Soil Biol Biochem, 31: 1943–1951.
O’Connell AM, Grove TS, Mendham DS, Corbeels M, McMurtrie RF, Shammas K, Rance SJ. 2004. Impacts of inter-rotation site management on nutrient stores and fluxes and growth of eucalypt plantations in southwestern Australia. In: Namibar E.K.S., Ranger J, Tiarks A. (eds.) Site Management and Productivity in Tropical Plantation Forests. Proceedings of Workshops in Congo July 2001 and China February 2003. Indonesia: Published by CIFOR, Bogor, pp. 77–91.
Rayment GE, Higginson FR. 1992. Australian Laboratory Handbook of Soil and Water Chemical Methods. Australia: Published by Inkata Press and Oxford, Melbourne, Australia, pp53–57.
Sankaran KV, Mendham DS, Chacko KC, Pandalai RC, Grove TS, O’Connell AM. 2006. Increasing and sustaining productivity of tropical eucalypt plantations over multiple rotations. J Sust For, 24: 109–121.
Sankaran KV, Grove TS, Kumaraswamy S, Manju VS, Mendham DS, O’Connell AM. 2005. Export of biomass and nutrients following harvest of eucalypt plantations in Kerala, India. J Sust For, 20: 15–36.
Scott DA, Norris AM, Burger JA. 2005. Rapid indices of potential nitrogen mineralization for intensively managed hardwood plantations. Comm Soil Sci Plant Anal, 36: 1421–1434.
Smith CK, Gholz HL, Oliveira FAD. 1998. Soil nitrogen dynamics and plant-induced soil changes under plantations and primary forest in lowland Amazonia, Brazil. Plant Soil, 200: 193–204.
Stockdale EA. Rees RM. 1994. Relationships between biomass nitrogen and nitrogen extracted by other nitrogen availability methods. Soil Biol Biochem, 26: 1213–1220.
van Veen JA, Ladd JN. Frissel MJ. 1984. Modelling C and N turnover through the microbial biomass in soil. Plant Soil, 76: 257–274.
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Foundation project: This work was supported by the Australian Centre for International Agricultural Research.
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Mendham, D., Kumaraswamy, S., Sankaran, K. et al. An assessment of response of soil-based indicators to nitrogen fertilizer across four tropical eucalyptus plantations. Journal of Forestry Research 20, 237–242 (2009). https://doi.org/10.1007/s11676-009-0043-x
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DOI: https://doi.org/10.1007/s11676-009-0043-x