Abstract
We investigated the effect of competition from grass roots (as controlled by herbicide application) on the depth distribution of white roots in cherry trees, grown with varying rates and frequency of application of N in an agroforestry system. Statistical summaries of distribution, namely mean and skewness, produced a concise and interpretable analysis of the data.
There was a large increase in tree root numbers in the surface horizons after the herbicide had reduced grass root competition. Where the surrounding grass had not been reduced by herbicide, the average depth of tree roots increased with time, contrasting with a marked shift in the mode of distribution of root numbers to shallow depths when grass competition was removed. These findings are important in the understanding of plant root competition and for prescribing best practise for tree establishment in agroforestry systems.
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References
Atkinson D 1977 Some observations on the root growth of young apple trees and their uptake of nutrients when grown in herbicide strips in grassed orchards. Plant Soil 46, 459–471.
Atkinson D and G C White 1980 Some effects of orchard soil management on the mineral nutrition of apple trees. In The Mineral Nutrition of Fruit Trees. Eds. D Atkinson, JE Jackson, RO Sharples and WM Waller. pp 241–254. Butterworths, UK.
Bjorkman E and Lundeberg G 1971 Studies of root competition in a poor pine forest by supply of labelled nitrogen and phosphorus. Stud. For. Succ. 91, 16.
Bould C and Jarrett R M 1962 The effect of cover crops and NPK fertilizers on growth, crop yield and leaf nutrient status of young dessert apple trees. J. Hortic. Sci. 37, 58–82.
Buckland S T, Campbell C D, Mackie-Dawson L A, Horgan G W and Duff E I 1993 A method for counting roots observed in minirhizotrons and their theoretical conversion to root length density. Plant Soil 153, 1–9.
Caldwell M M, Manwaring J H and Durham S L 1996 Species interactions at the level of fine roots in field - influence of soil nutrient heterogeneity and plant size. Oecologia 106, 440–447.
Campbell C D, Mackie-Dawson L A, Reid E J, Pratt S M, Duff E I and Buckland S T 1994a Manual recording of minirhizotron data and its application to study the effect of herbicide and nitrogen fertilizer on tree and pasture growth in a silvopastoral system Agrofor. Syst. 26, 75–87.
Campbell C D, Atkinson D, Jarvis P G and Newbould P 1994b Effects of nitrogen fertilizer on tree/pasture competition during the establishment phase of a silvopastoral system. Ann. Appl. Biol. 124, 83–96.
Connor D J, Sands R and Strandgard M 1989 Competition for water, light and nutrients in agroforestry associations of Pinus radiata and pasture. In Meteorology and Agroforestry. Eds. WS Reifsnyder and TO Darnhofer. pp 451–462. Proceedings of International Workshop, Nairobi, Kenya, February 0-13, 1987. ICRAF.
Davies R J 1987 Trees and weeds. Weed control for successful tree establishment. Forestry Commission Handbook 2. HMSO. London. pp 36.
Eason W R, Newman E I and Chuba G H 1991 Specificity of interplant cycling of nutrients: the role of mycorrhizas. Plant Soil 137, 267–274.
Eason WR, Tomlinson H F and Hainsworth C 1992 Effect of ground vegetation on root distribution of ash trees. Asp. Appl. Biol. 29, 225–231.
Eastham J and Rose C W 1990 Tree/pasture interactions at a range of tree densities in an agroforestry experiment.1.Rooting patterns. Aust. J. Agric. Res. 41, 683–695.
Goode J E and Hyrycz K J 1976 The effect of nitrogen on young, newly-planted apple rootstocks in the presence and absence of grass competition. J. Hort. Sci. 51, 321–327.
Helliwell D R 1989 Tree roots and the stability of trees. Arboricul. J. 13, 243–248.
ICRAF 1993 International Centre for Research in Agroforestry: Annual Report 1993. Nairobi, Kenya. 208 pp.
Khatamian H, Pair J C and Carrow R 1984 Effects of turf competition and fertilizer application on trunk diameter of nutrient comosition of Honeylocust. J. Arboricul. 10, 156–159.
Ludovici K H and Morris L A 1997 Competition-induced reductions in soil water availability reduced pine root extension rates. Soil. Sci. Soc. Am. J. 61, 1196–1202.
Mackie-Dawson L A and Atkinson D 1991 Methodology for the study of roots in field experiments and the interpretation of results. In Plant Root Growth, An Ecological Perspective. Ed. D Atkinson. pp 25-47. Blackwell, Oxford.
Mackie-Dawson L A, Pratt S M, Buckland S T and Duff E I 1995 The effect of nitrogen on fine root persistence in cherry (Prunus avium). Plant Soil 173, 349–353.
Mou P, Jones R H, Mitchell R J and Zutter B 1995 Spatial distribution of roots in sweetgum and loblolly pine monocultures and relations with above-ground biomass and soil nutrients. Funct. Ecol. 9, 689–699.
Nambiar E K S 1983 Root development and configuration in intensively managed radiata pine plantations. Plant Soil 71, 37–47.
Stokes A, Fitter A H and Coutts M P 1995 Response of young trees to wind and shading - effects on root architecture. J. Exp. Bot. 46, 1139–1146.
Stuckey I H 1961 Root growth of Taxus. Am. Nurseryman 114, 117–114.
Wairiu M, Mullins C E and Campbell C D 1994 Soil physical factors affecting the growth of sycamore (Acer pseudoplatanus L.) in a silvopastoral system on a stony upland soil in North-East Scotland. Agrofor. Sys. 24, 295–306.
Watson G W 1988 Organic mulch and grass competition influence tree root development. J. Arboricul. 14, 200–203.
Watson C A, Hooker J E, Atkinson D, Birley M A and Newbould P 1992 Effects of vegetation management on nitrate loss to ground water from agroforestry systems. Asp. Appl. Biol. 29, 407–412.
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Dawson, L., Duff, E., Campbell, C. et al. Depth distribution of cherry (Prunus avium L.) tree roots as influenced by grass root competition. Plant and Soil 231, 11–19 (2001). https://doi.org/10.1023/A:1010383506446
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DOI: https://doi.org/10.1023/A:1010383506446