Amato M and Pardo A 1994 Root length and biomass losses during sample preparation with different mesh sizes. Plant Soil 161, 299-303.CrossRef
Atkinson D 1983 The growth, activity and distribution of the fruit tree system. Plant Soil 71, 23-35.CrossRef
Böhm W 1979 Methods of Studying Root Systems. Springer-Verlag, Berlin. 188 p.
Bowen G D 1985 Roots as a component of tree productivity. In Attributes of Trees as Crop Plants. Eds. M G R Cannell and J E Jackson. pp. 303-315. Institute of Terrestrial Ecology, Huntingdon.
Caldwell M M and Fernandez O A 1975 Dynamics of Great Basin shrub root systems. In Environmental Physiology of Desert Organisms. Ed. N F Hadley. pp 38-51. Dowden Hutchinson and Ross Inc., Stroudsberg, Pennsylvania.
Cochran W G 1977 Sampling Techniques. Third edition. John Wiley and Sons, New York.
De Willigen P and Van Noordwijk M 1987 Roots for plant production and nutrient use efficiency. Ph.D. thesis, Wageningen Agricultural University, Wageningen.
Eissenstat D M 1992 Costs and benefits of constructing roots of small diameter. J. Plant Nutr. 15, 763-782.CrossRef
Fogel R 1983 Root turnover and productivity of coniferous forests. Plant Soil 71, 75-85.CrossRef
GENSTAT 1987 Genstat 5 Reference Manual. Genstat 5 committee of the statistics department Rothamsted Experimental Station. Clarendon Press, Oxford. 749 pp.
Gerwing J J 1995 Competitive effects of 3 tropical tree species on 2 species of Piper. Biotropica 27, 47-56.CrossRef
Haggar J P and Ewel J J 1995 Establishment, resource acquisition and early productivity as determined by biomass allocation patterns of three tropical tree species. Forest Sci. 41, 689-708.
Harris G A and Campbell G S 1989 Automated quantification of roots using a simple image analyzer. Agron. J. 81, 935-938.CrossRef
Hendricks J J, Nadelhoffer K J and Aber J D 1993 Assessing the role of fine roots in carbon and nutrient cycling. Tree 8, 174-178.
Kirchhof G and Pendar K 1993 Delta-T Scan User Manual. Delta-T Devices Ltd., Cambridge, UK. 244 p.
Kramer P J and Boyer J S 1995 Water Relations of Plants and Soils. Academic Press, San Diego. 495 pp.
Kumar K, Prihar S S and Gajri P R 1990 Evaluation of different sieve sizes for washing wheat (Triticum aestivum) roots. Indian J. Agric. Sci. 60, 765-766.
McClaugherty C A, Aber J D and Melillo J M 1982 The role of fine roots in the organic matter and nitrogen budgets of two forested ecosystems. Ecology 63, 1481-1490.CrossRef
Mengel D B and Barber S A 1974 Development and distribution of the corn root system under field conditions. Agron. J. 66, 341-344.CrossRef
Newman E J 1966 A method of estimating the total root length of root in a sample. J. Appl. Ecol. 3, 133-145.CrossRef
Pallant E, Holmgren R A, Schuler G E, McCracken K L and Durbal B 1993 Using a fine root extraction device to quantify small diameter corn roots (≥0.025 mm) in field soils. Plant Soil 153, 273-279.CrossRef
Pearson C J and Jacobs B C 1985 Root distribution in space and time in Trifolium subterranean
. Austr. J. Agric. Res. 36, 601-614.CrossRef
Persson H 1983 The distribution and productivity of fine roots in boreal forests. Plant Soil 71, 23-35.CrossRef
Persson H 1989 Methods of studying root dynamics in relation to nutrient cycling. In Nutrient Cycling in Terrestrial Systems. Eds. A F Harrison, P Ineson and O W Heal. pp 198-217. Elsevier Science Publishing Ltd., London.
Ruhigwa B A, Gichuru M P, Mambani B and Tariah N m 1992 Root distribution of Acioa barteri, Alchornea cordifolia, Cassia siamea
and Gmelina arborea
in and acid Ultisol. Agrofor. Syst. 19, 67-78.CrossRef
Ryser P and Lambers H 1995 Root and leaf attributes accounting for the performance of fast-and slow-growing grasses at different nutrient supply. Plant Soil 170, 251-265.CrossRef
Sanchez P A 1995 Science in Agroforestry. Agrofor. Syst. 30, 5-55.CrossRef
Schuurman J J and Goedewaagen M A J 1965 Methods for the Examination of Root Systems and Roots. Pudoc, Wageningen.
Scherr S J 1995 Meeting household needs: farmer tree growing strategies in western Kenya. In Farms, Trees and Farmers — Responses to Agricultural Intensification. Eds. J E M Arnold and P A Dewees. pp. 141-173. Earthscan Publications Ltd., London.
Schenk M K and Barber S A 1979 Phosphate uptake by corn as affected by soil characteristics and root morphology. Soil Sci. Soc. Am. J. 43, 880-883.CrossRef
Schroth G 1994 Above-and below-ground interactions in alley cropping in Gliricidia sepium as compared to conventional and mulched sole cropping in the West African rainforest zone. Ph.D. Dissertation. University of Bayreuth, Bayreuth, Germany.
Skene K R, Sprent J I and Ong C K 1996 Cluster roots of Grevillea robusta — foragers or scavengers? Agroforestry Today 8(2), 11-12.
Van Noordwijk M and Floris J 1979 Loss of dry weight during washing and storage of root samples. Plant Soil 53, 239-243.CrossRef
Van Noordwijk M, Lawson G, Soumare A, Groot J J R and Hariah K 1996 Root distribution of trees and crops: competition and/or complementarity. In Tree Crop Interactions — a Physiological Approach. Eds. P Huxley and C K Ong. pp. 319-364.
Vogt K A 1991 Carbon budgets of temperate forest ecosystems. Tree Physiol. 9, 69-86.PubMed