References
- Adedire , M. O. , Ladipo , D. O. and Bada , S. O. 1992 . Early growth variations in Triplochiton scleroxylon K. Schum, Obeche . Nigerian J. Forestry , 23 : 50 – 55 .
- Black , J. N. 1957 . The early vegetative growth of three strains of subteranean clover (Trifolium subterraneum L.) in relation to size of seed . Austr. J. Agric. Res. , 8 : 1 – 14 .
- Challinor , D. 1968 . Alterations of surface soil characteristics by four tree species . Ecology , 49 : 268 – 290 .
- Duguma , B. , Kang , B. T. and Okali , D. U. U. 1988 . Effect of liming and phosphorus application on performance of Leucaena leucocephala in acid soils . Plant and Soil , 110 : 57 – 61 .
- Halenda , C. J. and Ting , S. P. 1993 . Performance of three legumes tree species on degraded acidic soils . Nitrogen Tree Res. Reports , 11 : 29 – 31 .
- Juo , A. S. R. 1981 . Selected Methods for Soil and Plant Analysis , Ibadan , , Nigeria : Manual Series International Institute of Tropical Agriculture .
- Kang , B. T. , Akinnifesi , F. K. and Ladipo , D. O. 1994 . Performance of selected woody agroforestry species grown on an Alfisol and an Ultisol in the humid lowland of West Africa, and their effects on soil properties . J. Trop. For. Sci , (In press)
- Kang , B. T. and Ofeimu , O. 1993 . “ Seed size and fertilizer effects on seedling growth of contrasting plant species ” . In Plant Nutrition from Genetic Engineering to Field Practice , Edited by: Barrow , N. J. 349 – 352 . Dordrecht , , Netherlands : Kluwer Academic Publisher .
- Kang , B. T. , Reynolds , L. and Atta‐krah , A.N. 1990 . Alley farming . Adv. Agron , 43 : 315 – 359 .
- Ladipo , D. O. and Leaky , R. R. B. 1986 . Progeny and clone site interaction in Triplochiton scleroxylon , K Schum. Research paper 61 Ibadan , , Nigeria : Forestry Research Institute of Nigeria .
- Little , T. M. and Hills , F. J. 1978 . Agricultural Experimentation: Design and Analysis , New York , NY : John Wiley & Sons .
- Lundgren , B. 1977 . Soil conditions and nutrient cycling under natural and plantation forests in Tanzanian Highlands , Forestry Ecological and Soils Report Vol. 31 , Uppsala , , Sweden : Department of Forest Soils, Swedish University of Agriculture Science .
- Macdicken , K. G. and Brewbaker , J. L. 1988 . Growth rates of five tropical leguminous fuelwood species . J. Trop. Forest Sci. , 1 : 85 – 93 .
- Netera , S. N. , Palmer , Brian and Bray , R. A. 1992 . Differential response to phosphorus and lime of two accessions of Calliandra calothyrsus on an acid soil . Nitrogen Fixing Tree Reports , 10 : 62 – 65 .
- Sanginga , N. , Bowen , G. D. and Danso , S. K. A. 1990 . Assessment of provenance variation in growth and P uptake of Faidherbia albida grown on low level of phosphate . Nitrogen Fixing Tree. Reports , 8 : 133 – 135 .
- Sanginga , N. , Bowen , G. D. and Danso , S. K. A. 1991 . Intra‐specific variation in growth and P accumulation of Leucaena leucocephala and Gliricidia sepium as influenced by soil phosphorus status . Plant and Soil , 133 : 201 – 208 .
- International Centre for Research in Agroforestry (ICRAF). Corresponding address: c/o L. W. Lambourn, 26 Dingwall Road, Croydon, CR9 3EE, U.K.