The ability of multipurpose hedgerow tree species to out-compete undesired regrowth during fallow phases was examined. Biomass and spatial distribution of grass and broad leaf volunteers was measured after two years of fallow, in two alley cropping systems planted at six m interrow distance, at the Humid Forest Ecoregional Centre Research Station, Mbalmayo, southern Cameroon. The two experiments had been continuously cropped for five and six years previously. In the experiment cropped for six years, the presence of Senna spectabilis [(DC.) Irwin and Barnaby] hedgerows reduced the biomass of the volunteer regrowth from 9.2 to 4.3 Mg ha−1. Tillage during the previous cropping phase increased the broad leaf biomass from 3.0 to 4.4 Mg ha−1, reduced the biomass of grasses from 3.4 to 2.7 Mg ha−1 but had no effect on the total volunteer biomass. Volunteer biomass was significantly lower within 1.5 m of the S. spectabilis hedgerows than at positions further away. In the experiment cropped for five years, S. spectabilis reduced the volunteer regrowth biomass significantly. Two other hedgerow species, Dactyladenia barteri [(Hook f ex Oliv.) Engl.] and Flemingia macrophylla [(Willd.) Merrill] had no effect on the total amount of volunteer regrowth but did reduce volunteer biomass within 0.5 m of the hedgerows. S. spectabilis caused a stronger reduction of volunteer biomass than D. barteri and F. macrophylla at almost all distances from the hedgerows. The competitiveness of D. barteri and F. macrophylla is insufficient and their growth habit is unsuitable to out-compete undesired species in this alley cropping system.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
Tax calculation will be finalised during checkout.
Akobundu I.O., Ekeleme F. and Agyakwa C.W. 1995. Effect of alley farming on weed infestation and floral composition. In: Kang B.T., Osiname O.A. and Larbi A. (eds), Alley Farming Research and Development. Alley Farming Network for Tropical Africa, Ibadan, Nigeria, pp. 137-143.
Hauser S. 1993. Root distribution of Dactyladenia (Acioa) barteri and Senna (Cassia) siamea in alley cropping on Ultisol. I. Implication for field experimentation. Agrofor Syst 24: 111-121.
Hauser S. and Gichuru M.P. 1994. Root distribution of Dactyladenia (Acioa) barteri and Senna (Cassia) siamea in alley cropping on Ultisol. II. Impact on water regime and consequences for experimental design. Agrofor Syst 26: 9-21.
Hauser S., Ndi J.N. and Hulugalle N.R. 2000a. Performance of maize/cassava intercrop in tilled and no-till Senna spectabilis alley cropping on Ultisol in southern Cameroon. Agrofor Syst 49: 177-188.
Hauser S., Ndi J.N. and Hulugalle N.R. 2000b. Yields of maize/cassava intercrops grown with hedgerows of three multipurpose trees on an acid Ultisol of Cameroon. Agrofor Syst 49: 111-122.
Hulugalle N.R. 1992. Contributory factors to soil spatial variability in an ultisol I. burning vegetation residues in heaps during land clearing. Communications in Soil Science and Plant Analysis 23: 1859-1869.
Hulugalle N.R. and Ndi N.J. 1993. Effects of no-tillage and alley cropping on soil properties and crop yields in a Typic Kandiudult of southern Cameroon. Agrofor Syst 22: 207-220.
Hulugalle N.R. and Ndi N.J. 1994. Changes of soil properties of a newly-cleared Ultisol due to establishment of hedgerow species in alley cropping systems. Journal of Agricultural Science, Cambridge 122: 435-443.
IITA 1996. Annual report for 1995. International Institute of Tropical Agriculture, Ibadan, Nigeria, 55 pp.
Ng K.F., Stür W.W. and Shelton H.M. 1997. New forage species for integration of sheep in rubber plantations. J. Agricultural Sci. Camb. 128: 347-355.
Ngongang Nono J.-C. 1996. Influence des techniques culturales sur la dynamique des adventices: cas du travail du sol et des jacheres ameliorees sur la densite, la composition et la distribution des graines d'adventices au niveau du sol. Unpublished Diploma, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Cameroon.
Rogers S. 1995. The potential of alley cropping for sustainable root crop production in the South Pacific. In: Kang B.T., Osiname O.A. and Larbi A. (eds), Alley Farming Research and Development. Alley Farming Network for Tropical Africa, Ibadan, Nigeria, pp. 372-378.
Rouw de A. 1995. The fallow period as a weed-break in shifting cultivation (tropical wet forest). Agriculture, Ecosystems and Environment 54: 34-43.
Ruhgiwa 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 an acid Ultisol. Agrofor Syst 19: 67-78.
Sahid I.B., Ibrahim R.B. and Kadri S. 1996. Effects of watering frequency, shade and glyphosate application on Paspalum conjugatum Berg (sour grass). Crop Protection 15: 15-19.
Saxena K.G. and Ramakrishnan P.S. 1984. Growth and pattern of resource allocation in Eupatorium odoratum L. in the secondary successional environments following slash and burn agriculture (jhum). Weed Research 24: 127-134.
Shetty S.V.R., Sivakumar M.V.K. and Ram S.A 1982. Effect of shading on the growth of some common weeds of the semi-arid tropics. Agronomy Journal 74: 1023-1029.
Slaats J.J.P. 1995. Chromolaena odorata in food cropping systems: an agronomic assessment in south-west Ivory Coast. Landbouwuniversiteit Wageningen. Tropical Resource Management Paper 11. PhD Dissertation, Wageningen Agricultural University, The Netherlands.
Tonye J., Ibewiro B. and Duguma B. 1997. Residue management of a planted fallow on an acid soil in Cameroon: crop yields and soil organic matter fractions. Agrofor Syst 37: 199-207.
Van Reuler H. and Janssen B.H. 1993. Nutrient fluxes in the shifting cultivation system of south-west Cote d'Ivoire II. Short-term and long-term effects of burning on yield and nutrient uptake of food crops. Plant Soil 154: 179-188.
About this article
Cite this article
Hauser, S. Volunteer biomass production between multipurpose tree hedgerows after two years of fallow in southern Cameroon. Agroforestry Systems 55, 139–147 (2002). https://doi.org/10.1023/A:1020586711333
- Dactyladenia barteri
- Flemingia macrophylla
- Senna spectabilis