Abstract
This study examined the hypothesis that incorporation of Gliricidia sepium (Jacq.) Walp.) (gliricidia), a fast-growing, nitrogen-fixing tree, into agroforestry systems in southern Malawi may be used to increase the input of organic fertilizer and reduce the need for expensive inorganic fertilizers. The productivity of maize (Zea mays L.), pigeonpea (Cajanus cajan L.) and gliricidia grown as sole stands or in mixed cropping systems was examined at Makoka Research Station (latitude 15° 30′ S, longitude 35° 15′ E) and a nearby farm site at Nazombe between 1996 and 2000. Treatments included gliricidia intercropped with maize, with or without pigeonpea, and sole stands of gliricidia, maize and pigeonpea. Trees in the agroforestry systems were pruned before and during the cropping season to provide green leaf manure. Maize yields and biomass production by each component were determined and fractional light interception was measured during the reproductive stage of maize. Substantial quantities of green leaf manure (2.4 to 9.0 Mg ha−1 year−1) were produced from the second or third year after tree establishment. Green leaf manure and fuelwood production were greatest when gliricidia was grown as unpruned sole woodlots (c. 8.0 and 22 Mg ha−1 year−1 respectively). Improvements in maize yield in the tree-based systems also became significant in the third year, when c. 3.0 Mg ha−1 of grain was obtained. Tree-based cropping systems were most productive and exhibited greater fractional light interception (c. 0.6 to 0.7) than cropping systems without trees (0.1 to 0.4). No beneficial influence of pigeonpea on maize performance was apparent either in the presence or absence of gliricidia at either site in most seasons. However, as unpruned gliricidia provided the greatest interception of incident solar radiation (>0.9), coppicing may be required to reduce shading when gliricidia is grown together with maize. As pigeonpea production was unaffected by the presence of gliricidia, agroforestry systems containing gliricidia might be used to replace traditional maize + pigeonpea systems in southern Malawi.
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References
Giller K.E., Cardish G., Ehaliotis C., Adams E., Sakala W.D. and Mafongoya P.L. 1997. Building soil nitrogen capital in Africa. In: Buresh R.J., Sanchez P.A. and Calhoun F. (eds.), Replenishing Soil Fertility in Africa. Soil Science Society of America, Madison, WI, USA, pp. 150–192, Special Publication Number 51.
Ikerra S.T., Maghembe J.A., Smithson P.C. and Buresh R.J. 1999. Soil nitrogen dynamics and relationships with maize yields in a gliricidia-maize intercrop in Malawi. Plant and Soil 211: 155–164.
Ikerra S.T., Maghembe J.A., Smithson P.C. and Buresh R.J. 2001. Dry-season sesbania fallows and their influence on nitrogen availability and maize yields in Malawi. Agroforestry Systems 52: 13–21.
Kumar Rao J.V.D., Dart P.J. and Sastry P.V.S.S. 1983. Residual effect of pigeonpea (Cajanus cajan) on yield and nitrogen response of maize. Experimental Agriculture 19: 131–141.
Kwesiga F. and Coe R. 1994. The effect of short rotation Sesbania sesban planted fallow on maize yield. Forest Ecology and Management 64: 199–208.
Kwesiga F.R., Franzel S., Place F., Phiri D., Simwanza C.P. 1999. Sesbania sesban improved fallows in eastern Zambia: Their inception, development and farmer enthusiasm. Agroforestry Systems 47: 49–66.
Loomis R.S. and Connor D.J. 1992. Crop Ecology: Productivity and Management in Agricultural Systems. Cambridge University Press, UK, 538 pp.
Lott J.E. 1998. Resource Capture and Use in Semi-arid Overstorey Agroforestry Systems. PhD Thesis, University of Nottingham, UK.
MacColl D. 1989. Studies on maize (Zea mays L.) at Bunda, Malawi: II. Yield in short rotations with legume. Experimental Agriculture 25: 367–374.
Maghembe J.A., Chirwa P.W., Kooi G. and Ikerra S. 1997. SADC- ICRAF Annual Report for 1997. Makoka Agricultural Research Station, Malawi.
Martin-Prével P., Gagnard J. and Gautier P. (eds.) 1987. Plant Analysis as a Guide to the Nutrient Requirements of Temperate and Tropical Crops. Lavosier Publishing Inc., New York, 722 pp.
Mugendi D.N., Nair P.K.R., Mugwe J.N., O'Neill M.K. and Woomer P.L. 1999. Alley cropping of maize with calliandra and leucaena in the subhumid highlands of Kenya. Part 1: Soil fertility changes and maize yield. Agroforestry Systems 46: 39–50.
Nair P.K.R. 1989. Agroforestry Systems, Practices and Technologies. In: Nair P.K.R. (ed), Agroforestry Systems in the Tropics. Kluwer Academic Publishers, Dordrecht, The Netherlands, pp. 67–73.
Okogun J.K., Sanginga N. and Mulongoy K. 2000. Nitrogen contribution of five leguminous trees and shrubs to alley cropped maize in Ibadan, Nigeria. Agroforestry Systems 50: 123–136.
Ong C.K. 1996. A framework for quantifying the various effects of tree-crop interactions. In: Ong CK and Huxley P (eds.), Tree-Crop Interactions: A Physiological Approach. CAB International, Wallingford, UK, pp. 1–23.
Ong C.K., Black C.R., Wallace J.S., Khan A.A.H., Lott J.E., Jackson N.A., Howard S.B. and Smith D.M. 2000. Productivity, microclimate and water use in Grevillea robusta-based agro-forestry systems on hill slopes in semi-arid Kenya. Agriculture Ecosystem and Environment 80: 121–141.
Palm C.A., Myers F.J.K. and Nandwa S.M. 1997. Combined use of organic and inorganic nutrient sources for soil fertility maintenance and replenishment. In: Buresh R.J., Sanchez P.A. and Calhoun F. (eds.), Replenishing Soil Fertility in Africa. Soil Science Society of America, Madison, WI, USA, pp. 193–217, Special Publication Number 51.
Ritchie J.M., Abeyasekera S. and Chanika C.S.M. 2000. Performance of ICRISAT pigeonpea varieties on smallholder farms in southern Malawi. International Chickpea and Pigeonpea Newsletter 7: 64–66.
Sakala W.D. 1998. Crop Management Interventions in Traditional Maize/pigeonpea Intercropping Systems in Malawi. PhD Thesis, University of London, UK.
Sanchez P.A., Shepherd K.D., Soule M.J., Place F.M., Buresh R.J., Izac A.N., Mokunye A.U., Kwesiga F.R., Ndiritu C.G. and Woomer P.L. 1997. An investment in natural resource capital. In: Buresh R.J., Sanchez P.A. and Calhoun F. (eds.), Soil Fertility Replenishment in Africa. Soil Science Society of America, Madison, WI, USA, pp. 1–46, Special Publication Number 51.
Sivakumar M.V.K. and Virmani S.M. 1984. Growth and resource use of maize, pigeonpea and maize/pigeonpea intercrops in an operational research watershed. Experimental Agriculture 16: 377–386.
Squire G.R. 1990. The Physiology of Tropical Crop Production. CAB International, Oxford, UK, 236 p.
Young A. 1997. Agroforestry for Soil Management (Second Edition). CAB International, Wallingford, UK, 320 p.
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Chirwa, P., Black2, C., Ong, C. et al. Tree and crop productivity in gliricidia/maize/pigeonpea cropping systems in southern Malawi. Agroforestry Systems 59, 265–277 (2003). https://doi.org/10.1023/B:AGFO.0000005227.69260.f9
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DOI: https://doi.org/10.1023/B:AGFO.0000005227.69260.f9