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PARTICIPATORY RESEARCH TO CLOSE THE SOYBEAN YIELD GAP ON SMALLHOLDER FARMS IN MALAWI

Published online by Cambridge University Press:  30 June 2016

D. VAN VUGT ,
A. C. FRANKE  and
K. E. GILLER
D. VAN VUGT*
Affiliation:
Plant Production Systems, Wageningen University, PO Box 430, 6700, AT Wageningen, the Netherlands International Institute of Tropical Agriculture, Chitedze Research Station, P.O. Box 30258, Lilongwe 3, Malawi
A. C. FRANKE
Affiliation:
Plant Production Systems, Wageningen University, PO Box 430, 6700, AT Wageningen, the Netherlands Soil, Crop and Climate Sciences, University of the Free State, PO Box 339, Bloemfontein, 9300, South Africa
K. E. GILLER
Affiliation:
Plant Production Systems, Wageningen University, PO Box 430, 6700, AT Wageningen, the Netherlands
*
Corresponding author. Email: d.vanvugt@cgiar.org;
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Summary

Soybean yields on smallholder farmers’ fields in Malawi are constrained by poor soil fertility, limited application of external inputs and poor crop husbandry. We tested crop management practices through on-farm experimentation and participatory technology evaluation. Two agronomic soybean trials were established in 2009 and 2010 in three contrasting agro-ecologies resulting in 72 replications per trial. Treatments in the first trial included several combinations of inoculation with Bradyrhizobium japonicum, inorganic fertiliser application and compost manure. In the second trial, farmers tested an improved variety, optimal weeding regime, increased plant population and chemical pest and disease control. A combination of inoculation, inorganic fertiliser (10 N, 8 P, 20 K in kg ha−1), and 6 t ha−1 compost manure increased yields from 0.86 t ha−1 under farmers’ practice to 1.56 t ha−1 and resulted in average profits of US$222 ha−1. Increased plant populations and biocide spraying also resulted in substantial yield increases. Inoculation and increased plant population resulted in an average value to cost ratio (VCR) > 2. Low investment costs make inoculants, compost manure and increased plant populations interesting options, whereas adoption of inorganic fertiliser application in soybean may be limited due to high costs and low VCR. The farmers ranked eight technologies in descending order of preference as: (i) early planting, (ii) plant population, (iii) variety choice, (iv) compost manure, (v) weeding, (vi) inoculant, (vii) fertiliser and (viii) spraying. Our participatory research approach demonstrated that there is a wide range of technologies with different levels of human and financial investment costs that smallholder farmers can adopt to enhance their soybean yields and profits.

Type
Research Article
Information
Experimental Agriculture , Volume 53 , Issue 3 , July 2017 , pp. 396 - 415
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Copyright
Copyright © Cambridge University Press 2016 

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Footnotes

Present address: International Potato Center (CIP), Area 11 Plot No. 36 Chimutu Road, P.O. Box 31600 Lilongwe 3, Malawi.

References

REFERENCES

Alessi, J. and Power, J. F. (1982). Effects of plant and row spacing on dryland soybean yield and water-use efficiency. Agronomy Journal 74:851–854.Google Scholar
Bezner-Kerr, R., Snapp, S., Chirwa, M., Shumba, L. and Msachi, R. (2007). Participatory research on legume diversification with malawian smallholder farmers for improved human nutrition and soil fertility. Experimental Agriculture 43:437–453.Google Scholar
Bloem, J. F., Trytsman, G. and Smith, H. J. (2009). Biological nitrogen fixation in resource-poor agriculture in South Africa. Symbiosis 48:18–24.Google Scholar
Carr, S. (1997). A green revolution frustrated: Lessons from the Malawi experience. African Crop Science Journal 5:93–98.Google Scholar
Chamango, A. M. Z. (2002). Improving grain yield of smallholder cropping systems: A farmer participatory research (FPR) approach with legumes for soil fertility improvement in central Malawi. In Proceedings of the Seventh Eastern and Southern Africa Regional Maize Conference, 5–11 February 2002, 413–417. Nairobi, Kenya: CIMMYT and KARI.Google Scholar
Chirwa, E. W. (2005). Adoption of fertiliser and hybrid seeds by smallholder maize farmers in Southern Malawi. Development Southern Africa 22:1–12.Google Scholar
Davis, P. (1979). A review of soybean research in Malawi. In GLR/RHIZ/SOY/4, Lilongwe: Microbiology Section. Chitedze Agricultural Research Station.Google Scholar
Dimes, J., Muza, L., Malunga, G. and Snapp, S. (2002). Trade-offs between investments in nitrogen and weeding: On-farm experimentation and simulation analysis in Malawi and Zimbabwe. In Proceedings of the Seventh Eastern and Southern Africa Regional Maize Conference, 5–11 February 2002, 452–456. Nairobi, Kenya: CIMMYT and KARI.Google Scholar
Dogan, E., Kirnak, H. and Copur, O. (2007). Deficit irrigations during soybean reproductive stages and CROPGRO-soybean simulations under semi-arid climatic conditions. Field Crops Research 103:154–159.CrossRefGoogle Scholar
Doss, B. D., Pearson, R. W. and Rogers, H. T. (1974). Effect of soil water stress at various growth stages on soybean yield. Agronomy Journal 66:297–299.CrossRefGoogle Scholar
FAO (2016). www.faostat.fao.org. Cited 26 March 2016.Google Scholar
Fermont, A. M., van Asten, P. J. A., Tittonell, P., Van Wijk, M. T. and Giller, K. E. (2009). Closing the cassava yield gap: An analysis from smallholder farms in East Africa. Field Crops Research 112:24–36.CrossRefGoogle Scholar
Giller, K. E. (2001). Nitrogen Fixation in Tropical Cropping Systems, 2nd edn. Wallingford, UK: CAB International.Google Scholar
Giller, K. E., Murwira, M. S., Dhliwayo, D. K. C., Mafongoya, P. L. and Mpepereki, S. (2011). Soyabeans and sustainable agriculture in Southern Africa. International Journal of Sustainable Agriculture 9 (1):50–58.Google Scholar
Giller, K. E., Witter, E., Corbeels, M. and Tittonell, P. (2009). Conservation agriculture and smallholder farming in Africa: The heretics’ view. Field Crops Research 114:23–34.CrossRefGoogle Scholar
Haile, F. J., Higley, L. G. and Specht, J. E. (1998). Integrated pest management. Soybean cultivars and insect defoliation: Yield loss and economic injury levels. Agronomy Journal 90:344–352.Google Scholar
Hati, K. M., Mandal, K. G., Misra, A. K., Ghosh, P. K. and Bandyopadhyay, , , K. K. (2006). Effect of inorganic fertilizer and farmyard manure on soil physical properties, root distribution, and water-use efficiency of soybean in Vertisols of central India. Bioresource Technology 97:2182–2188.CrossRefGoogle ScholarPubMed
Hijmans, R. J., Cameron, S. E., Parra, J. L., Jones, P. G. and Jarvis, A. (2005). Very high resolution interpolated climate surfaces for global land areas. International Journal of Climatology 25:1965–1978.Google Scholar
Jarvie, J. A. and Shanahan, P. E. (2009). Assessing tolerance to soybean rust in selected genotypes. Field Crops Research 114:419–425.CrossRefGoogle Scholar
Kabambe, V., Katunga, L., Kapewa, T. and Ngwira, A. R. (2008). Screening legumes for integrated management of witchweeds (Alectra vogelii and Striga asiatica) in Malawi. African Journal of Agricultural Research 3 (10):708–715.Google Scholar
Kamanga, B. C. G., Waddington, S. R., Whitbread, A. M., Almekinders, C. J. M. and Giller, K. E. (2013). Improving the efficiency of use of small amounts of nitrogen and phosphorus fertiliser on smallholder maize in central Malawi. Experimental Agriculture 1–22.Google Scholar
Kamanga, B. C. G., Whitbread, A., Wall, P., Waddington, S. R., Almekinders, C. and Giller, K. E. (2010). Farmer evaluation of phosphorus fertilizer application to annual legumes in Chisepo, Central Malawi. African Journal of Agricultural Research 5 (8):668–680.Google Scholar
Kawuki, R. S., Adipala, E., Lamo, J. and Tukamuhabwa, P. (2003). Responding to the soybean rust epidemic in Sub-Saharan Africa: A review. African Crop Science Journal 11 (4):301–318.Google Scholar
Kelly, V. A. (2006). Factors affecting demand for fertilizer in sub-Saharan Africa. Agriculture and Rural Development Discussion Paper 23. 89 (Ed W. Bank). Washington DC.Google Scholar
Levy, C. (2005). Epidemiology and chemical control of soybean rust in Southern Africa. Plant Disease 89:669–674.Google Scholar
Mhango, W. G., Snapp, S. and Phiri, G. Y. K. (2013). Opportunities and constraints to legume diversification for sustainable maize production on smallholder farms in Malawi. Renewable Agriculture and Food Systems 28 (3):234–244.CrossRefGoogle Scholar
Mpepereki, S., Javaheri, F., Davis, P. and Giller, K. E. (2000). Soyabeans and sustainable agriculture. Promiscuous soyabeans in southern Africa. Field Crops Research 65:137–149.Google Scholar
Mugwe, J., Mugendi, D., Kungu, J. and Muna, M. (2009). Maize yields response to application of organic and inorganic input under on-station and on-farm experiments in central Kenya. Experimental Agriculture 45:47–59.Google Scholar
Ndakidemi, P. A., Dakora, F. D., Nkonya, E. M., Ringo, D. and Mansoor, H. (2006). Yield and economic benefits of common bean (Phaseolus vulgaris) and soybean (Glycine max) inoculation in northern Tanzania. Australian Journal of Experimental Agriculture 46:571–577.Google Scholar
Odeleye, F. O., Odeleye, O. M. O. and Dada, O. A. (2007). The performance of soybean (Glycine max (L.) Merrill) under varying weeding regimes in south western Nigeria. Not. Bot. Hort. Agroot. Cluj 35 (1):27–36.Google Scholar
Ojiem, J. O., Ridder, N. d., Vanlauwe, B. and Giller, K. E. (2006). Socio-ecological niche: A conceptual framework for integration of legumes in smallholder farming systems. International Journal of Agricultural Sustainability 4:79–93.Google Scholar
Orr, A., Mwale, B. and Saiti, D. (2002). Modelling agricultural ‘performance’: Smallholder weed management in Southern Malawi. International Journal of Pest Management 48 (4):265–278.Google Scholar
Parker, M. B., Marchant, W. H. and Mullinix, B. J. (1981). Date of planting and row spacing effects on four soybean cultivars. Agronomy Journal 73:759–762.CrossRefGoogle Scholar
Peoples, M. B., Brockwell, J., Herridge, D., Rochester, I. J., Alves, B. J. R., Urquiaga, S., Boddey, R. M., Dakora, F. D., Bhattarai, S., Maskey, S. L., Sampet, C., Rerkasem, B., Khan, D. F., Hauggaard-Nielsen, H. and Jensen, E. S. (2009). The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems. Review article. Symbiosis 48:1–17.CrossRefGoogle Scholar
Pule-Meulenberg, F., Gyogluu, C., Naab, J. and Dakora, F. D. (2011). Symbiotic N nutrition, bradyrhizobial biodiversity and photosynthetic functioning of six inoculated promiscuous-nodulating soybean genotypes. Journal of Plant Physiology 168:540–548.Google Scholar
Ray, D. K., Mueller, N. D., West, P. C. and Foley, J. A. (2013). Yield trends are insufficient to double global crop production by 2050. PLoS ONE 8 (6):e66428.Google Scholar
Sanginga, N. (2003). Role of biological nitrogen fixation in legume based cropping systems; a case study of West Africa farming systems. Plant and Soil 252:25–39.Google Scholar
Sastawa, B. M., Lawan, M. and Maina, Y. T. (2004). Management of insect pests of soybean: Effects of sowing date and intercropping on damage and grain yield in the Nigerian Sudan savanna. Crop Protection 23:155–161.CrossRefGoogle Scholar
Sisworo, W. H., Mitrosuhardjo, M. M., Rasjid, H. and Myers, R. J. K. (1990). The relative roles of N fixation, fertilizer, crop residues and soil in supplying N in multiple cropping systems in a humid, tropical upland cropping system. Plant and Soil 121:73–82.Google Scholar
Snapp, S. S., Rohrbach, D. D., Simtowe, F. and Freeman, H. A. (2002). Sustainable soil management options for Malawi: Can smallholder farmers grow more legumes? Agriculture, Ecosystems and Environment 91:159–174.CrossRefGoogle Scholar
Snapp, S. S. and Silim, S. N. (2002). Farmer preferences and legume intensification for low nutrient environments. Plant and Soil 245:181–192.Google Scholar
Steiner, C., Teixeira, W. G., Lehmann, J., Nehls, T., de Macêdo, J. L. V., Blum, W. E. H. and Zech, W. (2007). Long term effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered central amazonian upland soil. Plant and Soil 291 (1):275–290.Google Scholar
Summerfield, R. J., Ellis, R. H. and Craufurd, P. Q. (1996). Phenological adaptation to cropping environment. From evaluation descriptors of times to flowering to the genetic characterisation of flowering responses to photoperiod and temperature. Euphytica 92:281–286.Google Scholar
Tadross, M., Suarez, P., Lotsch, A., Hachigonta, S., Mdoka, M., Unganai, L., Lucia, F., Kamdonyo, D. and Mchinda, M. (2007). Changes in growing-season rainfall characteristics and downscaled scenarios of change over southern Africa: Implications for growing maize. In IPCC TGICA Expert Meeting. Integrating Analysis of Regional Climate Change and Response Options, 20–22 June 2007, 213–224. Nadi, Fiji: Intergovernmental Panel on Climate Change.Google Scholar
Taylor, H. M. (1980). Soybean growth and yield as affected by row spacing and by seasonal water supply. Agronomy Journal 72:543–547.Google Scholar
Tefera, H., Kamara, A. Y., Asafo-Adjei, B. and Dashiell, K. E. (2009). Improvement in grain and fodder yields of early-maturing promiscuous soybean varieties in the guinea savanna of Nigeria. Crop Science 49:2037–2042.CrossRefGoogle Scholar
Tinsley, R. L. (2009). Value Chain Analysis for Soybeans in Malawi. CNFA – Farmer-to-Farmer Volunteer, 21 February to 18 March 2009.Google Scholar
Van den Brand, G. (2011). Towards increased adoption of grain legumes among Malawian farmers - Exploring opportunities and constraints through detailed farm characterization. In Plant Production Systems Group, Vol. Master Thesis Sustainable Development, 70. Wageningen: Utrecht University and Wageningen University.Google Scholar
Vandeplas, I., Vanlauwe, B., Driessens, L., Merckx, R. and Deckers, J. (2010). Reducing labour and input costs in soybean production by smallholder farmers in south-western Kenya. Field Crops Research 117:70–80.Google Scholar
Wendt, J. W. and Jones, R. B. (1997). Evaluation of the efficacy of Malawi Tundulu phosphate rock for maize production. Nutrient Cycling in Agroecosystems 48:161–170.Google Scholar
Zingore, S., Murwira, H. K., Delve, R. J. and Giller, K. E. (2008). Variable grain legume yields, responses to phosphorus and rotational effects on maize across soil fertility gradients on smallholder farms in Zimbabwe. Nutrient Cycling in Agroecosystems 80:1–18.Google Scholar
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