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Improved nutrition and resilience will make conservation agriculture more attractive for Zambian smallholder farmers

Published online by Cambridge University Press:  26 February 2021

Blessing Mhlanga Open the ORCID record for Blessing Mhlanga [Opens in a new window] ,
Mulundu Mwila Open the ORCID record for Mulundu Mwila [Opens in a new window]  and
Christian Thierfelder Open the ORCID record for Christian Thierfelder [Opens in a new window]
Blessing Mhlanga*
Affiliation:
Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Liberta 33, 56127 Pisa, Italy
Mulundu Mwila
Affiliation:
Zambia Agriculture Research Institute (ZARI), Msekera Research Station, P.O Box 510089, Chipata, Zambia
Christian Thierfelder
Affiliation:
International Maize and Wheat Improvement Centre (CIMMYT), Southern Africa, P.O. Box MP163, Harare, Zimbabwe
*
Author for correspondence: Blessing Mhlanga, E-mail: blessing.mhlangah@gmail.com
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Abstract

Food and nutrition insecurity in southern Africa call for improvements in traditional agriculture systems. Conservation Agriculture (CA) based on minimum soil disturbance, permanent soil cover and crop diversification has been implemented as a strategy to maintain yields while safeguarding the environment. However, less focus has been placed on potential synergistic benefits on nutrition security. Maize-based systems may increase household income through selling but may not lead to proportionate reduction in malnutrition. Crop diversification in CA systems can have a direct impact on the nutritional status of farm households due to improved dietary diversity. Here we assess how the integration of grain legumes, cowpeas and soybeans, in maize-based CA systems either as intercrops or rotational crops affects maize grain yield and stability, total energy yield, protein yield and surplus calories after satisfying the daily requirement per household. The experiments were carried out from 2012 to 2020 (nine consecutive cropping seasons) in six eastern Zambian on-farm communities using 966 observations. Results show that intercropping compromises maize yields with marginal yield penalties of −5% compared to no-till monocropping. However, intercropped yields were more stable across environments. Total system caloric energy and protein yield were highest in intercropping systems due to higher productivity per unit land area owing to the additive contribution of both maize and legumes. Total system caloric energy and protein yield reached yearly averages of 60 GJ ha−1 and 517 kg ha−1, respectively, for the intercropping system as compared to 48 GJ ha−1 and 263 kg ha−1 in monocropped maize systems. Tillage-based monocrop resulted in the least stable yields. Our results suggest that intercropping maize with grain legumes in CA systems is a promising option for smallholder farming households to improve dietary diversity, dietary quality and stability of yields thus contributing to sustainable agriculture intensification while maintaining food and nutrition security.

Keywords

crop diversificationdietary diversityfood securityno-tillagenutritionsustainable intensification
Type
Research Paper
Information
Renewable Agriculture and Food Systems , Volume 36 , Issue 5 , October 2021 , pp. 443 - 456
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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Footnotes

‡

When originally published this article contained an error in the author affiliations. This has now been updated and a correction notice can be found here: https://doi.org/10.1017/S1742170521000065.

References

Akombi, BJ, Agho, KE, Merom, D, Renzaho, AM and Hall, JJ (2017) Child malnutrition in sub- Saharan Africa: a meta-analysis of demographic and health surveys (2006–2016). PloS One 12, e0177338–e0177338.CrossRefGoogle Scholar
Bates, D, Maechler, M, Bolker, B and Walker, S (2015) Fitting linear mixed-effects models using lme4. Journal of Statistical Software 67, 1–48.CrossRefGoogle Scholar
Bonciarelli, U, Onofri, A, Benincasa, P, Farneselli, M, Guiducci, M, Pannacci, E, Tosti, G and Tei, F (2016) Long-term evaluation of productivity, stability and sustainability for cropping systems in Mediterranean rainfed conditions. European Journal of Agronomy 77, 146–155.CrossRefGoogle Scholar
Borcard, D, Gillet, F and Legendre, P (2018) Numerical Ecology with R. New York, USA: Springer International Publishing.CrossRefGoogle Scholar
Brooker, RW, Bennett, AE, Cong, W-F, Daniell, TJ, George, TS, Hallett, PD, Hawes, C, Iannetta, PPM, Jones, HG, Karley, AJ, Li, L, McKenzie, BM, Pakeman, RJ, Paterson, E, Schöb, C, Shen, J, Squire, G, Watson, CA, Zhang, C, Zhang, F, Zhang, J and White, PJ (2015) Improving intercropping: a synthesis of research in agronomy, plant physiology and ecology. New Phytologist 206, 107–117.CrossRefGoogle ScholarPubMed
Cassidy, ES, West, PC, Gerber, JS and Foley, JA (2013) Redefining agricultural yields: from tonnes to people nourished per hectare. Environmental Research Letters 8, 034015.CrossRefGoogle Scholar
Chakona, G and Shackleton, CM (2018) Household food insecurity along an agro-ecological gradient influences children's nutritional status in South Africa. Frontiers in Nutrition 4, 72–72.CrossRefGoogle ScholarPubMed
Cheesman, S, Thierfelder, C, Eash, NS, Kassie, GT and Frossard, E (2016) Soil carbon stocks in conservation agriculture systems of Southern Africa. Soil and Tillage Research 156, 99–109.CrossRefGoogle Scholar
Chege, CGK, Andersson, CIM and Qaim, M (2015) Impacts of supermarkets on farm household nutrition in Kenya. World Development 72, 394–407.CrossRefGoogle Scholar
Connolly-Boutin, L and Smit, B (2016) Climate change, food security, and livelihoods in sub-Saharan Africa. Regional Environmental Change 16, 385–399.CrossRefGoogle Scholar
Corbeels, M, Cardinael, R, Naudin, K, Guibert, H and Torquebiau, E (2019) The 4 per 1000 goal and soil carbon storage under agroforestry and conservation agriculture systems in sub-Saharan Africa. Soil and Tillage Research 188, 16–26.CrossRefGoogle Scholar
D'Odorico, P, Carr, JA, Laio, F, Ridolfi, L and Vandoni, S (2014) Feeding humanity through global food trade. Earths Future 2, 458–469.CrossRefGoogle Scholar
Dowswell, CR, Paliwal, RL and Cantrell, RP (1996) Maize in the Third World. Colorado, USA: Westview Press.Google Scholar
Dubis, B, Jankowski, KJ, Sokólski, MM, Załuski, D, Bórawski, P and Szempliński, W (2020) Biomass yield and energy balance of fodder galega in different production technologies: an 11-year field experiment in a large-area farm in Poland. Renewable Energy 154, 813–825.CrossRefGoogle Scholar
Flora, CB (2009) Transforming the rural nonfarm economy: opportunities and threats in a developing world, edited by Steven Haggblade, Peter B.R. Hazell, and Thomas Reardon. Rural Sociology 74, 459–461.CrossRefGoogle Scholar
Gauch, HG, Piepho, H-P and Annicchiarico, P (2008) Statistical analysis of yield trials by AMMI and GGE: further considerations. Crop Science 48, 866–889.CrossRefGoogle Scholar
Gebru, H (2015) A review on the comparative advantages of intercropping to mono-cropping system. Journal of Biology, Agriculture and Healthcare 5, 1–13.Google Scholar
Giller, K and Schilt-van Ettekoven, C (2015) N2Africa Putting nitrogen fixation to work for smallholder farmers in Africa. N2Africa.Google Scholar
Herforth, A and Harris, J (2014) Understanding and Applying Primary Pathways and Principles. Brief# 1. Improving Nutrition Through Agriculture Technical Brief Series. Arlington, VA: USAID/Strengthening Partnerships, Results, and Innovations in Nutrition Globally (SPRING) Project.Google Scholar
Iannetta, PPM, Young, M, Bachinger, J, Bergkvist, G, Doltra, J, Lopez-Bellido, RJ, Monti, M, Pappa, VA, Reckling, M, Topp, CFE, Walker, RL, Rees, RM, Watson, CA, James, EK, Squire, GR and Begg, GS (2016) A comparative nitrogen balance and productivity analysis of legume and non-legume supported cropping systems: the potential role of biological nitrogen fixation. Frontiers in Plant Science 7, 1700.CrossRefGoogle ScholarPubMed
Jones, AD, Shrinivas, A and Bezner-Kerr, R (2014) Farm production diversity is associated with greater household dietary diversity in Malawi: findings from nationally representative data. Food Policy 46, 1–12.CrossRefGoogle Scholar
Kassam, A, Friedrich, T, Shaxson, F and Pretty, J (2009) The spread of conservation agriculture: justification, sustainability and uptake. International Journal of Agricultural Sustainability 7, 292–320.CrossRefGoogle Scholar
Kassambara, A 2020. rstatix: Pipe-Friendly Framework for Basic Statistical Tests. R package version 0.6.0.https://CRAN.R-project.org/package=rstatix.Google Scholar
Kassie, GT, Erenstein, O, Mwangi, W, La Rovere, R, Setimela, P and Langyintuo, A (2012) Characterization of maize production in Southern Africa: Synthesis of CIMMYT/ DTMA household level farming system surveys in Angola, Malawi, Mozambique, Zambia and Zimbabwe. Socio-Economics Program Working Paper 4, Mexico, D.F.: CIMMYT.Google Scholar
Kim, J, Mason, NM, Snapp, S and Wu, F (2019) Does sustainable intensification of maize production enhance child nutrition? Evidence from rural Tanzania. Agricultural Economics 50, 723–734.CrossRefGoogle Scholar
Kumar, N, Harris, J and Rawat, R (2015) If they grow it, will they eat and grow? Evidence from Zambia on agricultural diversity and child undernutrition. Journal of Development Studies 51, 1060–1077.CrossRefGoogle Scholar
Lenth, R (2019) emmeans: Estimated Marginal Means, aka Least-Squares Means. R package version 1.3.4. Available at https://CRAN.R-project.org/package=emmeans.Google Scholar
Li, C, Dong, Y, Li, H, Shen, J and Zhang, F (2016) Shift from complementarity to facilitation on P uptake by intercropped wheat neighboring with faba bean when available soil P is depleted. Scientific Reports 6, 18663–18663.CrossRefGoogle Scholar
Li, J, Huang, L, Zhang, J, Coulter, JA, Li, L and Gan, Y (2019) Diversifying crop rotation improves system robustness. Agronomy for Sustainable Development 39, 38.CrossRefGoogle Scholar
Li, C, Hoffland, E, Kuyper, TW, Yu, Y, Li, H, Zhang, C, Zhang, F and van der Werf, W (2020) Yield gain, complementarity and competitive dominance in intercropping in China: a meta- analysis of drivers of yield gain using additive partitioning. European Journal of Agronomy 113, 125987.CrossRefGoogle Scholar
Lipper, L, Thornton, P, Campbell, BM, Baedeker, T, Braimoh, A, Bwalya, M, Caron, P, Cattaneo, A, Garrity, D and Henry, K (2014) Climate-smart agriculture for food security. Nature Climate Change 4, 1068–1072.CrossRefGoogle Scholar
Lobell, DB, Burke, MB, Tebaldi, C, Mastrandrea, MD, Falcon, WP and Naylor, RL (2008) Prioritizing climate change adaptation needs for food security in 2030. Science (New York, N.Y.) 319, 607–610.CrossRefGoogle ScholarPubMed
Madembo, C, Mhlanga, B and Thierfelder, C (2020) Productivity or stability? Exploring maize-legume intercropping strategies for smallholder conservation agriculture farmers in Zimbabwe. Agricultural Systems 185, 102921.CrossRefGoogle Scholar
Mafongoya, P L and Kuntashula, E (2005) Participatory evaluation of Tephrosia species and provenances for soil fertility improvement and other uses using farmer criteria in eastern Zambia. Experimental Agriculture 14, 69–80.CrossRefGoogle Scholar
Manda, J, Gardebroek, C, Khonje, MG, Alene, AD, Mutenje, M and Kassie, M (2016) Determinants of child nutritional status in the eastern province of Zambia: the role of improved maize varieties. Food Security 8, 239–253.CrossRefGoogle Scholar
Matsui, T and Singh, BB (2003) Root characteristics in cowpea related to drought tolerance at the seedling stage. Experimental Agriculture 39, 29–38.CrossRefGoogle Scholar
Mazunda, J and Droppelmann, K (2012) Maize consumption estimation and dietary diversity assessment methods in Malawi (Policy Note No. 11). International Food Policy Research Institute.Google Scholar
Messina, MJ (1999) Legumes and soybeans: overview of their nutritional profiles and health effects. American Journal of Clinical Nutrition 70, 439s–450s.CrossRefGoogle ScholarPubMed
Mhlanga, B, Cheesman, S, Maasdorp, B, Muoni, T, Mabasa, S, Mangosho, E and Thierfelder, C (2015) Weed community responses to rotations with cover crops in maize-based conservation agriculture systems of Zimbabwe. Crop Protection 69, 1–8.CrossRefGoogle Scholar
Mhlanga, B, Cheesman, S, Maasdorp, B, Mupangwa, W and Thierfelder, C (2016) Relay intercropping and mineral fertilizer effects on biomass production, maize productivity and weed dynamics in contrasting soils under conservation agriculture. Journal of Agricultural Science 155, 1–12.Google Scholar
Murendo, C, Nhau, B, Mazvimavi, K, Khanye, T and Gwara, S (2018) Nutrition education, farm production diversity, and commercialization on household and individual dietary diversity in Zimbabwe. Food & Nutrition Research 62, 1–12.CrossRefGoogle ScholarPubMed
Ngwira, AR, Thierfelder, C and Lambert, DM (2013) Conservation agriculture systems for Malawian smallholder farmers: long-term effects on crop productivity, profitability and soil quality. Renewable Agriculture and Food Systems 28, 350–363.CrossRefGoogle Scholar
Nyagumbo, I, Mupangwa, W, Chipindu, L, Rusinamhodzi, L and Craufurd, P (2020) A regional synthesis of seven-year maize yield responses to conservation agriculture technologies in Eastern and Southern Africa. Agriculture, Ecosystems & Environment 295, 106898.CrossRefGoogle Scholar
Nyakurwa, C, Gasura, E and Mabasa, S (2017) Potential for quality protein maize for reducing protein energy undernutrition in maize dependent Sub-Saharan African countries: a review. African Crop Science Journal 25, 521–537.CrossRefGoogle Scholar
OCHA (2017) Food Security Situation of Southern Africa. United Nations Palais Des Nations New York, USA; Geneva, Switzerland: Office for The Coordination of Humanitarian Affairs; Available at https://www.unocha.org/.Google Scholar
Oksanen, J, Blanchet, FG, Kindt, R, Legendre, P, Minchin, PR, O'hara, R, Simpson, GL, Solymos, P, Stevens, MHH and Wagner, H (2013) Package ‘vegan’. Community ecology package, version 2 (9):1–295.Google Scholar
Powlson, DS, Stirling, CM, Thierfelder, C, White, RP and Jat, ML (2016) Does conservation agriculture deliver climate change mitigation through soil carbon sequestration in tropical agro-ecosystems? Agriculture, Ecosystems & Environment 220, 164–174.CrossRefGoogle Scholar
Rajendran, S, Afari-Sefa, V, Shee, A, Bocher, T, Bekunda, M, Dominick, I and Lukumay, PJ (2017) Does crop diversity contribute to dietary diversity? Evidence from integration of vegetables into maize-based farming systems. Agriculture and Food Security 6, 50.CrossRefGoogle Scholar
Raseduzzaman, MD and Jensen, ES (2017) Does intercropping enhance yield stability in arable crop production? A meta-analysis. European Journal of Agronomy 91, 25–33.CrossRefGoogle Scholar
R Core Team (2019) R: A Language and Environment for Statistical Computing. Vienna, Austria: R Foundation for Statistical Computing. Available at https://www.R-project.org/.Google Scholar
Rusinamhodzi, L, Murwira, HK and Nyamangara, J (2006) Cotton-cowpea intercropping and its N2 fixation capacity improves yield of a subsequent maize crop under Zimbabwean rain-fed conditions. Plant and Soil 287, 327–336.CrossRefGoogle Scholar
Rusinamhodzi, L, Corbeels, M, van Wijk, MT, Rufino, MC, Nyamangara, J and Giller, KE (2011) A meta- analysis of long-term effects of conservation agriculture on maize grain yield under rain-fed conditions. Agronomy for Sustainable Development 31, 657–673.CrossRefGoogle Scholar
Rusinamhodzi, L, Corbeels, M, Nyamangara, J and Giller, KE (2012) Maize-grain legume intercropping is an attractive option for ecological intensification that reduces climatic risk for smallholder farmers in central Mozambique. Field Crops Research 136, 12–22.CrossRefGoogle Scholar
Rusinamhodzi, L, Makumbi, D, Njeru, JM and Kanampiu, F (2020) Performance of elite maize genotypes under selected sustainable intensification options in Kenya. Field Crops Research 249, 107738.CrossRefGoogle ScholarPubMed
Sapkota, TB, Jat, RK, Singh, RG, Jat, ML, Stirling, CM, Jat, MK, Bijarniya, D, Kumar, M, Yadvinder-Singh, , Saharawat, YS and Gupta, RK (2017) Soil organic carbon changes after seven years of conservation agriculture in a rice–wheat system of the eastern Indo-Gangetic Plains. Soil Use and Management. 33, 81–89.CrossRefGoogle Scholar
Shukla, G (1972) Some statistical aspects of partitioning genotype environmental components of variability. Heredity 29, 237–245.CrossRefGoogle ScholarPubMed
Sibhatu, KT, Krishna, VV and Qaim, M (2015) Production diversity and dietary diversity in smallholder farm households. Proceedings of the National Academy of Sciences 112, 10657.CrossRefGoogle ScholarPubMed
Simute, S, Phiri, CL and Tengnäs, B (1998) Agroforestry Extension Manual for Eastern Zambia. Nairobi, Kenya: Regional Land Management Unit. Nairobi: RELMA, pp. 256.Google Scholar
Smale, M (1995) “Maize is life”: Malawi's delayed green revolution. World Development 5, 819–831.CrossRefGoogle Scholar
Snapp, SS and Fisher, M (2015) “Filling the maize basket” supports crop diversity and quality of household diet in Malawi. Food Security 7, 83–96.CrossRefGoogle Scholar
Snapp, SS, Rohrbach, DD, Simtowe, F and Freema, HA (2002) Sustainable soil management options for Malawi: can smallholder grow more legumes? Agriculture, Ecosystems and Environment 91, 159–174.CrossRefGoogle Scholar
Steward, PR, Dougill, AJ, Thierfelder, C, Pittelkow, CM, Stringer, LC, Kudzala, M and Shackelford, GE (2018) The adaptive capacity of maize-based conservation agriculture systems to climate stress in tropical and subtropical environments: a meta-regression of yields. Agriculture, Ecosystems & Environment 251, 194–202.CrossRefGoogle Scholar
Stomph, T, Dordas, C, Baranger, A, de Rijk, J, Dong, B, Evers, J, Gu, C, Li, L, Simon, J, Jensen, ES, Wang, Q, Wang, Y, Wang, Z, Xu, H, Zhang, C, Zhang, L, Zhang, W-P, Bedoussac, L and van der Werf, W (2020) Chapter One - designing intercrops for high yield, yield stability and efficient use of resources: Are there principles? In Sparks, DL (ed.), Advances in Agronomy. Academic Press, Waltham, USA, pp. 1–50. doi:10.1016/bs.agron.2019.10.002.Google Scholar
Taschen, E, Amenc, L, Tournier, E, Deleporte, P, Malagoli, P, Fustec, J, Bru, D, Philippot, L and Bernard, L (2017) Cereal-legume intercropping modifies the dynamics of the active rhizospheric bacterial community. Rhizosphere 3, 191–195.CrossRefGoogle Scholar
Thierfelder, C and Wall, PC (2010) Rotation in conservation agriculture systems of Zambia: effects on soil quality and water relations. Experimental Agriculture 46, 309–325.CrossRefGoogle Scholar
Thierfelder, C, Cheesman, S and Rusinamhodzi, L (2012) A comparative analysis of conservation agriculture systems: benefits and challenges of rotations and intercropping in Zimbabwe. Field Crops Research 137, 237–250.CrossRefGoogle Scholar
Thierfelder, C, Matemba-Mutasa, R and Rusinamhodzi, L (2015) Yield response of maize (Zea mays L.) to conservation agriculture cropping system in Southern Africa. Soil and Tillage Research 146, 230–242.CrossRefGoogle Scholar
Tillman, G, Schomberg, H, Phatak, S, Mullinix, B, Lachnicht, S, Timper, P and Olson, D (2004) Influence of cover crops on insect pests and predators in conservation tillage cotton. Journal of Economic Entomology 97, 1217–1232.CrossRefGoogle ScholarPubMed
United Nations (2017) Household size and composition around the world (Data booklet No. ST/ESA/ SER.A/405). United Nations, Department of Economic and Social Affairs, Population Division.Google Scholar
Vanlauwe, B, Bationo, A, Chianu, J, Giller, KE, Merckx, R, Mokwunye, U, Ohiokpehai, O, Pypers, P, Tabo, R, Shepherd, KD, Smaling, EMA, Woomer, PL and Sanginga, N (2010) Integrated soil fertility management: operational definition and consequences for implementation and dissemination. Outlook on Agriculture 39, 17–24.CrossRefGoogle Scholar
Waddington, SR (2003) Grain legumes and green manures for soil fertility in Southern Africa: Taking stock of progress. Proceedings of a conference held 8–11 October 2002 at the Leopard Rock Hotel, Vumba, Zimbabwe. SoilFertNet and CIMMYT-Zimbabwe, Harare, Zimbabwe.Google Scholar
Waddington, SR, Karigwindi, J and Chifamba, J (2007) The sustainability of a groundnut plus maize rotation over 12 years on smallholder farms in the sub-humid zone of Zimbabwe. African Journal of Agricultural Research 2, 342–348.Google Scholar
Walkley, A and Black, IA (1934) An examination of the Degtjareff Method for determining soil organic matter and proposed modification of the chromic acid titration method. Soil Sci, 29–38CrossRefGoogle Scholar
Wheeler, T and von Braun, J (2013) Climate change impacts on global food security. Science (New York, N.Y.) 341, 508–513.CrossRefGoogle ScholarPubMed
Zobel, RW, Wright, MJ and Gauch, HG (1988) Statistical analysis of a yield trial. Agronomy Journal 80, 388–393.CrossRefGoogle Scholar
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