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Insecticide Spray Regime Effect on Cowpea Yield and Financial
Returns in Northern Ghana
Kotu B.1, Abdul Rahman N.1, Larbi ...
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Insecticide spray regime effect on cowpea yield and financial returns in northern Ghana

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Poster prepared by Kotu, B., Abdul Rahman, N., Larbi, A., Akakpo, D.B., Asante, M., Mellon, S.B. and Hoeschle-Zeledon, I. for the AfrIca RISING West Africa Review and Planning Meeting, Accra, 30 March-1 April 2016

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Insecticide spray regime effect on cowpea yield and financial returns in northern Ghana

  1. 1. Insecticide Spray Regime Effect on Cowpea Yield and Financial Returns in Northern Ghana Kotu B.1, Abdul Rahman N.1, Larbi A.1, Akakpo D. B.3, Asante M.1, Mellon S. B3, Hoeschle-Zeledon I.2 1International Institute of Tropical Agriculture (IITA) - Tamale, Ghana 2Interational Institute of Tropical Agriculture (IITA) - Ibadan, Nigeria 3Wageningen University - Wageningen, Netherlands Contact: b.kotu@cgiar.org Key research activities A split plot design with eighteen replications across the three northern regions was used. Two spray regimes (one spray and three sprays) were the main plots and 6 cowpea varieties (Sangotra, Apagbaala, Padituya, IT 99K 573-1-1, Zaayura, and farmers’ local variety) were the sub plots. Grain yield was measured and its gross return, return to labor per person day, benefit cost ratio and stochastic dominance were estimated. Implications of the research for generating development outcomes Results and main findings • Spraying cowpea three times had significant effects on grain yield (Fig. 1) • Insecticide spraying regime affect gross margin, return to labor per person day and benefit cost ratio (Table 1) • First degree stochastic dominance analysis also shows that the higher spray regime is dominant over the lower spray regime (Fig. 2). Spraying insecticides three times on cowpea did not only increases grain yield and net returns, but also reduces the probability of getting lower yields and financial returns which makes it suitable to smallholder farmers who are usually risk averse. Results from this study can be used for scaling-up activity in Africa RISING phase 2 to improve cowpea productivity in in northern Ghana. How this work would continue in Africa RISING phase 2 The Africa Research In Sustainable Intensification for the Next Generation (Africa RISING) program comprises three research-for- development projects supported by the United States Agency for International Development as part of the U.S. government’s Feed the Future initiative. Through action research and development partnerships, Africa RISING will create opportunities for smallholder farm households to move out of hunger and poverty through sustainably intensified farming systems that improve food, nutrition, and income security, particularly for women and children, and conserve or enhance the natural resource base. The three projects are led by the International Institute of Tropical Agriculture (in West Africa and East and Southern Africa) and the International Livestock Research Institute (in the Ethiopian Highlands). The International Food Policy Research Institute leads an associated project on monitoring, evaluation and impact assessment. www.africa-rising.net Current : Ministry of Food and Agriculture (MoFA) Future: Agricultural Technology Transfer project (ATT) Current partnerships and future engagements for out scaling 0 200 400 600 800 1000 One Spray Three SprayGrainYield(kg/ha) Spraying Regime (Frequency) Fig. 1: Cowpea grain yield as affected by spraying regime Spraying regime (frequency) Gross margin (Ghc ha-1) Return to labor day-1 (Ghc) BCR One 508 9.1 1.4 Three 1066 14.0 1.8 s.e 36.77 0.34 0.13 P-value 0.0086 0.0135 0.0148 Table 1: Effect of spraying regime on net financial returns 0 0.2 0.4 0.6 0.8 1 1.2 0 1000 2000 3000 4000 5000 One spray Three sprays Gross Margin (GhC/ha) Cumulativeprobability Fig. 2: Stochastic dominance for spraying regime on cowpea $1= GHS 3.3

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