Browsing by Author "Sedogo Michel Papaoba"

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    Effectiveness of combined application of Kodjari phosphate rock, water soluble phosphorus fertilizer and manure in a Ferric Lixisol in the centre west of Burkina Faso
    (Taylor & Francis, 2017) Soma Dohan Mariam; Kiba Delwendé Innocent; Gnankambary Zacharia; Ewusi-Mensah Nana; Sanou Minata; Nacro Hassan Bismarck; Lompo Francois; Sedogo Michel Papaoba; Abaidoo R. C
    Increasing soil phosphorus and organic matter content for crop produc tion while reducing the cost of production are required to facilitate the achievement of green revolution in Africa. Field and pot experiments were laid out during 2012 and 2013 to assess the effects of combined application of Kodjari phosphate rock (PR) and water soluble phosphorus on sorghum yields, P uptake and Lixisol characteristics in the centre west of Burkina Faso. Five P fertilizers treatments (zero P, 100% TSP (triple super phosphate), 100% PR, 50% PR + 50% TSP, 75% PR + 25% TSP) and two cow manure treatments (zero, 5 t ha−1) were tested. In field experi ment, 50% PR + 50% TSP was as effective as 100% TSP in increasing sorghum yield above the control by 30% in 2012 and 50% in 2013 and Puptake by 30% in both years. Manure had an additive effect on phos phorus fertilizers in increasing sorghum yields and P uptake. In pot experiment, increases of Ca uptake, soil pH and microbial P were observed with the application of 50% PR + 50% TSP. Our results suggest that formulation of fertilizer combining phosphate rock and mineral P would improve sorghum yields and income of smallholders.