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
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Date
2017
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Taylor & Francis
Abstract
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.
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This article is Published by Taylor & Francis 2017, and is also available at https://doi.org/10.1080/03650340.2017.1353216
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Citation
ARCHIVES OF AGRONOMY AND SOIL SCIENCE, 2018 VOL. 64, NO. 3, 384–397