Residual effects of direct application of Burkina Faso phosphate rock on rice cultivation in Ghana

Nakamura, Satoshi; Fukuda, Monrawee; Issaka, Roland Nuhu; Dzomeku, Israel K.; Buri, Moro M.; Avornyo, Vincent Kodjo; Adjei, Eric Owusu; Awuni, Joseph A.; Tobita, Satoshi

doi:10.1007/s10705-016-9788-8

Cited by 9 publications

(7 citation statements)

References 13 publications

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“…The comprehensive study in West Africa on sorghum and pearl millet indicates the need to determine P-uptake and P-utilization in developing P-efficient varieties [138]. On the other hand, using phosphate rocks in Ghana, the yield of rice was increased not only for a single year but also for subsequent 2-3 years due to the residual effect [139].…”

Section: Soil Managementmentioning

confidence: 99%

Raising Crop Productivity in Africa through Intensification

Tadele

2017

Agronomy

133

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Section: Soil Managementmentioning

confidence: 99%

Raising Crop Productivity in Africa through Intensification

Tadele

2017

Agronomy

133

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“…Direct applications of BPR were previously found to be effective for rice cultivation in some agroecological zones of Sub-Saharan Africa [11][12][13]. However, BPR use is still limited due to its low intrinsic solubility and the variability of its effectiveness for rice in different soil conditions [14].…”

Section: Introductionmentioning

confidence: 99%

Site-specific responses of lowland rice to acidulated and calcined phosphate rock fertilizers in the Center-West region of Burkina Faso

et al. 2021

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Soil phosphorus (P) deficiency is a major constraint of crop production in Sub-Saharan Africa. In particular, in the Sudano-Sahelian zone of Burkina Faso, P is rarely replenished as fertilizer supplies are limited in rural areas and because of the socio-economic situation of farmers. There is however, an abundance of local phosphate rock resource in the country. The development of local inorganic P fertilizers to improve crop production and replace the nutrients removed after harvesting, as well as to promote to sustainable agriculture, is desired. This study evaluated the efficiency of low-grade Burkina Faso phosphate rock (BPR)-based P fertilizers, produced by acidulation and calcination-the major fertilizer processing methods, on lowland rice production and the soil factors influencing their effectiveness. The results showed that the acidulated P fertilizers were as effective as conventional commercial P fertilizers on various soil types, textures, and fertility. Calcined P fertilizers were consistently effective on fine-textured soils with high basic fertility. It was found that fine soil texture and basic fertility of the initial soils were important factors in agronomic efficiency of BPR-based fertilizers and the resilience of rice production to climatic variability. It is recommended that soil type, with respect to soil texture, soil properties, inherent fertility, and water availability, should be considered when using BPR-based fertilizers for rice cultivation.

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“…It has been revealed a depressive effect of the initial PR direct application under water-limited conditions such as upland cultivation. However, the initial P in soils may be enhanced and PR application and be effective as a residual effect during subsequent cultivations (Nakamura et al 2016), which may be the case in our sorghum straw, Comp, and BPR treatments. The Control and NPK treatments differed only by the absence of P application in control.…”

Section: Discussionmentioning

confidence: 87%

“…Nakamura et al (2013) found that sub-Saharan African PRs effectively achieve high performance in lowland rice, following direct application, regardless of the PR reactivity and the location investigated. However, under water-limited conditions such as upland cultivation of rice or other crops, the effects of the initial PR direct application may be depressed, although it may enhance the total P of soil and have a residual effect in subsequent cultivations (Nakamura et al 2016;Nakamura et al 2020). Since smallholder farmers are interested in producing high yields in rst year of cultivation and are not interested in waiting several years to bene t from the residual effects of direct PR application, it is essential to improve the agronomic effectiveness of PR using different technologies.…”

Section: Introductionmentioning

confidence: 99%

Sorghum Agronomic Performance and Soil Chemical and Microbiological Properties as Influenced by Burkina Faso Phosphate Rock-Enriched Composts

Sagnon

Iwasaki

Tibiri

et al. 2022

Preprint

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Purpose The low availability of phosphorus (P) severely limits crop production in sub-Saharan Africa. We evaluated phosphate rock-enriched composts on soil properties and sorghum growth for use as environment-friendly fertilizers. Methods Treatments were sorghum straw, compost (Comp), Phosphate Rock (BPR), BPR-enriched compost (P-Comp), BPR-soil-enriched compost (P-Comp-Soil), nitrogen-phosphorus-potassium (NPK, 60-90-30), and control without phosphorus and organic material (CT). Sorgum straw and composts were applied at 1.34 tons ha-1. The amounts of nitrogen, phosphorus, and potassium in treatments, except in CT, were adjusted to 60, 90, 30 kg ha-1, with urea, BPR, and KCl, respectively. Sorghum vr. Kapelga was cultivated and soil samples were collected on days 52, 93, and 115 (harvest) for analysis. Results NPK and P-Comp-Soil provided the best sorghum yields. Soil available P was less in these treatments. P-Comp-Soil-amended soils recorded higher populations of bacteria (16S rRNA), acid phosphatase (aphA), phosphonatase (phnX), glucose dehydrogenase (gcd) and its cofactor pyrroloquinoline quinone (pqqE) genes. Phosphate-specific transporter (pstS) and arbuscular mycorrhizal fungi (AMF) abundances were generally higher in P-Comp-Soil soils, especially at the early growth stage. This active microbial activity in the P-Comp-Soil added to its initially higher available P justified a better nutrient uptake and yields comparable to NPK. Multivariate analysis also revealed the contribution of nitrogen, carbon, and exchangeable cations in sorghum growth. Conclusion This study demonstrated that direct phosphate rock application is not effective in sub-Saharan African upland cultivation. Alternative to chemical fertilizers, soils may be amended with phosphate rock-enriched composts, a niche of beneficial microbes improving soil health.

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Residual effects of direct application of Burkina Faso phosphate rock on rice cultivation in Ghana

Cited by 9 publications

References 13 publications

Raising Crop Productivity in Africa through Intensification

Raising Crop Productivity in Africa through Intensification

Site-specific responses of lowland rice to acidulated and calcined phosphate rock fertilizers in the Center-West region of Burkina Faso

Sorghum Agronomic Performance and Soil Chemical and Microbiological Properties as Influenced by Burkina Faso Phosphate Rock-Enriched Composts

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