Distribution of Phosphorus along a Toposequence on an Alfisol in Minna, Niger State

Tsado, P. A.; Igwe, C. A.; Lawal, Bas; Ezenwa, M. I. S.; Adeboye, M. K. A.; Eze, P.N.

doi:10.4314/as.v11i1.5

Cited by 2 publications

(2 citation statements)

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“…This could be especially beneficial in soils with low P levels, as it would enhance P availability. Organic acids have varying degrees of effectiveness in mobilizing P with citric acid being the most effective followed by tartaric acid and oxalic acid [29].…”

Section: B) Soil Phosphorus Mining Strategiesmentioning

confidence: 99%

Advances for Improving Phosphorus Use Efficiency in Agriculture

Chaudhari,

Zinzala

2023

IJPSS

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An impending crisis is the continuous availability of phosphate fertilizers, which underlie global food production. The rock phosphate deposits on which the world depends are not only finite but many are polluted and many are located in geopolitically unstable locations, implying that significant changes will be required to maintain food supply for an increasing global population. There is no single solution, but a combination of phosphorus management measures is required not just to extend the life of the remaining non-renewable rock phosphate sources, but also to result in a more efficient, sustainable phosphorus cycle. Improving the effectiveness of fertilizer applications to agricultural land, as well as a better understanding of phosphorus cycling in soil-plant systems and the interplay between soil physics, chemistry and biology in conjunction with plant characteristics are among the solutions. The finite nature of rock phosphate supply and the development of other sources of phosphorus fertilizers is unavoidable. There are clear prospects and it is now critical to prioritize a concerted effort to increase phosphorus usage efficiency.

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Section: B) Soil Phosphorus Mining Strategiesmentioning

confidence: 99%

Advances for Improving Phosphorus Use Efficiency in Agriculture

Chaudhari,

Zinzala

2023

IJPSS

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“…According to Sarker & Karmoker (2011), 92% soils of tropics are deficient in available P and the P deficiency occurs either low in the soil system or unavailable forms of applied fertilizer to plants (Sharif et al, 2013). Adsorption is one factor that limits P availability in soil solution by various physical and chemical soil properties and management practices (Tsado et al,2012Moazed, et al, 2010. Thefore, adsorption is the net accumulation of a chemical at the interface between the solid phase and aqueous solution phase, which determines availability of native soil nutrients and the rate of nutrients to be applied to soil as fertilizers (Khan et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

The Effect of pH on Phosphorus Adsorption in Acidic Soils of Tsegede, Western Zone of Tigray, Ethiopia

Tareke¹,

Woldetensai²,

Birhane³

2020

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Background: Although soils in the acidic soils of Tsegede (Skeletic Leptosols, Cambic Leptosols, Leptic Cambisols and Dystric Cambisols) are characterized by low available P contents, study on P adsorption characteristics is limited information. The purpose of this experiment was to evaluate P adsorption characteristics in different acidity ranges of soils. Material and method: Potassium dihydrogen phosphate (KH2PO4) was used for the adsorption isotherm studies by duplicating 3 g soil from each soil types at different acidity ranges of ten soil samples with 50 ml of P in 0.01 M CaCl2 solution having 0, 20, 40, 60, 80,100 mg P L-1. Langmuir and Freundlich adsorption isotherm models were used to describe adsorption processes and the relationships between P adsorption and soil properties were determined by correlation. Results: Phosphorus adsorption increased significantly with increasing P levels and it increased as soil pH declines. The maximum and minimum P-adsorptions were obtained from very strongly acidic Skeletic Leptosols and from moderately acidic Dystric Cambisols, respectively. Comparing the two models, Langmuir linear model showed a better fit to the tested soils compared to Freundlich model. The regression coefficients (R2) for the fitted Langmuir P adsorption isotherms were highly significant ranging from (0.955 to 0.999) and the adsorption maxima obtained from the Langmuir isotherm ranged from 357 mg P kg-1 soil in strongly acidic Dystric Cambisols to 2500 mg P kg-1 soil in very strongly acidic Skeletic Leptosols. The bonding energy (k) for Langmuir adsorption model varied from 0.012 to 2.8 L mg-1 and both the highest (2.8 L mg-1) and lowest (0.012 L mg-1) k values were obtained from strongly and moderately acidic Dystric Cambisols. The cation exchange capacity (CEC) and organic carbon (OC) were positively correlated with the Langmuir adsorption maxima (b) and negatively correlated with available P and soil pH. Conclusion: Increments of soil pH using different amendments and their proper management in soils are important in making productive use and higher dose of P is required by soils with higher fixation. Alternative P management strategies are also needed to reduce P adsorption and enhance P availability in such acidic soils in the study areas.

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Distribution of Phosphorus along a Toposequence on an Alfisol in Minna, Niger State

Abstract: The distribution of various forms of phosphorus was evaluated along a toposequence located in an Alfisol in Teaching and

Cited by 2 publications

References 6 publications

Advances for Improving Phosphorus Use Efficiency in Agriculture

Advances for Improving Phosphorus Use Efficiency in Agriculture

The Effect of pH on Phosphorus Adsorption in Acidic Soils of Tsegede, Western Zone of Tigray, Ethiopia

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Distribution of Phosphorus along a Toposequence on an Alfisol in Minna, Niger State

Abstract: The distribution of various forms of phosphorus was evaluated along a toposequence located in an Alfisol in Teaching and

Cited by 2 publications

References 6 publications

Advances for Improving Phosphorus Use Efficiency in Agriculture

Advances for Improving Phosphorus Use Efficiency in Agriculture

The Effect of pH&nbsp;on Phosphorus Adsorption in Acidic Soils of Tsegede, Western Zone of Tigray, Ethiopia

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The Effect of pH on Phosphorus Adsorption in Acidic Soils of Tsegede, Western Zone of Tigray, Ethiopia