Phosphorus fixation and its relationship with physicochemical properties of soils on the Eastern flank of Mount Cameroon

Mbene, Kenneth; SuhTening, Aaron; Suh, Cheo Emmanuel; Fomenky, Norbert Nkafu; Bih, Vivian

doi:10.5897/ajar2017.12530

Cited by 9 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At these pH values, Al, Fe and Mg are highly soluble and will react with the phosphate ions (H2PO4 -) to form hydroxyl-phosphate which is insoluble and unavailable for plants. The low contents of available P observed in the soils of the study area were in agreement with the studies made by Mbene et al (2017) on soils collected within this region. There is a relationship between adsorption and soil physicochemical properties.…”

Section: Discussionsupporting

confidence: 90%

“…Similarly, Debicka et al (2016) carried out a similar investigation like Borggaard et al (1990) but used calcium chloride as the background electrolyte and concluded that OM was the main soil constituent, which increased P binding and limited P leaching from sandy soils. The interpretation of the results, therefore, could be that the organic matter in the soil solution might have blocked P adsorption sites (Hunt et al, 2007;Mbene et al, 2017), even though its removal slightly affected these binding sites (Table 4) but it increased the soil surface area which is responsible for the increase in P maximum adsorption (Table 5). Since was the dominant cation (Table 3) in these cultivated soils, phosphate behaviour in volcanic soils should be better simulated in the present study.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The Influence of Organic Matter on Phosphorus Fixation in Soils from the Eastern Flank of Mount Cameroon

K.,

A.S.,

C.E.

et al. 2023

African Journal of Environment and Natural Science Research

View full text Add to dashboard Cite

The maximum phosphate fixation (KF) and phosphorus sorption capacity (PSC) of soil samples collected from the surface and sub-surface horizons of five volcanic soil profiles from the eastern flank of Mount Cameroon were investigated before and after organic matter removal. The aim of this research was to investigate the influence of soil organic matter (OM) on phosphorus (P) fixation. The removal of soil OM from the soil samples was accomplished by the use of sodium hypochlorite. Phosphorus fixation studies were performed on the treated and untreated soil samples using calcium chlorite as the background electrolyte. Fixation data were interpreted with Freundlich adsorption isotherm. The results indicated that the removal of OM had an influence on both KF and PSC. Removal of soil OM decreased PSC and increased KF for all soils. The inhibition of aluminium oxide and the reduction of soil surface area after the removal of OM were the justifications for the increase in P fixation.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

The Influence of Organic Matter on Phosphorus Fixation in Soils from the Eastern Flank of Mount Cameroon

K.,

A.S.,

C.E.

et al. 2023

African Journal of Environment and Natural Science Research

View full text Add to dashboard Cite

show abstract

“…Adsorption of P on Cameroonian acid soil had let to different conclusion as to the best fit isotherms. Previous work on the fixation of P on soil of the Eastern flank of Mount Cameroon displayed a best fit with a Freundlich model even though both isotherms had a coefficient of determination greater than 0.9 (Mbene et al, 2017). Comparing the P sorption maximum obtained from a Langmuir isotherm of the unamended soil (i.e.…”

Section: Resultsmentioning

confidence: 95%

“…Tropical soils in Africa are mostly acidic (Takow et al, 1991) and acidic soils are widely spread in the western region of Cameroon (Tematio et al, 2004) which presents critical levels of P (Tchuenteu, 1997). This is because of a high level of fixation via reaction with hydr(oxides) of Al and Fe found in clay minerals thus depriving P to plants resulting in poor growth (Mbene et al, 2017; Yadav et al, 2012). The fixation of P in soils is influenced by soil organic matter, pH, exchangeable Al, Fe, amount and type of silicate clays, calcium carbonate content (Eriksson et al, 2015; Gérard, 2016; Guppy et al, 2005) which affect soil biogeochemical processes (dissolution, adsorption and precipitation).…”

Section: Introductionmentioning

confidence: 99%

Effect of coffee husk and cocoa pods biochar on phosphorus fixation and release processes in acid soils from West Cameroon

Ngalani

Ondo²,

Njimou

et al. 2023

Soil Use and Management

View full text Add to dashboard Cite

Acid soil in West Cameroon has limited phosphorus (P) availability which limits plant growth. This is mainly because of low pH, high levels of exchangeable aluminium (Al) and iron (Fe) and fixation of P. In this study, acid soils, sampled in Bafang, were amended with biochar produced from coffee husks (CH) and cocoa pod husks (CP) at two different temperatures (350 and 550 °C) in other to evaluate the effect on the physicochemical properties of the acid soil and the effect on P sorption and desorption. The soil was amended with biochar at a rate of 0, 20, 40 and 80 g/kg and incubated for 7 and 60 days. Physicochemical properties of all soil–biochar samples were determined followed by sorption experiments and data fitted in the Langmuir and Freundlich isotherm models in other to evaluate soil P sorption capacity and its affinity to soil amended with biochar. Moreover, desorption studies were done to evaluate the availability of P in soil amended with biochar after sorption. The outcomes of this study reveal an increase in soil pH, electrical conductivity (EC), available P, soil organic carbon and a drastic decrease in exchangeable Al and Fe. The point of zero charge of biochar‐amended soil was higher than the control and increased with amendment rate. The experimental data of the sorption of P on soils and soil–biochar samples fits into Langmuir and Freundlich models (R2 > 0.9) suggesting that the P adsorption is controlled by both model mechanisms. Soil–biochar mixture results in a decrease in the sorption capacity as compared with the control and the decrease was predominant with increasing amendment rate. At amendment rates of 20, 40 and 80 g/kg after 7 days of incubation, Qmax for SCH350 were 2267, 2048 and 1823 mg/kg which increased to 2407, 2112 and 1990 mg/kg after 60 days of incubation. This tendency was observed for all biochar inputs with respect to the increase in incubation days. Furthermore, desorption of P from soil–biochar mixtures was enhanced with biochar added at greater rate and produced at higher temperature. The desorption percentage was increased by more than around 10% for all biochar types from 20 mg/kg to 80 mg/kg amendment. Thus, biochar addition to acid soils reduces P fixation to acid soil and improves P desorption to soil solution, thereby providing more available P in the soil solution and better conditions for plant growth.

show abstract

“…Unavailability of P for plants' uptake may be due to extreme soil pH. Under extreme acidity, P is adsorbed or held in active sites of the soil particles surfaces (Idris and Ahmed, 2012;Mbene et al, 2017). In acid soils, P reacts with oxides and hydroxides of Fe and Al, while in alkaline soils, P reacts with the oxides and hydroxides of cCa (Dabessa et al, 2018).…”

Section: Phosphorusmentioning

confidence: 99%

Soybean-Nodulating Rhizobia: Ecology, Characterization, Diversity, and Growth Promoting Functions

Nakei

Venkataramana

Ndakidemi

2022

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

The worldwide increase in population continues to threaten the sustainability of agricultural systems since agricultural output must be optimized to meet the global rise in food demand. Sub-Saharan Africa (SSA) is among the regions with a fast-growing population but decreasing crop productivity. Pests and diseases, as well as inadequate nitrogen (N) levels in soils, are some of the biggest restrictions to agricultural production in SSA. N is one of the most important plant-limiting elements in agricultural soils, and its deficit is usually remedied by using nitrogenous fertilizers. However, indiscriminate use of these artificial N fertilizers has been linked to environmental pollution calling for alternative N fertilization mechanisms. Soybean (Glycine max) is one of the most important legumes in the world. Several species of rhizobia from the four genera, Bardyrhizobium, Rhizobium, Mesorhizobium, and Ensifer (formerly Sinorhizobium), are observed to effectively fix N with soybean as well as perform various plant-growth promoting (PGP) functions. The efficiency of the symbiosis differs with the type of rhizobia species, soybean cultivar, and biotic factors. Therefore, a complete understanding of the ecology of indigenous soybean-nodulating rhizobia concerning their genetic diversity and the environmental factors associated with their localization and dominance in the soil is important. This review aimed to understand the potential of indigenous soybean-nodulating rhizobia through a synthesis of the literature regarding their characterization using different approaches, genetic diversity, symbiotic effectiveness, as well as their functions in biological N fixation (BNF) and biocontrol of soybean soil-borne pathogens.

show abstract

Phosphorus fixation and its relationship with physicochemical properties of soils on the Eastern flank of Mount Cameroon

Cited by 9 publications

References 21 publications

The Influence of Organic Matter on Phosphorus Fixation in Soils from the Eastern Flank of Mount Cameroon

The Influence of Organic Matter on Phosphorus Fixation in Soils from the Eastern Flank of Mount Cameroon

Effect of coffee husk and cocoa pods biochar on phosphorus fixation and release processes in acid soils from West Cameroon

Soybean-Nodulating Rhizobia: Ecology, Characterization, Diversity, and Growth Promoting Functions

Contact Info

Product

Resources

About