Phosphorus sorption and desorption characteristics of soils as affected by biochar

Ghodszad, Larissa; Reyhanitabar, Adel; Oustan, Shahin; Alidohkt, Leila

doi:10.1016/j.still.2021.105251

Cited by 31 publications

(21 citation statements)

References 43 publications

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“…To enable high crop yields, large quantities of chemical P fertilizer are often applied to agricultural soils. However, only a small amount of chemical P fertilizers supplied to the soil can be utilized by crops owing to the slow mobility and high fixation rate of P in soil (Kochian, 2012;Ghodszad et al, 2022). A grave consequence of P accumulation in soils is that it becomes a potential source of surface water eutrophication (Goyette et al, 2018;Chen et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…For example, the anthropogenic P load to freshwater from agriculture can reach 38% (Mekonnen and Hoekstra, 2018). Another challenge is the finite stock of unrenewable phosphate rocks, which pose a threat to the supply of chemical P fertilizer (Cordell and White, 2014;Gong et al, 2022). Therefore, better P management in agroecosystems is urgently required to overcome the challenges of food security and environmental health.…”

Section: Introductionmentioning

confidence: 99%

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Unveiling the role of dissolved organic matter on phosphorus sorption and availability in a 5-year manure amended paddy soil

Liu

et al. 2022

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unveiling the role of dissolved organic matter on phosphorus sorption and availability in a 5-year manure amended paddy soil

Liu

et al. 2022

Science of The Total Environment

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“…For phosphate ( PO 3− 4 ), several studies revealed sorption to biochar (Rashmi et al 2020;Takaya et al 2016;Wang et al 2021), but different factors were assumed to be responsible for PO 3− 4 sorption. For example, biochar feedstock (Gronwald et al 2015), soil acidity (Ghodszad et al 2022), or higher process temperature (Trazzi et al 2016;Zhang et al 2016) were hypothesised as main factors controlling sorption, while Fatima et al (2021) and Morales et al (2013) reported more PO 3− 4 sorption by biochars produced with lower temperatures. However, Alling et al (2014) and Schneider and Haderlein (2016) found only weak PO 3− 4 sorption, while other studies reported none at all (Morales et al 2021;Yao et al 2012;Zheng et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Amending a tropical Arenosol: increasing shares of biochar and clay improve the nutrient sorption capacity

Beusch

Melzer

Cierjacks

et al. 2022

Biochar

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Tropical Arenosols may be challenging for agricultural use, particularly in semi-arid regions. The aim of this study was to evaluate the impact of the addition of increasing shares of biochar and clay on the nutrient sorption capacity of a tropical Arenosol. In batch equilibrium experiments, the sorption of ammonium-N ($$\hbox {NH}_{4}^{+}{\text{-N}}$$ NH 4 + -N ), nitrate-N ($$\text {NO}_{3}^{-}{\text{-N}}$$ NO 3 - -N ), potassium ($$\text {K}^{+}$$ K + ), and phosphate-P ($$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P ) was quantified for mixtures of an Arenosol with increasing shares of biochar and clay (1%, 2.5%, 5%, 10%, 100%) and the unmixed Arenosol, biochar, and clay. The mid-temperature biochar was produced from Prosopis juliflora feedstock; the clayey material was taken from the sedimentary parent material of a temporarily dry lake. Only the Arenosol–biochar mixture with 10% biochar addition and the biochar increased the $$\text {NH}_{4}^{+}{\text{-N}}$$ NH 4 + -N maximum sorption capacity ($$q_{max}$$ q max ) of the Arenosol, by 34% and 130%, respectively. The $$q_{max}$$ q max of $$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P slightly increased with ascending biochar shares (1–10%) by 14%, 30%, 26%, and 42%, whereas the undiluted biochar released $$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P . Biochar addition slightly reduced $$\text {NO}_{3}^{-}{\text{-N}}$$ NO 3 - -N release from the Arenosol but strongly induced $$\text {K}^{+}$$ K + release. On the other hand, clay addition of 10% and clay itself augmented $$q_{max}$$ q max of $$\text {NH}_{4}^{+}{\text{-N}}$$ NH 4 + -N by 30% and 162%; ascending clay rates (1–100%) increased $$q_{max}$$ q max for $$\text {PO}_{4}^{3-}{\text{-P}}$$ PO 4 3 - -P by 78%, 130%, 180%, 268%, and 712%. Clay rates above 5% improved $$\text {K}^{+}$$ K + sorption; however, no $$q_{max}$$ q max values could be derived. Sorption of $$\text {NO}_{3}^{-}{\text{-N}}$$ NO 3 - -N remained unaffected by clay amendment. Overall, clay addition proved to enhance the nutrient sorption capacity of the Arenosol more effectively than biochar; nonetheless, both materials may be promising amendments to meliorate sandy soils for agricultural use in the semi-arid tropics.

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“…However, the form of carbon added to the soil affects P availability in different ways, with raw residues with a high C/P ratio (e.g. wheat straw, sawdust, and corn stalks) increasing phosphate retention, while biochars produced from these same residues, decreasing the p retention process and increasing P availability in the soil [12].…”

Section: Introductionmentioning

confidence: 99%

“…There are three mechanisms by which biochar can increase the bioavailability of P in the soil: (1) the content of P available in the biochar can increase the activity of P in the soil solution [12][13][14]; (2) the addition of biochar can increase the soil pH and, consequently, decrease the phosphate reactions with iron (Fe) and aluminium (Al) compounds [4,12,15,16]; (3) the organic surface acids of the biochar can complex Fe, Al, and calcium (Ca) ions active in the soil solution and also bind to phosphate sorption sites, such as clay minerals and Fe and Al oxyhydroxides [13,16].…”

Section: Introductionmentioning

confidence: 99%

Soil mineralogy-controlled phosphorus availability in soils mixed with phosphate fertiliser and biochar

Matoso

Wadt

Souza

et al. 2022

Environmental Technology

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The biochar amendment to soil proved to be beneficial to improve soil quality and provide nutrients. However, the effect of biochar on the availability of P is still controversial. We aim to study the effect of adding phosphate fertiliser and biochar on the P bioavailability in soils of different mineralogies. Eight biochars derived from biomass (rice husk and coffee husk), soil (sandy and clayey), and phosphate fertiliser (triple superphosphate) were produced. The biochar enrichment process with superphosphate was carried out before and after pyrolysis. Thus, we tested two biochar groups: (1) enriched biochars prior to pyrolysis; (2) enriched biochars after pyrolysis. These biochars were tested as P sources in soils of three mineralogies (kaolinite/oxide, kaolinite, and smectite). Batch sorption-desorption experiments were conducted. The sorbed P was fractionated to examine the factors controlling the retention of applied P. In the three soil mineralogies the use of enriched biochars prior to pyrolysis results in lower availability of P. In contrast, the enriched biochars after pyrolysis increase the bioavailability of P. The coffee husk biochar is more suitable than rice husk biochar to protect P from soil retention reactions. The use of sandy soil rather than clayey soil in enriched biochars compositions results in higher P content availability when applied to soils. The factor that controls the retention of P is the reaction between P, organic compounds, and Fe and Al compounds. The greater the relationship between biochar and soluble P in the fertiliser, the higher the increase of P retention.

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Phosphorus sorption and desorption characteristics of soils as affected by biochar

Cited by 31 publications

References 43 publications

Unveiling the role of dissolved organic matter on phosphorus sorption and availability in a 5-year manure amended paddy soil

Unveiling the role of dissolved organic matter on phosphorus sorption and availability in a 5-year manure amended paddy soil

Amending a tropical Arenosol: increasing shares of biochar and clay improve the nutrient sorption capacity

Soil mineralogy-controlled phosphorus availability in soils mixed with phosphate fertiliser and biochar

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