Effect of water-dispersible colloids in manure on the transport of dissolved and colloidal phosphorus through soil column

Zang, Ling; Tian, Guangming; Liu, Junzhi; Peng, Guiqun

doi:10.5897/ajar11.1520

Cited by 4 publications

(5 citation statements)

References 36 publications

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“…The TP levels increased significantly in the leachate collected right after manure application and then declined and stabilized. Such an immediate transport of P (first flush) in leachate to litter application is consistent with other studies (Kleinman et al., 2005; Zang et al., 2011).…”

Section: Resultssupporting

confidence: 92%

Preferential flow of phosphorus and nitrogen under steady‐state saturated conditions

Malhotra,

Lamba,

Way

et al. 2024

Vadose Zone Journal

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Repeated broiler litter application on agricultural lands can cause nutrient enrichment of subsurface effluent, especially with the existence of preferential flow through soil macropores. Previous studies quantifying soil macropores have not attempted to establish a connection of soil macropore characteristics with the subsurface nutrient (nitrogen [N] and phosphorus [P]) losses, across different topographical locations in the field. This study investigated the effect of broiler litter application and preferential flow on subsurface nutrient transport (N and P) at different topographical positions (upslope, midslope, and downslope) in a no‐till pasture field located in Alabama, USA. Twelve intact soil columns (150 mm id and 500 mm length) were used, and the nutrient leaching measurements from laboratory experiments were linked to soil macropore characteristics quantified using X‐ray computed tomography image analysis and solute transport modeling. Treatments included surface broadcast broiler litter (5 Mg ha−1, on dry basis) and unamended control. Leachates were analyzed for dissolved reactive P (DRP), total P (TP), and nitrate + nitrite‐N (NO3− + NO2−–N). The bromide breakthrough curves provided evidence of preferential flow in all columns. Litter application significantly increased leachate P concentrations, and average TP and DRP concentrations were significantly higher in the leachate from upslope columns compared to those at downslope location. The NO3−–N concentrations in leachate exceeded the US EPA drinking water standard of 10 mg L−1 in all the treatment columns. The highest flow‐weighted mean concentrations of TP and DRP, at 2.7 and 2.5 mg L−1, respectively, were recorded in the upslope columns. Soil physicochemical properties and nutrient leaching losses varied substantially across topographical positions, indicating a need for variable litter application rates to reduce P build‐up and subsequent leaching in vulnerable locations within the field. The relevance of the effect of topographic position on nutrient leaching found in this study should be further tested by investigating a wider range of slopes and soil types in pastures.

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Section: Resultssupporting

confidence: 92%

Preferential flow of phosphorus and nitrogen under steady‐state saturated conditions

Malhotra,

Lamba,

Way

et al. 2024

Vadose Zone Journal

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“…Christophe et al reported that the CP concentration ranged 0.002-0.03 mg L −1 , accounting for 3-26% of TP [11]. Other studies showed that compared with unfertilized soils, the amount of CP migration in fertilized soil generally increased by >25% [17]. In our study, CP, PP and DP contributed 31-61%, 14-43% and 4-41% to TP leaching, respectively.…”

Section: How Important Is Colloidal Phosphorus (Cp) In Phosphorus Lea...supporting

confidence: 50%

“…It is reported that the transportation of CP was strongly affected by pH. Specifically, changes of pH can drive the release of colloids, and the amount of colloid particles released from water-bearing media increases with increasing pH [17,34,35]. There was a positive significant nonlinear correlation between pH and P concentration in leachate (Figure 6).…”

Section: Impact Factors Of Colloidal Phosphorus During Leaching Eventsmentioning

confidence: 86%

“…TP in the leach solution was digested with acidic potassium persulfate (121 °C, 30 min) and determined. The P forms were further defined and separated based on previous studies [12,15,17], i.e., CP (2 μm > diameter > 0.1 μm), Pissolved Phosphorus(DP) (diameter < 0.1 μm), and Particulate Phosphorus (PP) (diameter > 2 μm). The mixture of CP and DP was obtained after the liquid was digested with acidic potassium persulfate at 121 °C To study the response of CP to different incubation times after fertilization, the soil columns were incubated after the column was filled for 7 days (T1), 14 days (T2), 21 days (T3), 28 days (T4), and 56 days (T5).…”

Section: Leachate and Soil Analysismentioning

confidence: 99%

“…TP in the leach solution was digested with acidic potassium persulfate (121 • C, 30 min) and determined. The P forms were further defined and separated based on previous studies [12,15,17], i.e., CP (2 µm > diameter > 0.1 µm), Pissolved Phosphorus(DP) (diameter < 0.1 µm), and Particulate Phosphorus (PP) (diameter > 2 µm). The mixture of CP and DP was obtained after the liquid was digested with acidic potassium persulfate at 121 • C for 30 min through a 2 µm microporous membrane, while the other part of the leachate was filtered through 0.1 µm microporous membranes and the DP was obtained after the liquid was digested at 121 • C for 30 min with acidic potassium persulfate [15].…”

Section: Leachate and Soil Analysismentioning

confidence: 99%

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Effects of Phosphorus Fertilizer Application Rates on Colloidal Phosphorus Leaching in Purple Soil in Southwest China

Zheng

et al. 2022

Water

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Phosphorus (P) lost via leaching from agricultural land is of major concern for water resource managers worldwide, and colloidal phosphorus (CP) may have a high contribution, since it is an important mobile form of P in soil and subsurface drainage. The objective of this study is to relate P fertilization application rates to CP leaching. To eliminate the influence of climate and facilitate the accurate measurement of P contents in different soil layers, we established soil columns to investigate the impacts of fertilizer application rates and timing on P leaching. Therefore, a soil column leaching experiment was undertaken with different P fertilization application rates (0, 20, 40, 100, 200, and 400 mg kg−1) for purple soil in southwest China. P application rates had significant effects on CP and dissolved phosphorus concentrations in the top soils (p < 0.05) (e.g., 0–10 cm in this study), and they further increased P leaching loss by 24–375%. CP was the dominant P form and contributed 31–61% to total phosphorus in the leachate. The concentration of different P forms in leachates decreased significantly over time, and the risk of P leaching loss was greater within two weeks after P application (p < 0.05). The advisable range of P application rate is recommended to be 0–450 kg ha−1 for agricultural practice, and it is also recommended to keep P fertilizer in the soil for more than two weeks. Some countermeasures, related to application rates and timing, should be taken to minimize the buildup of P in the field and reduce the risk of P leaching.

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Metal-organic frameworks based on heterocyclic ligands and some transition metals as effective carbon steel corrosion inhibitors in aqueous environment

Fouda

Etaiw

Sobhy

2022

Journal of Molecular Liquids

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Effect of water-dispersible colloids in manure on the transport of dissolved and colloidal phosphorus through soil column

Cited by 4 publications

References 36 publications

Preferential flow of phosphorus and nitrogen under steady‐state saturated conditions

Preferential flow of phosphorus and nitrogen under steady‐state saturated conditions

Effects of Phosphorus Fertilizer Application Rates on Colloidal Phosphorus Leaching in Purple Soil in Southwest China

Metal-organic frameworks based on heterocyclic ligands and some transition metals as effective carbon steel corrosion inhibitors in aqueous environment

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