Water soluble phosphorus released by poultry litter: effect of extraction and time after application

Tasistro, A.; Cabrera, M. L.; Kissel, D. E.

doi:10.1023/b:fres.0000019458.41410.77

Cited by 17 publications

(16 citation statements)

References 20 publications

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“…The pH of a suspension of poultry manure in DI w is generally alkaline mainly because of the presence of ammonia (NH 3 ) (Griffiths 2004). In previous research (Tasistro, Cabrera, and Kissel 2004), it was determined that 1 month after applying broiler litter to pastures in northeast Georgia, the pH of treated thatch had decreased from 8.1 to 6.7, which did not differ from the pH of the control. Although 15 days after broiler litter application, the pH of the top 1 cm of soil had increased significantly in comparison to the untreated soil, 1 month after the application, the pH of the treated and untreated top 1 cm of soil did not differ significantly.…”

Section: Introductionmentioning

confidence: 92%

Soluble Phosphorus Released by Poultry Wastes in Acidified Aqueous Extracts

Tasistro

Cabrera

Zhao

et al. 2007

Communications in Soil Science and Plant Analysis

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Research has shown that measured water-soluble phosphorus (WSP) from poultry litter might have been less than that released in the field. The effects of acidified extractions on soluble P (SP) concentrations were studied, and a buffer was selected to measure SP at pH 6.0, which is a target value for soil management in Georgia.Soluble P concentrations were extracted from poultry wastes at three pHs: 1) at natural pH, using deionized water (DI w ); 2) after titrating DI w suspensions with 1395 0.5N hydrochloric acid (HCl) to pH end-points 3.0, 4.0, and 6.0; and 3) at pH 6.0 with buffers of sodium (Na) acetate, potassium hydrogen phthalate (KHP), 2-(Nmorpholino) ethanesulphonic acid (MES), Na cacodylate, imidazole, N-(2-acetamido)-2-aminoethansulphonic acid (ACES), N-(carbamoyl-methyl) iminodiacetic acid (ADA), bis-(2-hydroxyethyl) imino]-tris-[(hydroxymethyl) methane (Bistris), and 1,4 piperazine-bis-(ethane sulphonic acid) (PIPES).Total SP increased 60% to 140% in suspensions acidified with HCl to pH 6.0 compared to suspensions at pH ! 8. Dissolved unreactive P responded more (2Â to 30Â) than molybdate reactive P(20 -100%). Buffers extracted more soluble minerals than suspensions acidified with HCl, probably because of their complexation ability. The most effective buffer was MES, because its effects seemed mainly due to acidification.

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Section: Introductionmentioning

confidence: 92%

Soluble Phosphorus Released by Poultry Wastes in Acidified Aqueous Extracts

Tasistro

Cabrera

Zhao

et al. 2007

Communications in Soil Science and Plant Analysis

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“…Considerable increase in acid soluble Pi (associated with Ca phosphates) has also been observed in previous studies [23] because of the large amounts of Ca added in manure. Ca content in poultry litter is reported to vary from 11 to 41% [24] and the HCl bound P was the largest fraction in poultry litter and biosolids, varying between 22 to 58% of total P [7,25]. The NaHCO 3 -P i represented on an average 16% of the total labile P forms (NaHCO 3 -P i þ NaOH-P i ) in the 0-20 cm soil layer.…”

Section: Change In Soil P Fractionsmentioning

confidence: 99%

An Environmental Threshold of Soil Test P and Degree of P Saturation of Brazilian Oxisols

Ghosh

Barbosa

Silva

2011

CLEAN Soil Air Water

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An Environmental Threshold of Soil Test P and Degree of P Saturation of Brazilian OxisolsTo develop P management guidelines for poultry litter application in Oxisols of Brazil, the relationship between water soluble P (WSP), soil test P (STP), and degree of P saturation (DPS) needs to be established. The study examined this relationship in Oxisols of Brazil receiving poultry litter. Soils were analyzed for Mehlich-1 P (M1-P), WSP, P fractions, P sorption index (PSI), and P saturation based on Mehlich-1 extractable P, Al, Fe (DPS M1 ), and PSI (DPS PSI ). Surface water bodies in the catchment area were examined for inorganic and total P. All the surface water bodies in the catchment area of the sampled plots were highly enriched in inorganic and organic P. Enrichment of soil P fractions following poultry litter application followed the order HClbound > NaOH-bound > NaHCO 3 -bound fraction. M1-P was correlated to labile (NaHCO 3 -P i ), and stable P pools (NaOH-P and HCl-P) and reflected the cumulative P accumulation in these soils. P saturation indices increased with cumulative P addition and increasing M1-P. WSP increased with increasing DPS and a change point was noticed at 23% DPS PSI (equivalent to DPS M1 of 16.5%) corresponding to M1-P of 44.5 mg P kg À1 , which could be regarded as threshold for P loss in these soils.

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“…However, few studies have discretely sampled surface-applied manure to monitor its physical and chemical transformations, especially as related to transfer of manure P to soil and runoff (Tasistro et al 2004). The objectives of this study were thus to: (i) establish small field plots where surface-applied manure and underlying soils could be discretely sampled through time, (ii) monitor physical and chemical changes in applied manure P, underlying soil, and runoff for a year or more, and (iii) relate manure P properties to P in runoff from natural rainfall.…”

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Transformations of soil and manure phosphorus after surface application of manure to field plots

Vadas

Harmel

Kleinman

2007

Nutr Cycl Agroecosyst

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Transfer of phosphorus (P) from surface-applied manures to runoff is an important source of pollution, but few studies have closely monitored P dynamics in manure, soil, and runoff through time. We monitored manure and soil P over 14 to 17 months in field experiments in Texas and Pennsylvania, USA following dairy and poultry manure surface application. Manure was applied to porous fabric that enabled discrete sampling of both manure and underlying soil. Manure mass consistently decreased while manure total P was essentially constant through time. Manure water extractable P decreased rapidly for the first two months, likely due to rainfall leaching, but then maintained stable concentrations thereafter, with other forms of manure P gradually transformed to water extractable forms. Soil P from the upper 2 cm rapidly increased after manure application in association with manure leaching by rain. After 2 to 3 months, soil P peaked and either remained constant or gradually declined. Similar trends occurred at 2-5 and 5-10 cm, but with lesser magnitudes. At 10-15 cm, soil P changed little over time. In Pennsylvania, naturally occurring runoff from 0.7-m · 1.3-m plots without and without manure was also monitored. Runoff dissolved P concentrations were greatest for the first event after manure application and decreased steadily through time, but remained greater than P concentrations from control plots, and were always well related to manure water extractable P. This study reveals that management practices for water quality protection must consider the potential for manure P transformations to contribute dissolved P to runoff long after manure is applied.

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Water soluble phosphorus released by poultry litter: effect of extraction and time after application

Cited by 17 publications

References 20 publications

Soluble Phosphorus Released by Poultry Wastes in Acidified Aqueous Extracts

Soluble Phosphorus Released by Poultry Wastes in Acidified Aqueous Extracts

An Environmental Threshold of Soil Test P and Degree of P Saturation of Brazilian Oxisols

Transformations of soil and manure phosphorus after surface application of manure to field plots

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