Geostatistical assessment of the regional distribution of phosphate sorption capacity parameters (FeOX and AlOX) in northern Belgium

Lookman, Richard; Vandeweert, Nadia; Merckx, Roel; Vlassak, K.

doi:10.1016/0016-7061(94)00084-n

Cited by 70 publications

(50 citation statements)

References 11 publications

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“…Pox and oxalate-soluble Al and Fe content in soil (Alox, Feox) were analysed by shaking 2 g of soil in acid oxalate solution (100 ml) for 1 h in the dark. Lookman et al (1995) and Schoumans (2000). Total P (Pt) was analysed after aqua regia dissolution in a microwave oven (Mars Xpress, CEM GmbH, Kamp-Lintfort, Germany) followed by ICP spectroscopy.…”

Section: Analysesmentioning

confidence: 99%

Biomass ashes and their phosphorus fertilizing effect on different crops

Schiemenz

Eichler‐Löbermann

2010

Nutr Cycl Agroecosyst

107

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The reutilization of biomass ashes in agriculture is an important issue to create nutrient cycles and to save fertilizer. To analyse the P fertilization effect of crop biomass ashes (rape meal ash (RMA), straw ash (SA), and cereal ash (CA)) in interaction with different crops, two pot experiments with a poor loamy sand deficient in P were carried out. Besides the three ash treatments, other treatments included triple superphosphate (TSP) as a high soluble P source, potassium chloride (KCl) as a high soluble K source, and a control (CON) without P and K. The main crops (maize, lupin, summer barley, and oilseed rape) were cultivated in the first experiment from April to May and the catch crops (oil radish, phacelia, italian ryegrass, and buckwheat) were cultivated in the second experiment from August to September. Plant parameters (biomass and P uptake of shoots), soil pH, different P pools of the soil (total P (Pt), water soluble P (Pw), double lactate soluble P (Pdl), oxalate soluble P (Pox)), P sorption capacity (PSC), and the degree of P saturation (DPS) were investigated. The fertilization effect of biomass ashes was comparable with that of TSP. On average of all crops, the highest P uptake (86.7 mg pot -1 ) was found after RMA application, and the lowest P uptake (66.6 mg pot -1 ) for CON. The readily bio-available soil P contents (Pw and Pdl) were significantly increased when P was supplied, regardless of whether P was given with ash or with high soluble TSP. The P fertilization effects also depended on the cultivated crops. The ash treatments resulted in highest increases of soil Pw values when combined with buckwheat cultivation. After buckwheat harvest the Pw content in the control was 8.0 mg kg -1 , and in the ash treatments between 13.9 mg kg -1 (CA) and 15.7 mg kg -1 (RMA). From the results of this study we conclude, that crop biomass ashes can be an adequate P source comparable to that of highly soluble commercial P fertilizer.

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Section: Analysesmentioning

confidence: 99%

Biomass ashes and their phosphorus fertilizing effect on different crops

Schiemenz

Eichler‐Löbermann

2010

Nutr Cycl Agroecosyst

107

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“…Pox and the oxalate-soluble aluminium and iron contents (Alox, Feox) in soil were extracted and their concentrations were determined by inductively coupled plasma optical emission spectroscopy (ICP-OES; JY 238, Jobin Yvon, France). With use of these data, the P-sorption capacity [PSC (mmol kg À1 ) ¼ (Alox + Feox)/2] and the degree of P saturation [DPS (%) ¼ Pox/ PSC Â 100] could be calculated according to Lookman et al (1995) and Schoumans (2000). Total P was analysed after aqua regia dissolution in a microwave oven (Mars Xpress, CEM, Kamp-Lintfort, Germany) followed by ICP-OES.…”

Section: Analysesmentioning

confidence: 99%

Phosphorus Fertilizing Effects of Biomass Ashes

Schiemenz

Kern

Paulsen³

et al. 2011

Recycling of Biomass Ashes

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The reutilization of biomass ashes in agriculture is important to create nutrient cycles. In field and pot experiments we investigated the fertilizing effects of different biomass ashes (rape meal ash, straw ash, and cereal ash) for eight different crops on a loamy sand and a sandy loam. Special emphasis was given to phosphorus (P). The ashes showed large differences in their elemental composition. The highest P contents (10.5%) were measured in the cereal ash, and lowest in straw ash (1% P). The solubility of P in water was low; however, about 80% of P was soluble in citric acid. Generally, the P fertilizing effect of ashes was comparable to that of highly soluble P fertilizers such as triple superphosphate. The ash supply resulted in an increase of P uptake of cultivated crops as well as in increased soil P pools (total P, water-soluble P, double-lactate-soluble P, oxalate-soluble P) and P saturation. The ash effects depended also on the cultivated crop. Good results were found in combination with phacelia, buckwheat, and maize. Provided that biomass ashes are low in heavy metals and other toxic substances, the ashes can be applied in agriculture as a valuable fertilizer.

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“…At this level, significant increase (Canada) of the EPC o x values above the water quality standard of 0.1 mg L -1 (s = 17; n = 35) w Sharpley (1996) Acidic to neutral, sandy to clay strip-P/X m Linear relationship between cumulative strip-P released loams, Texas and Oklahoma (USA) and the saturation index (s = 17; n = 23) Kuo et al (1988) Acidic, < 34% clay, Washington P extracted/X m Strong linear relationship (s = 7; n = 27) between the State, (USA) index and the P concentrations extracted with three different extractants (Olsen, Bray-1, Morgan) De Smet et al (1996a,b) Acidic to slightly alkaline, sandy P ox /0.5 (Al ox + Fe ox ) Critical limit used for the index = 30% (considering loam, Belgium field heterogeneity and water quality standard of 0.1 mg L -1 ) Lookman et al (1995a; Acidic, sands to sandy loams, P ox /0.5 (Al ox + Fe ox ) Linear relationship between the P saturation index and Belgium labile P concentrations measured in 100 mM KCl (field scale level) Leinweber et al (1997) pH not specified, mean clay P ox /0.5 (Al ox + Fe ox ) Critical limit used = 30%. Significant correlation content for the two catchments:…”

Section: M3p/x M M3p/alm3mentioning

confidence: 99%

“…As said earlier, the total P sorption maximum of acidic soils is related to α m (Al ox + Fe ox ) contents. According to Lookman et al (1995a), α m represents the fraction of the solid phase reacting sites, expressed as Al ox +Fe ox content, that is available to sorb P or the "nonoccluded" reactive portion of the matrix in contact with soil solution. Freese et al (1995) found α m = 0.48 for 17 German agricultural soils.…”

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confidence: 99%

Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

Beauchemin¹,

Simard²

1999

Can. J. Soil. Sci.

146

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Beauchemin, S. and Simard, R. R. 1999. Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada. Can. J. Soil Sci. 79: 615-625. Many agricultural fields contain excessive labile soil P in regard to crop needs. Its environmental fate must be assessed. The concept of P saturation degree is meaningful as it describes the portion of the soil binding sites already covered with P, and indicates the potential desorbability of soil P. The first objective of this study was to review different indices that have been proposed to estimate the degree of soil P saturation and the relationships between soil P saturation degree and P solubility. The second objective is to discuss their suitability as environmental indicators for P management in the province of Québec, Canada. In the Netherlands, the P saturation index is defined as the ratio of P to Al + Fe contents extracted by ammonium oxalate [P ox /(Al ox + Fe ox ) or (P ox /0.5(Al ox + Fe ox )]. This approach has been mainly used with non-calcareous soils. In Québec, the ratio of Mehlich-III extractable P to Al (M3P/AlM3) is proposed as an alternative, which relies on routine laboratory test. However, the suitability of the M3P/AlM3 ratio has yet to be determined for some specific soil groups (e.g. gleyed soils, soils with Al ox content >6 g kg -1 ) and for subsoil horizons. Regardless of the chosen index, it is suggested that the best way to manage the risk of water contamination by P in Québec (namely, defining critical levels of soil P saturation) may be to form homogeneous soil groups to account for their distinctive behaviour and characteristics.Key words: Phosphorus, saturation, management Beauchemin, S. et Simard, R. R. 1999. Degré de saturation en P du sol: revue de quelques indices et de leur utilité pour la gestion du P au Québec, Canada. Can. J. Soil Sci. 79: 615-625. Plusieurs sols agricoles présentent des teneurs excessives en P labile comparées aux besoins des cultures. Le devenir environnemental de ce P doit être évalué. La notion de degré de saturation en P d'un sol est particulièrement intéressante parce qu'elle donne une mesure de la proportion des sites de sorption déjà occupés par le P tout en indiquant le potentiel de désorption du P. Le premier objectif de cette étude est de revoir différents indices qui ont été proposés pour estimer le degré de saturation en P du sol et la fiabilité de ces indices à prédire la solubilité du P dans différents types de sol. Le deuxième objectif est de faire ressortir certains aspects à considérer pour favoriser pleinement leur utilisation comme indicateurs environnementaux dans la gestion du P pour la province de Québec, Canada. En Hollande, l'index de saturation en P est défini par le rapport entre le contenu en P et celui en Fe et Al extraits par l'oxalate d'ammonium [P ox /(Al ox + Fe ox ) ou (P ox /0.5(Al ox + Fe ox )]. Ces indices ont été étudiés principalement sur des sols non calcaires. Au Québec, le rapport entre le contenu en P et celui en Al extrait au...

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Geostatistical assessment of the regional distribution of phosphate sorption capacity parameters (FeOX and AlOX) in northern Belgium

Cited by 70 publications

References 11 publications

Biomass ashes and their phosphorus fertilizing effect on different crops

Biomass ashes and their phosphorus fertilizing effect on different crops

Phosphorus Fertilizing Effects of Biomass Ashes

Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

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