Phosphorus Restrictions for Land Application of Biosolids

Shober, Amy L.; Sims, J. T.

doi:10.2134/jeq2003.1955

Cited by 86 publications

(55 citation statements)

References 38 publications

(48 reference statements)

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“…While acknowledging that P fertilization in soils with satisfactory P status (Olsen P ≥ 25 mg L -1 or ≥ Index 3) may be omitted in some years (Shober and Sims, 2003;DEFRA, 2010;Poulton et al, 2013), soil application of OMF in these circumstances may be still technically viable provided crop P requirements over the rotation cycle are not exceeded. The OMF 15 formulation is more suitable than OMF 10 for high P Index soil because of relatively wider N/P ratio.…”

Section: Fertilizer Application Effects On Soilmentioning

confidence: 99%

Field‐Scale Evaluation of Biosolids‐Derived Organomineral Fertilizers Applied to Winter Wheat in England

et al. 2017

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Field-scale experiments in four crop seasons established the agronomic performance of biosolids-derived organomineral fertilizers (OMF) for winter wheat (Triticum aestivum L.) production in England. Two OMF formulations (OMF 10 10:4:4 and OMF 15 15:4:4) were compared with urea and biosolids granules (≈5:6:0.2) to determine crop responses and fertilizer eff ects on soil chemical properties. Fertilizers were applied at N rates between 0 and 250 kg ha -1 at regular increments of 50 kg ha -1 N. Average grain yields with OMF 10 and OMF 15 were higher than with biosolids granules, but lower than with urea (P < 0.05). Th e optimum N application rates, and corresponding grain yields, were 245 and 7900 kg ha -1 for biosolids, 257 and 9100 kg ha -1 for OMF 10 , 249 and 9500 kg ha -1 for OMF 15 , and 225 and 10350 kg ha -1 for urea, respectively. Diff erences in grain yield between fertilizer treatments were explained by diff erences in yield components, particularly number of grains and thousand-grain-weight. Grain-N recoveries were 31% for biosolids, ≈40% for OMF, and 52% for urea. Organomineral fertilizers-induced changes in soil extractable P and soil P Index were not signifi cant. Th us, application of OMF replenished P offt ake by the crop and therefore supported the choice of the proposed OMF formulations. By contrast, extractable P increased in biosolids and decreased in urea-treated soils, respectively. Heavy metals in soil were unaff ected by fertilizer treatment and lower than permissible limit values. Th e use of OMF for winter wheat production appears to be a sustainable approach to recycling biosolids to land.

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Section: Fertilizer Application Effects On Soilmentioning

confidence: 99%

Field‐Scale Evaluation of Biosolids‐Derived Organomineral Fertilizers Applied to Winter Wheat in England

et al. 2017

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“…Biosolids P applications are not regulated by the USEPA, but increasing numbers of states are introducing regulations, because of concerns about the effects of repeated manure or biosolids applications on soil P and risk of P loss to surface water. Shober and Sims (2003) have recommended a national biosolids P risk assessment be conducted to develop scientifically based national standards for P management.…”

Section: Mots Clésmentioning

confidence: 99%

Biosolids recycling: Nitrogen management and soil ecology

Cogger¹,

Forge²,

Neilsen³

2006

Can. J. Soil. Sci.

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Cogger, C. G., Forge, T. A. and Neilsen, G. H. 2006. Biosolids recycling: Nitrogen management and soil ecology. Can. J. Soil Sci. 86: 613-620. Biosolids are municipal wastewater treatment solids that meet regulatory standards for land application. Most biosolids are a rich source of N, P, and micronutrients. Although the use of biosolids on food crops remains controversial in the public eye, decades of research have led to the development of regulations for the safe and beneficial use of biosolids in agriculture. Emerging areas of research include biosolids in commercial and home horticulture, the fate of pathogens and organics in biosolids, the use of biosolids in the remediation of contaminated sites, and biosolids effects on soil ecology. Nutrient management remains the most critical day-to-day issue for land application of biosolids. Recent research on plant-available nitrogen (PAN) in biosolids has found that N availability is similar over a range of biosolids processing types, and that growing-season climate is a key factor affecting available N. Regionally based predictions of PAN have been developed for the United States, and could be extended into Canada. Relatively little is known about the effects of biosolids applications on soil ecology, but soil nematodes offer an opportunity to evaluate the structure and function of the soil ecosystem following biosolids applications. We have studied responses of nematode communities to application of municipal biosolids and composts, in forage production systems and orchards. Both types of amendments increased the abundance of enrichment opportunists, for up to 3 yr after single applications. These data on the persistence of increased enrichment opportunists have provided insight into the longevity of amendment-induced enhancement of biological activity and nutrient cycling. Cumulative biosolids applications of 90 Mg ha -1 have caused reductions in abundance of pollutant-sensitive Dorylaimida. The extent to which this change is the result of metal or nutrient loading is unclear and deserves more detailed study. On appelle « biosolides » les solides résultant de l'épuration des eaux usées par les municipalités et respectant les normes réglementaires en vue de leur application sur les terres. La plupart des biosolides sont riches en N, en P et en oligoélé-ments. Bien que la fertilisation des cultures vivrières par les biosolides continue de soulever la controverse au sein de la population, des dizaines d'années de recherche ont abouti à l'élaboration de règlements qui rendent cet usage aussi inoffensif que bénéfique. Parmi les nouveaux sujets de recherche, il faut mentionner l'usage des biosolides en horticulture commerciale et domestique, le sort des microorganismes pathogènes et de la matière organique dans les biosolides, la restauration des sites contaminés au moyen des biosolides et l'incidence des biosolides sur l'écologie du sol. La gestion des éléments nutritifs demeure la principale difficulté quotidienne liée à l'application des biosolides sur les terres....

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“…Because P accumulation in soils can also result from the application of biosolids, animal manures, and man-made fertilizers, this research has significant implications in identifying the fields with high concentrations of surface soil P, thus helping implementation of P-based management practices on agricultural fields, with an aim toward reduction of P runoff into nearby surface water bodies. Shober and Sims (2003) reported that twenty-four of the states and territories in the United States now have regulations to restrict the land application of biosolids, based on phosphorus concentration in soil. Thirteen of these 24 states have established actual numerical limits for soil test phosphorus (STP), with an aim to cease the application of biosolids once these limits are reached.…”

Section: Discussionmentioning

confidence: 99%