Micronutrient Sources, Metal Ammonium Phosphates as Fertilizers

Bridger, G. L.; Salutsky, M.L.; Starostka, R. W.

doi:10.1021/jf60121a006

Cited by 135 publications

(87 citation statements)

References 5 publications

(8 reference statements)

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“…The literature studied had three field scale experiments. These showed increases in available P after struvite application (Bridger et al, 1962;Cabeza Perez et al, 2009;DLV, 2008), but did not show differences as clearly as pot experiments. None of the studies in Table 4 indicated that struvite exceeded any regulatory limits or reduced crop growth significantly.…”

Section: P Availability To Plants and The Behavior Of Struvite In Thementioning

confidence: 90%

“…Metal contamination was investigated and posed a risk from dirty feedstock in some cases (Abma et al, 2009;Escher et al, 2006;Goto, 1998;Li & Zhao, 2003;Matsumiya et al, 2000;Schuiling & Andrade, 1999;Ueno & Fujii, 2001;Weinfurtner et al, 2009). One study investigated plant growth in pure struvite (Bridger et al, 1962) and another with very high doses (Li & Zhao, 2003), and still found no problems with plant growth! Fig.…”

Section: P Availability To Plants and The Behavior Of Struvite In Thementioning

confidence: 99%

“…Several studies also note positive effects of magnesium availability for crops. Furthermore, no study has shown negative effects from struvite application, even with seed germination in pure struvite (Bridger et al, 1962) and struvite application at extremely high doses (Li & Zhao, 2003). Thus, for plant growth, we expect further research to show that struvite can be considered a safe and effective fertilizer.…”

Section: Plant Availability Of Nutrients From Struvitesmentioning

confidence: 99%

“…Thus struvite may dissolve in a typical soil, especially in soils with low ammonia levels. Bridger et al, (1962) argues that the nitrification of ammonium often limits the dissolution of struvite. In aerobic soil, the concentration of nitrate is much higher than ammonium in solution, due to rapid conversion process from ammonia to nitrate by bacteria.…”

Section: Solubility and The Behavior Of Struvite In Soilmentioning

confidence: 99%

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Safety and Effectiveness of Struvite from Black Water and Urine as a Phosphorus Fertilizer

Gell¹,

Ruijter²,

Kuntke³

et al. 2011

JAS

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To ensure food supply, phosphorus must be recycled, for which an appealing method is using struvite fertilizer from human excreta. One struvite from black water and another from urine were assessed for safety under Dutch regulations, and for effectiveness as P fertilizer in a maize field experiment and a literature review. Both struvites contained 12% P, 12% Mg, 6% N, and 0.5-1.5% of several micronutrients. Struvites did not exceed Dutch regulations for heavy metals or pathogens, and based on literature, organic toxins should be far below regulatory limits. In this study and 18 others, struvite appears to have similar effectiveness to soluble fertilizer. Early in the season, 200 kg P 2 O 5 ha -1 of black water struvite and soluble phosphorus improved maize performance (P<0.05), however at harvest, differences in yield and biomass P content were not significant. Problems of Mg accumulation in soil can be avoided by liming and accurate fertilization. Overall, the studied struvites are safe and effective fertilizers.

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Section: P Availability To Plants and The Behavior Of Struvite In Thementioning

confidence: 90%

Section: P Availability To Plants and The Behavior Of Struvite In Thementioning

confidence: 99%

Section: Plant Availability Of Nutrients From Struvitesmentioning

confidence: 99%

Section: Solubility and The Behavior Of Struvite In Soilmentioning

confidence: 99%

See 2 more Smart Citations

Safety and Effectiveness of Struvite from Black Water and Urine as a Phosphorus Fertilizer

Gell¹,

Ruijter²,

Kuntke³

et al. 2011

JAS

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“…The good agronomic properties of struvite are known since the middle of 20 th century (Bridger et al, 1961). The use of technology to separate nutrients from wastewater, sewage sludge and its ashes and after These are some innovative strategies to improve the sustainability of P fertilisation contributing to close the cycle of P use.…”

Section: Fertilisers Manufactured From Organic Wastesmentioning

confidence: 99%

Sustainability of phosphorus fertilisation: sources and forms of phosphate

Horta¹

2015

Rev. Ciênc. Agr.

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A B S T R A C TPhosphorus (P), which originates from a non-renewable natural resource, is essential for crop productivity, food security and human health. Despite being a finite resource its use has been increasing consistently over the last few decades. The major use of the phosphate rock is the manufacture of P fertiliser, agriculture also being the main source for nonpoint source P pollution, which causes the eutrophication of water bodies. Thus, there is great need for a sustainable use of P with special attention to agricultural use, namely P fertilisation. This paper explores P sources and forms that could be phytoavailable and hence used as fertilisers. Current trends in phosphorus fertilisation are also discussed with a focus on approaches to net decrease in phosphate rock exploitation and closure of phosphorous cycle use.Keywords: eutrophication, fertilisers, phosphate rock, soil test phosphorus, struvite R E S U M OO fósforo (P) provém de um recurso natural não renovável e é indispensável para a produtividade agrícola, segurança alimentar e saúde humana. Apesar de ser um recurso finito o seu consumo tem vindo a crescer nas últimas décadas. O principal uso da rocha fosfatada é a produção de adubos fosfatados sendo também a atividade agrícola, a principal fonte de P de origem difusa que causa a eutrofização dos cursos de água. Estes factos enfatizam a necessidade do uso sustentá-vel do P com especial atenção no seu uso agrícola, em particular na fertilização fosfatada. Este artigo aborda as origens e as formas de P que podem ser fitodisponíveis e, deste modo usadas como fertilizantes. São também apresentadas as atuais tendências para uma fertilização fosfatada sustentável, com referência a algumas práticas e tecnologias para alcançar não só uma real diminuição na exploração das rochas fosfatadas, com também para fechar o ciclo de utilização do fósforo.Palavras-chave: eutrofização, fertilizantes, métodos de quantificação do fósforo, rocha fosfatada, struvite History and evolution of phosphorus fertilisationPhosphorus (P) is an essential nutrient for living beings making up about 0.2% of a plant's dry weight. P enters in the food chain taken up by plant roots from soil solution. P is a component of key molecules such as nucleic acids, phospholipids, and ATP. Therefore is a component of many cell constituents and plays a major role in several key processes, including photosynthesis, respiration, and energy storage and transfer, cell division, and cell enlargement (Marschner, 1995;Schachtman et al., 1998). In addition to other functions animals also require P for bones and teeth and derive their phosphorus needs from plant products and feed supplements. Thus, an adequate soil P level is essential not only for crop production but also for food security and human health.

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Plant Nutrition

Scherer

Mengel

Dittmar³

et al. 2002

Encyclopedia of Agrochemicals

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Fertilizers in the broadest sense are products that improve the levels of available plant nutrients and/or the chemical and physical properties of soil, thereby directly or indirectly enhancing plant growth, yield, and quality. Fertilizers are classified in terms of their chemical compounds. Straight fertilizers generally contain only one primary nutrient. Compound fertilizers contain several primary nutrients and sometimes micronutrients as well. Micronutrient fertilizers contain nutrients required in small quantities by plants, as opposed to macronutrients. They are also classified as solid or liquid fertilizers and as soil or foliar fertilizers, the latter being applied exclusively by spraying on an existing plant population.

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Micronutrient Sources, Metal Ammonium Phosphates as Fertilizers

Cited by 135 publications

References 5 publications

Safety and Effectiveness of Struvite from Black Water and Urine as a Phosphorus Fertilizer

Safety and Effectiveness of Struvite from Black Water and Urine as a Phosphorus Fertilizer

Sustainability of phosphorus fertilisation: sources and forms of phosphate

Plant Nutrition

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