Possible use of struvite as an alternative phosphate fertilizer

Struvite, from human urine, is an alternative phosphorus (P) fertilizer. This study evaluated P release from struvite and its effectiveness for maize in Inanda (Ia), Sepane (Se) and Cartref (Cf) soils. Phosphorus sorption isotherms were determined, an incubation study determined the release pattern...

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Autores principales:	Nongqwenga,N, Muchaonyerwa,P., Hughes,J, Odindo,A, Bame,I
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2017
Materias:	Phosphorus-sorption struvite urine phosphate fertilizer
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300003
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spelling	oai:scielo:S0718-951620170003000032017-10-13Possible use of struvite as an alternative phosphate fertilizerNongqwenga,NMuchaonyerwa,P.Hughes,JOdindo,ABame,I Phosphorus-sorption struvite urine phosphate fertilizer Struvite, from human urine, is an alternative phosphorus (P) fertilizer. This study evaluated P release from struvite and its effectiveness for maize in Inanda (Ia), Sepane (Se) and Cartref (Cf) soils. Phosphorus sorption isotherms were determined, an incubation study determined the release pattern of P from struvite, and a pot trial compared struvite with single superphosphate (SSP) on maize P uptake. The amount of P at equilibrium (where Q = 0) in the Cf was 1.39 mg L-1, followed by Ia and Se with values of 0.17 and 0.13 mg L-1, respectively. Buffer coefficients were in the order Ia > Se > Cf with values of 454, 71 and 50 mg kg-1/mg L-1, respectively. The extractable P in all three soils increased with time, with evidence of declining P release after Day 8. Struvite was most effective as a P source in the Cf followed by Se and Ia. Compared to SSP, there was significant improvement in maize grown on the Cf, while the reverse occurred in the Se. Maize grown in the Ia did not respond to either struvite or SSP. It was concluded that the phosphorus sorption was the main limiting factor that governed struvite effectiveness as a P source.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.17 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300003en10.4067/S0718-95162017000300003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Phosphorus-sorption struvite urine phosphate fertilizer
spellingShingle	Phosphorus-sorption struvite urine phosphate fertilizer Nongqwenga,N Muchaonyerwa,P. Hughes,J Odindo,A Bame,I Possible use of struvite as an alternative phosphate fertilizer
description	Struvite, from human urine, is an alternative phosphorus (P) fertilizer. This study evaluated P release from struvite and its effectiveness for maize in Inanda (Ia), Sepane (Se) and Cartref (Cf) soils. Phosphorus sorption isotherms were determined, an incubation study determined the release pattern of P from struvite, and a pot trial compared struvite with single superphosphate (SSP) on maize P uptake. The amount of P at equilibrium (where Q = 0) in the Cf was 1.39 mg L-1, followed by Ia and Se with values of 0.17 and 0.13 mg L-1, respectively. Buffer coefficients were in the order Ia > Se > Cf with values of 454, 71 and 50 mg kg-1/mg L-1, respectively. The extractable P in all three soils increased with time, with evidence of declining P release after Day 8. Struvite was most effective as a P source in the Cf followed by Se and Ia. Compared to SSP, there was significant improvement in maize grown on the Cf, while the reverse occurred in the Se. Maize grown in the Ia did not respond to either struvite or SSP. It was concluded that the phosphorus sorption was the main limiting factor that governed struvite effectiveness as a P source.
author	Nongqwenga,N Muchaonyerwa,P. Hughes,J Odindo,A Bame,I
author_facet	Nongqwenga,N Muchaonyerwa,P. Hughes,J Odindo,A Bame,I
author_sort	Nongqwenga,N
title	Possible use of struvite as an alternative phosphate fertilizer
title_short	Possible use of struvite as an alternative phosphate fertilizer
title_full	Possible use of struvite as an alternative phosphate fertilizer
title_fullStr	Possible use of struvite as an alternative phosphate fertilizer
title_full_unstemmed	Possible use of struvite as an alternative phosphate fertilizer
title_sort	possible use of struvite as an alternative phosphate fertilizer
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300003
work_keys_str_mv	AT nongqwengan possibleuseofstruviteasanalternativephosphatefertilizer AT muchaonyerwap possibleuseofstruviteasanalternativephosphatefertilizer AT hughesj possibleuseofstruviteasanalternativephosphatefertilizer AT odindoa possibleuseofstruviteasanalternativephosphatefertilizer AT bamei possibleuseofstruviteasanalternativephosphatefertilizer
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Possible use of struvite as an alternative phosphate fertilizer

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