A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources

A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources

Abstract An incubation study was conducted to investigate the effects of adding cow manure (CM), poultry manure (PM), city waste (CW) and triple super phosphate (TSP) on extractable P in a sandy loam acidic soil (Aquepts) and a silt loam alkaline soil (Fluvents). Phosphorus was added at a rate of 200 mg P kg−1 to the soil in the forms of CM, PM, CW and TSP. The soil was incubated at field capacity for 15, 30 and 60 days after which the P sources were extracted with Olsen, Kelowna, Mehlich-3, and Bray and Kurtz-II extractants. Regardless of the extractants and soils, after 15 days of incubation, the highest extractable P source was the TSP (88-97 mg kg-1 as Olsen P), and the lowest was the CW (11-15 mg kg-1 as Olsen P). The extractable P levels with the CM (41-48 mg kg-1 as Olsen P) and PM (71-73 mg kg-1 as Olsen P) were between the extractable P levels with the TSP and CW. Extractable P in the soils with the organic amendments increased slightly with increasing incubation time from 15 to 60 days. With the TSP, extractable P decreased sharply in the acidic soil, while it decreased gradually in the alkaline soil. In both soils, extraction efficiency was in the order of Bray and Kurtz-II> Mehlich-3> Kelowna>Olsen. The efficiency of the added P as measured by NaHCO3 increased with the organic amendments, while the efficiency decreased with the TSP with days of incubation. This study indicates that soil samples taken 30 days after the addition of CM and PM in the soil might reflect the most plant-available P.

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Auteurs principaux: Ara,Ismat, Islam,Md. Shoffikul, Kashem,Md. Abul, Osman,Khan Towhid
Format: Digital revista
Langue:English
Publié: Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Accès en ligne:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200466
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spelling oai:scielo:S0718-951620180002004662018-11-21A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sourcesAra,IsmatIslam,Md. ShoffikulKashem,Md. AbulOsman,Khan Towhid Phosphorus extractants organic amendments soils incubation Abstract An incubation study was conducted to investigate the effects of adding cow manure (CM), poultry manure (PM), city waste (CW) and triple super phosphate (TSP) on extractable P in a sandy loam acidic soil (Aquepts) and a silt loam alkaline soil (Fluvents). Phosphorus was added at a rate of 200 mg P kg−1 to the soil in the forms of CM, PM, CW and TSP. The soil was incubated at field capacity for 15, 30 and 60 days after which the P sources were extracted with Olsen, Kelowna, Mehlich-3, and Bray and Kurtz-II extractants. Regardless of the extractants and soils, after 15 days of incubation, the highest extractable P source was the TSP (88-97 mg kg-1 as Olsen P), and the lowest was the CW (11-15 mg kg-1 as Olsen P). The extractable P levels with the CM (41-48 mg kg-1 as Olsen P) and PM (71-73 mg kg-1 as Olsen P) were between the extractable P levels with the TSP and CW. Extractable P in the soils with the organic amendments increased slightly with increasing incubation time from 15 to 60 days. With the TSP, extractable P decreased sharply in the acidic soil, while it decreased gradually in the alkaline soil. In both soils, extraction efficiency was in the order of Bray and Kurtz-II> Mehlich-3> Kelowna>Olsen. The efficiency of the added P as measured by NaHCO3 increased with the organic amendments, while the efficiency decreased with the TSP with days of incubation. This study indicates that soil samples taken 30 days after the addition of CM and PM in the soil might reflect the most plant-available P.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200466en10.4067/S0718-95162018005001402
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language English
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author Ara,Ismat
Islam,Md. Shoffikul
Kashem,Md. Abul
Osman,Khan Towhid
spellingShingle Ara,Ismat
Islam,Md. Shoffikul
Kashem,Md. Abul
Osman,Khan Towhid
A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
author_facet Ara,Ismat
Islam,Md. Shoffikul
Kashem,Md. Abul
Osman,Khan Towhid
author_sort Ara,Ismat
title A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
title_short A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
title_full A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
title_fullStr A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
title_full_unstemmed A comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
title_sort comparative study of phosphorus availability in an acidic soil and an alkaline soil amended with organic and inorganic phosphorus sources
description Abstract An incubation study was conducted to investigate the effects of adding cow manure (CM), poultry manure (PM), city waste (CW) and triple super phosphate (TSP) on extractable P in a sandy loam acidic soil (Aquepts) and a silt loam alkaline soil (Fluvents). Phosphorus was added at a rate of 200 mg P kg−1 to the soil in the forms of CM, PM, CW and TSP. The soil was incubated at field capacity for 15, 30 and 60 days after which the P sources were extracted with Olsen, Kelowna, Mehlich-3, and Bray and Kurtz-II extractants. Regardless of the extractants and soils, after 15 days of incubation, the highest extractable P source was the TSP (88-97 mg kg-1 as Olsen P), and the lowest was the CW (11-15 mg kg-1 as Olsen P). The extractable P levels with the CM (41-48 mg kg-1 as Olsen P) and PM (71-73 mg kg-1 as Olsen P) were between the extractable P levels with the TSP and CW. Extractable P in the soils with the organic amendments increased slightly with increasing incubation time from 15 to 60 days. With the TSP, extractable P decreased sharply in the acidic soil, while it decreased gradually in the alkaline soil. In both soils, extraction efficiency was in the order of Bray and Kurtz-II> Mehlich-3> Kelowna>Olsen. The efficiency of the added P as measured by NaHCO3 increased with the organic amendments, while the efficiency decreased with the TSP with days of incubation. This study indicates that soil samples taken 30 days after the addition of CM and PM in the soil might reflect the most plant-available P.
publisher Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate 2018
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200466
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