The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils
The kinetics of potassium release may be affected by P When phosphorus (P) fertilizer is applied to soils. The objective of this study was to the effect of Ca(H2Po4)2 fertilizer on the kinetics of non-exchangeable potassium (NEK) release in 10 calcareous soils. The amount of 100 mg kg-1 of P as Ca(H...
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| Format: | Article |
| Language: | fas |
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Isfahan University of Technology
2023-12-01
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| Series: | علوم آب و خاک |
| Subjects: | |
| Online Access: | http://jstnar.iut.ac.ir/article-1-4331-en.pdf |
| _version_ | 1797229469515120640 |
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| author | A.R. Hossienpur M. Barati M.H. Salehi |
| author_facet | A.R. Hossienpur M. Barati M.H. Salehi |
| author_sort | A.R. Hossienpur |
| collection | DOAJ |
| description | The kinetics of potassium release may be affected by P When phosphorus (P) fertilizer is applied to soils. The objective of this study was to the effect of Ca(H2Po4)2 fertilizer on the kinetics of non-exchangeable potassium (NEK) release in 10 calcareous soils. The amount of 100 mg kg-1 of P as Ca(H2Po4)2 was added to the soils. Treated and untreated soils were incubated at 70% of field capacity and 25±1°C for 90 days. After that, the NEK release was studied by 0.01 M CaCl2 extractant in 2017 hours by successive extraction methods in the treated and untreated soils. The results showed the NEK released in treated soils less than in untreated soils. The mean cumulative NEK released after 2017 h in the treated and untreated soils was 260.6 and 303.3 mg kg-1, respectively. The release of NEK in all soils was fast in the initial stages and continued at a lower speed in the later stages until the end of the experiment. The kinetics of NEK release was evaluated using kinetic equations. Based on the highest coefficients of determination (R2) and the lowest standard error (SE), the kinetics of NEK release in treated and untreated soils were described by the power function equation. The results of this research could be helpful for the precise fertilizer recommendation for the study in calcareous soils. |
| first_indexed | 2024-04-24T15:13:05Z |
| format | Article |
| id | doaj.art-b53f89e20f1546cdad40cd4a4047ce5b |
| institution | Directory Open Access Journal |
| issn | 2476-3594 2476-5554 |
| language | fas |
| last_indexed | 2024-04-24T15:13:05Z |
| publishDate | 2023-12-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | علوم آب و خاک |
| spelling | doaj.art-b53f89e20f1546cdad40cd4a4047ce5b2024-04-02T10:06:11ZfasIsfahan University of Technologyعلوم آب و خاک2476-35942476-55542023-12-01274235245The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous SoilsA.R. Hossienpur0M. Barati1M.H. Salehi2 Shahrekord of Uneversity Shahrekord of Uneversity Shahrekord of Uneversity The kinetics of potassium release may be affected by P When phosphorus (P) fertilizer is applied to soils. The objective of this study was to the effect of Ca(H2Po4)2 fertilizer on the kinetics of non-exchangeable potassium (NEK) release in 10 calcareous soils. The amount of 100 mg kg-1 of P as Ca(H2Po4)2 was added to the soils. Treated and untreated soils were incubated at 70% of field capacity and 25±1°C for 90 days. After that, the NEK release was studied by 0.01 M CaCl2 extractant in 2017 hours by successive extraction methods in the treated and untreated soils. The results showed the NEK released in treated soils less than in untreated soils. The mean cumulative NEK released after 2017 h in the treated and untreated soils was 260.6 and 303.3 mg kg-1, respectively. The release of NEK in all soils was fast in the initial stages and continued at a lower speed in the later stages until the end of the experiment. The kinetics of NEK release was evaluated using kinetic equations. Based on the highest coefficients of determination (R2) and the lowest standard error (SE), the kinetics of NEK release in treated and untreated soils were described by the power function equation. The results of this research could be helpful for the precise fertilizer recommendation for the study in calcareous soils.http://jstnar.iut.ac.ir/article-1-4331-en.pdfreleasemono-calcium phosphatenon-exchange potassium |
| spellingShingle | A.R. Hossienpur M. Barati M.H. Salehi The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils علوم آب و خاک release mono-calcium phosphate non-exchange potassium |
| title | The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils |
| title_full | The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils |
| title_fullStr | The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils |
| title_full_unstemmed | The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils |
| title_short | The Effect of Superphosphate Fertilizer Application on the Kinetics of Non-Exchangeable Potassium Release in Some Calcareous Soils |
| title_sort | effect of superphosphate fertilizer application on the kinetics of non exchangeable potassium release in some calcareous soils |
| topic | release mono-calcium phosphate non-exchange potassium |
| url | http://jstnar.iut.ac.ir/article-1-4331-en.pdf |
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