PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION
The effect of silicon (Si) on phosphorus (P) availability in calcareous soil was studied in an incubation experiment carried out at the Collage of Agriculture, University of Basrah. Treatments were designed according to the following variables: Si levels (0, 100, 200, 300 kg Si ha-1); P levels (0, 1...
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University of Anbar
2025-06-01
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| Series: | مجلة الأنبار للعلوم الزراعية |
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| Online Access: | https://ajas.uoanbar.edu.iq/article_186567_e6b807d36d6a4d20ab5e7e082ab934e9.pdf |
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| author | J. A. J. Al-rubaie M. A. Abdulkareem |
| author_facet | J. A. J. Al-rubaie M. A. Abdulkareem |
| author_sort | J. A. J. Al-rubaie |
| collection | DOAJ |
| description | The effect of silicon (Si) on phosphorus (P) availability in calcareous soil was studied in an incubation experiment carried out at the Collage of Agriculture, University of Basrah. Treatments were designed according to the following variables: Si levels (0, 100, 200, 300 kg Si ha-1); P levels (0, 12.5, 25, 50 kg P ha-1) and P sources (diammonium phosphate, DAP, and concentrated superphosphate, CSP). Calcium (Ca⁺⁺) in soil solutions, available P and Si were determined at 7, 14 and 30-day incubation periods. The source of Si was K₂SiO₃. Soluble Ca⁺⁺ declined with increasing Si dosages up to 200 kg Si ha-1, then increased at 300 kg Si ha-1. On the other hand, available values of P and Si in soil significantly increased with higher Si dosages till 200 kg Si ha-1 then declined at 300 kg Si ha-1. The mean values of available P at 200 kg Si ha-1 were 67.05, 160.60 and 79.47 mg kg -1 soil for 7, 14 and 30 days of incubation. The effect of P levels, Ca⁺⁺ in soil solutions, available P and Si increased at higher P levels. Data revealed that soil treated with DAP has larger available P over that with CSP, while Ca⁺⁺ in soil solution and available Si are not affected by P source. This suggests that appropriate Si application (100 and 200 kg Si ha-1) could significantly increase P levels in calcareous soils |
| format | Article |
| id | doaj-art-ecb60b14f6484540850480997b01c777 |
| institution | Kabale University |
| issn | 1992-7479 2617-6211 |
| language | Arabic |
| publishDate | 2025-06-01 |
| publisher | University of Anbar |
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| series | مجلة الأنبار للعلوم الزراعية |
| spelling | doaj-art-ecb60b14f6484540850480997b01c7772025-08-20T03:33:34ZaraUniversity of Anbarمجلة الأنبار للعلوم الزراعية1992-74792617-62112025-06-012319310610.32649/ajas.2025.186567186567PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATIONJ. A. J. Al-rubaie0M. A. Abdulkareem1Department of Soil Sciences and Water Resources, College of Agriculture, University of Basrah, Basrah, IraqDepartment of Soil Sciences and Water Resources, College of Agriculture, University of Basrah, Basrah, IraqThe effect of silicon (Si) on phosphorus (P) availability in calcareous soil was studied in an incubation experiment carried out at the Collage of Agriculture, University of Basrah. Treatments were designed according to the following variables: Si levels (0, 100, 200, 300 kg Si ha-1); P levels (0, 12.5, 25, 50 kg P ha-1) and P sources (diammonium phosphate, DAP, and concentrated superphosphate, CSP). Calcium (Ca⁺⁺) in soil solutions, available P and Si were determined at 7, 14 and 30-day incubation periods. The source of Si was K₂SiO₃. Soluble Ca⁺⁺ declined with increasing Si dosages up to 200 kg Si ha-1, then increased at 300 kg Si ha-1. On the other hand, available values of P and Si in soil significantly increased with higher Si dosages till 200 kg Si ha-1 then declined at 300 kg Si ha-1. The mean values of available P at 200 kg Si ha-1 were 67.05, 160.60 and 79.47 mg kg -1 soil for 7, 14 and 30 days of incubation. The effect of P levels, Ca⁺⁺ in soil solutions, available P and Si increased at higher P levels. Data revealed that soil treated with DAP has larger available P over that with CSP, while Ca⁺⁺ in soil solution and available Si are not affected by P source. This suggests that appropriate Si application (100 and 200 kg Si ha-1) could significantly increase P levels in calcareous soilshttps://ajas.uoanbar.edu.iq/article_186567_e6b807d36d6a4d20ab5e7e082ab934e9.pdfavailable sisoluble cadapcalcareous soil |
| spellingShingle | J. A. J. Al-rubaie M. A. Abdulkareem PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION مجلة الأنبار للعلوم الزراعية available si soluble ca dap calcareous soil |
| title | PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION |
| title_full | PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION |
| title_fullStr | PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION |
| title_full_unstemmed | PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION |
| title_short | PHOSPHORUS AVAILABILITY FROM DIFFERENT FERTILIZERS IN RESPONSE TO SILICON APPLICATION |
| title_sort | phosphorus availability from different fertilizers in response to silicon application |
| topic | available si soluble ca dap calcareous soil |
| url | https://ajas.uoanbar.edu.iq/article_186567_e6b807d36d6a4d20ab5e7e082ab934e9.pdf |
| work_keys_str_mv | AT jajalrubaie phosphorusavailabilityfromdifferentfertilizersinresponsetosiliconapplication AT maabdulkareem phosphorusavailabilityfromdifferentfertilizersinresponsetosiliconapplication |