Effects of zeolite and vermicompost applications on potassium release from calcareous soils
Zeolite and vermicompost applications to soil may improve K fertility of soils. For this purpose, these materials were added to five representative calcareous soils collected from southern Iran. The treatments included (1) control, (2) 20 g/kg zeolite, (3) 20 g/kg vermicompost, and (4) 20 g/kg vermi...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2014-03-01
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| Series: | Soil and Water Research |
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| Online Access: | https://swr.agriculturejournals.cz/artkey/swr-201401-0005_effects-of-zeolite-and-vermicompost-applications-on-potassium-release-from-calcareous-soils.php |
| _version_ | 1797897842815139840 |
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| author | Mahdi NAJAFI-GHIRI |
| author_facet | Mahdi NAJAFI-GHIRI |
| author_sort | Mahdi NAJAFI-GHIRI |
| collection | DOAJ |
| description | Zeolite and vermicompost applications to soil may improve K fertility of soils. For this purpose, these materials were added to five representative calcareous soils collected from southern Iran. The treatments included (1) control, (2) 20 g/kg zeolite, (3) 20 g/kg vermicompost, and (4) 20 g/kg vermicompost + zeolite (1:1). The samples were incubated for 90 days, and the concentrations of soluble, exchangeable, and non-exchangeable K and K release rate to 0.01M CaCl2 during 240 min (16 successive 15 min extractions of soil samples with CaCl2 solution) were determined. Results indicated that zeolite application increased significantly the concentration of soluble and exchangeable K. Vermicompost application had a positive effect on all forms of K. Cumulative K release was also affected by vermicompost application. Comparison of experimental data to different kinetic models indicated that Elovich, power function, and parabolic diffusion models described well kinetics of K release from all soil samples to 0.01M CaCl2. The b values of Elovich equation had significant relationships with NH4OAc- and HNO3-extractable K. It is recommended that for K fertility management of calcareous soils, organic and inorganic amendments application to soils should be taken into consideration. |
| first_indexed | 2024-04-10T08:03:41Z |
| format | Article |
| id | doaj.art-083bd9e482584b3b9245a4a513044a72 |
| institution | Directory Open Access Journal |
| issn | 1801-5395 1805-9384 |
| language | English |
| last_indexed | 2024-04-10T08:03:41Z |
| publishDate | 2014-03-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Soil and Water Research |
| spelling | doaj.art-083bd9e482584b3b9245a4a513044a722023-02-23T03:48:25ZengCzech Academy of Agricultural SciencesSoil and Water Research1801-53951805-93842014-03-0191313710.17221/72/2012-SWRswr-201401-0005Effects of zeolite and vermicompost applications on potassium release from calcareous soilsMahdi NAJAFI-GHIRI0College of Agriculture and Natural Resources, Shiraz University, Darab, IranZeolite and vermicompost applications to soil may improve K fertility of soils. For this purpose, these materials were added to five representative calcareous soils collected from southern Iran. The treatments included (1) control, (2) 20 g/kg zeolite, (3) 20 g/kg vermicompost, and (4) 20 g/kg vermicompost + zeolite (1:1). The samples were incubated for 90 days, and the concentrations of soluble, exchangeable, and non-exchangeable K and K release rate to 0.01M CaCl2 during 240 min (16 successive 15 min extractions of soil samples with CaCl2 solution) were determined. Results indicated that zeolite application increased significantly the concentration of soluble and exchangeable K. Vermicompost application had a positive effect on all forms of K. Cumulative K release was also affected by vermicompost application. Comparison of experimental data to different kinetic models indicated that Elovich, power function, and parabolic diffusion models described well kinetics of K release from all soil samples to 0.01M CaCl2. The b values of Elovich equation had significant relationships with NH4OAc- and HNO3-extractable K. It is recommended that for K fertility management of calcareous soils, organic and inorganic amendments application to soils should be taken into consideration.https://swr.agriculturejournals.cz/artkey/swr-201401-0005_effects-of-zeolite-and-vermicompost-applications-on-potassium-release-from-calcareous-soils.phpavailable kirank fertilitykinetic modelsnon-exchangeable k |
| spellingShingle | Mahdi NAJAFI-GHIRI Effects of zeolite and vermicompost applications on potassium release from calcareous soils Soil and Water Research available k iran k fertility kinetic models non-exchangeable k |
| title | Effects of zeolite and vermicompost applications on potassium release from calcareous soils |
| title_full | Effects of zeolite and vermicompost applications on potassium release from calcareous soils |
| title_fullStr | Effects of zeolite and vermicompost applications on potassium release from calcareous soils |
| title_full_unstemmed | Effects of zeolite and vermicompost applications on potassium release from calcareous soils |
| title_short | Effects of zeolite and vermicompost applications on potassium release from calcareous soils |
| title_sort | effects of zeolite and vermicompost applications on potassium release from calcareous soils |
| topic | available k iran k fertility kinetic models non-exchangeable k |
| url | https://swr.agriculturejournals.cz/artkey/swr-201401-0005_effects-of-zeolite-and-vermicompost-applications-on-potassium-release-from-calcareous-soils.php |
| work_keys_str_mv | AT mahdinajafighiri effectsofzeoliteandvermicompostapplicationsonpotassiumreleasefromcalcareoussoils |