Interannual dynamics of available potassium in a long-term fertilization experiment
Dynamics of the plant-available potassium (K) has been studied in polyfactorial long-term fertilization experiments since 1980. The fertilization scheme includes 10 combinations of K muriate and farmyard manure application rates (annually 0-230 kg K/ha). At medium treatment (annually 153 kg K/ha), t...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2009-08-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-200908-0004_interannual-dynamics-of-available-potassium-in-a-long-term-fertilization-experiment.php |
| _version_ | 1828007591313145856 |
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| author | M. Madaras J. Lipavský |
| author_facet | M. Madaras J. Lipavský |
| author_sort | M. Madaras |
| collection | DOAJ |
| description | Dynamics of the plant-available potassium (K) has been studied in polyfactorial long-term fertilization experiments since 1980. The fertilization scheme includes 10 combinations of K muriate and farmyard manure application rates (annually 0-230 kg K/ha). At medium treatment (annually 153 kg K/ha), the K balance within an 8-year crop rotation reflected crop specific K application rates with positive annual balances in years of growing silage maize and sugar beet (high K input), and negative in two years of growing alfalfa. Available K clearly corresponded to the dynamics of the K balance, with statistically significant fluctuations from 88 to 149 mg K/kg within one crop rotation cycle. Periodic fluctuations of available K induced by crop rotation were observed also in non-fertilized treatments. The variability of available K contents was influenced primarily by crop plants and experimental unexplained factors; interannual weather fluctuations and field differences were of low significance. In the paper, the importance of interannual K dynamics for the construction of correct long-term time trends is shown and discussed. |
| first_indexed | 2024-04-10T08:12:15Z |
| format | Article |
| id | doaj.art-a653d40af7d4412cbe7e403b259c6adb |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:12:15Z |
| publishDate | 2009-08-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-a653d40af7d4412cbe7e403b259c6adb2023-02-23T03:45:31ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682009-08-0155833434310.17221/34/2009-PSEpse-200908-0004Interannual dynamics of available potassium in a long-term fertilization experimentM. Madaras0J. Lipavský1Crop Research Institute, Prague, Czech RepublicCrop Research Institute, Prague, Czech RepublicDynamics of the plant-available potassium (K) has been studied in polyfactorial long-term fertilization experiments since 1980. The fertilization scheme includes 10 combinations of K muriate and farmyard manure application rates (annually 0-230 kg K/ha). At medium treatment (annually 153 kg K/ha), the K balance within an 8-year crop rotation reflected crop specific K application rates with positive annual balances in years of growing silage maize and sugar beet (high K input), and negative in two years of growing alfalfa. Available K clearly corresponded to the dynamics of the K balance, with statistically significant fluctuations from 88 to 149 mg K/kg within one crop rotation cycle. Periodic fluctuations of available K induced by crop rotation were observed also in non-fertilized treatments. The variability of available K contents was influenced primarily by crop plants and experimental unexplained factors; interannual weather fluctuations and field differences were of low significance. In the paper, the importance of interannual K dynamics for the construction of correct long-term time trends is shown and discussed.https://pse.agriculturejournals.cz/artkey/pse-200908-0004_interannual-dynamics-of-available-potassium-in-a-long-term-fertilization-experiment.phplong-term experimentspotassiumsoilnutrient balancecrop station |
| spellingShingle | M. Madaras J. Lipavský Interannual dynamics of available potassium in a long-term fertilization experiment Plant, Soil and Environment long-term experiments potassium soil nutrient balance crop station |
| title | Interannual dynamics of available potassium in a long-term fertilization experiment |
| title_full | Interannual dynamics of available potassium in a long-term fertilization experiment |
| title_fullStr | Interannual dynamics of available potassium in a long-term fertilization experiment |
| title_full_unstemmed | Interannual dynamics of available potassium in a long-term fertilization experiment |
| title_short | Interannual dynamics of available potassium in a long-term fertilization experiment |
| title_sort | interannual dynamics of available potassium in a long term fertilization experiment |
| topic | long-term experiments potassium soil nutrient balance crop station |
| url | https://pse.agriculturejournals.cz/artkey/pse-200908-0004_interannual-dynamics-of-available-potassium-in-a-long-term-fertilization-experiment.php |
| work_keys_str_mv | AT mmadaras interannualdynamicsofavailablepotassiuminalongtermfertilizationexperiment AT jlipavsky interannualdynamicsofavailablepotassiuminalongtermfertilizationexperiment |