Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods
The aim of this study was to investigate what kind changes in the soil fertility parameters occur depending on different farming methods. The field experiment was performed on sandy loam Luvisol during 2008–2014. The following treatments were carried out: organic (ORG), organic with farmyard cattle...
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| Format: | Article |
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Taylor & Francis Group
2017-04-01
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| Series: | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
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| Online Access: | http://dx.doi.org/10.1080/09064710.2016.1242645 |
| _version_ | 1797684440648908800 |
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| author | Malle Järvan Raivo Vettik Ando Adamson |
| author_facet | Malle Järvan Raivo Vettik Ando Adamson |
| author_sort | Malle Järvan |
| collection | DOAJ |
| description | The aim of this study was to investigate what kind changes in the soil fertility parameters occur depending on different farming methods. The field experiment was performed on sandy loam Luvisol during 2008–2014. The following treatments were carried out: organic (ORG), organic with farmyard cattle manure (ORGFYM) and conventional with farmyard cattle manure and mineral fertilizers (CONFYM). Soil samples were collected yearly in September and analyzed for P, K, Mg and Ca by the Mehlich III method. In parallel, ammonium lactate extractable P and K (AL method), and ammonium acetate extractable Mg and Ca (NH4OAc-method) were determined. The Pearson correlation coefficients between the analysis results achieved by the Mehlich III method and alternative methods were calculated. In all the treatments, no significant changes in soil Corg content were established over seven years. A significant (p < .05) decrease in soil pH was shown for the CONFYM treatment. Organic management without nutrients’ input does not decrease the content of PAL in the soil but considerable decrease in the soil KAL content was revealed. The application of cattle manure (60 t ha−1 for the 5-year crop rotation) in both organic and conventional treatments sustained the status of available nutrients in the soil. The Pearson correlation coefficients between Mehlich III and AL methods for P (r = 0.770, p < .01) were lower than for K (r = 0.922, p < .01). The highest correlation between Mehlich III and NH4OAc-methods was found in the case of Mg (r = 0.951, p < .01) whereat for Ca the correlation was somewhat weaker (r = 0.841, p < .01). It was also shown that the PMehlich III/PAL quotient was inversely proportional with the CaMehlich III values. |
| first_indexed | 2024-03-12T00:30:41Z |
| format | Article |
| id | doaj.art-ebe65750503541098996feda2e778d24 |
| institution | Directory Open Access Journal |
| issn | 0906-4710 1651-1913 |
| language | English |
| last_indexed | 2024-03-12T00:30:41Z |
| publishDate | 2017-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| spelling | doaj.art-ebe65750503541098996feda2e778d242023-09-15T10:21:31ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132017-04-0167319120110.1080/09064710.2016.12426451242645Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methodsMalle Järvan0Raivo Vettik1Ando Adamson2Estonian Crop Research InstituteEstonian Crop Research InstituteEstonian Crop Research InstituteThe aim of this study was to investigate what kind changes in the soil fertility parameters occur depending on different farming methods. The field experiment was performed on sandy loam Luvisol during 2008–2014. The following treatments were carried out: organic (ORG), organic with farmyard cattle manure (ORGFYM) and conventional with farmyard cattle manure and mineral fertilizers (CONFYM). Soil samples were collected yearly in September and analyzed for P, K, Mg and Ca by the Mehlich III method. In parallel, ammonium lactate extractable P and K (AL method), and ammonium acetate extractable Mg and Ca (NH4OAc-method) were determined. The Pearson correlation coefficients between the analysis results achieved by the Mehlich III method and alternative methods were calculated. In all the treatments, no significant changes in soil Corg content were established over seven years. A significant (p < .05) decrease in soil pH was shown for the CONFYM treatment. Organic management without nutrients’ input does not decrease the content of PAL in the soil but considerable decrease in the soil KAL content was revealed. The application of cattle manure (60 t ha−1 for the 5-year crop rotation) in both organic and conventional treatments sustained the status of available nutrients in the soil. The Pearson correlation coefficients between Mehlich III and AL methods for P (r = 0.770, p < .01) were lower than for K (r = 0.922, p < .01). The highest correlation between Mehlich III and NH4OAc-methods was found in the case of Mg (r = 0.951, p < .01) whereat for Ca the correlation was somewhat weaker (r = 0.841, p < .01). It was also shown that the PMehlich III/PAL quotient was inversely proportional with the CaMehlich III values.http://dx.doi.org/10.1080/09064710.2016.1242645al methodcalciumcattle manurecrop rotationmagnesiummehlich iii methodorganic carbonphosphoruspotassium |
| spellingShingle | Malle Järvan Raivo Vettik Ando Adamson Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods Acta Agriculturae Scandinavica. Section B, Soil and Plant Science al method calcium cattle manure crop rotation magnesium mehlich iii method organic carbon phosphorus potassium |
| title | Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods |
| title_full | Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods |
| title_fullStr | Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods |
| title_full_unstemmed | Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods |
| title_short | Assessment of plant nutrients’ dynamics in organically and conventionally managed soils by means of different extraction methods |
| title_sort | assessment of plant nutrients dynamics in organically and conventionally managed soils by means of different extraction methods |
| topic | al method calcium cattle manure crop rotation magnesium mehlich iii method organic carbon phosphorus potassium |
| url | http://dx.doi.org/10.1080/09064710.2016.1242645 |
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