Effect of serpentine rock and its acidulated products as magnesium fertilisers for pasture, compared with magnesium oxide and Epsom salts, on a Pumice Soil. 2. Dissolution and estimated leaching loss of fertiliser magnesium
| Autor: | Paripurnanda Loganathan, J. A. Hanly, L. D. Currie |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
geography
geography.geographical_feature_category Soil test Chemistry Magnesium Inorganic chemistry Soil Science chemistry.chemical_element Plant Science Pasture chemistry.chemical_compound Animal science Pumice Animal Science and Zoology Leaching (agriculture) Solubility Citric acid Agronomy and Crop Science Dissolution |
| Zdroj: | New Zealand Journal of Agricultural Research. 48:461-471 |
| ISSN: | 1175-8775 0028-8233 |
| DOI: | 10.1080/00288233.2005.9513680 |
| Popis: | The dissolution rate of magnesium (Mg) fertilisers controls their effectiveness in supplying Mg to plants and the potential for fertiliser‐Mg to be lost via leaching. Results from a field trial, conducted on pasture on an Immature Orthic Pumice Soil (pHwater 6.3) treated with different types of Mg fertilisers (100 kg Mg ha–1), showed that Mg dissolution over a 29‐month period differed, being 15–20% for serpentine rock products, 50–98% for acidulated serpentine products, 95% for E‐mag (magnesium oxide), and 98% for Epsom salts. The percentage dissolution of applied fertiliser‐Mg was related to the water solubilities for all the fertilisers except E‐mag, which had a high dissolution rate in soil but a very low solubility in water. However, E‐mag had high Mg solubility in citric acid, consistent with its dissolution rate in soil. Epsom salts, E‐mag, and acidulated serpentine products significantly increased exchangeable Mg in soil samples collected 9 and 29 months after fertiliser application, where... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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