Nitrogen and potassium leaching from grassland
Kayser, Manfred
Produktnummer:
1888759f3dccb24b698aebc5ce1c612c90
| Autor: | Kayser, Manfred |
|---|---|
| Themengebiete: | Fertilizer Geowissenschaften, Geographie, Umwelt, Planung Landwirtschaft, Veterinärmedizin Leaching Nitrogen Potassium Urine grassland |
| Veröffentlichungsdatum: | 19.12.2003 |
| EAN: | 9783937069043 |
| Auflage: | 1 |
| Sprache: | Deutsch Englisch |
| Seitenzahl: | 138 |
| Produktart: | Kartoniert / Broschiert |
| Verlag: | Wright, Michael |
| Untertitel: | The effect of fertilizer regime and application of cattle urine |
Produktinformationen "Nitrogen and potassium leaching from grassland"
In the first part of this work the effects of four fertilizer regimes on the dynamics of N and K on mown grassland on a sandy soil were investigated. The swards differed in the source of N input and related K fertilization. After six years, the swards showed distinctive features in terms of nutrient balances and leaching, nutrient contents in the soil, and botanical composition. These swards then formed the basis of a mini-lysimeter study of the fate of mainly N and K at urine patches on grazed grassland, which makes up part two and three of this work. Late urine applications led to increased N leaching losses and losses were higher from poor swards and productive grass-clover swards compared to grassland that received mineral fertilizer. Macropore flow played a role during summer for N and K leaching. High plant uptake and retention in the soil alleviated leaching losses of K, while leaching of Ca and Mg was substantially increased.
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