Phosphorus immobilization in wood waste‐based potting media
Autor: | Kevin A. Handreck |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Communications in Soil Science and Plant Analysis. 27:2295-2314 |
ISSN: | 1532-2416 0010-3624 |
DOI: | 10.1080/00103629609369704 |
Popis: | Microbially induced nitrogen (N) immobilisation in potting media is accompanied by immobilisation of soluble phosphorus (P), with the P/N ratio of the immobilised elements being about 0.15. Fertiliser N applied to counter N immobilisation should be accompanied by this amount of soluble P if plants are not to suffer from P deficiency. Essentially none of the immobilised P in potting media that contained aged pine bark or eucalypt sawdust was available for short‐term growth of ‘Giant Butterfly’ pansies or Hakea francisiana subsequently grown in them. One implication of these results is that the N drawdown test for potting media will underestimate N requirements if P is not included in the charging solution. |
Databáze: | OpenAIRE |
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