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Details van artikel 2 van 10 gevonden artikelen
| Titel: |
Effect of Phosphorus Fertilization and Content of Plant-available Phosphorus (P-AL) on Algal-available Phosphorus in Soils |
| Auteur: |
Øgaard, Anne Falk |
| Verschenen in: |
Acta agriculturae Scandinavica. Section B, Soil and plant science |
| Paginering: | Jaargang 45 (1995) nr. 4 pagina's 242-250 |
| Jaar: |
1995-12-01 |
| Inhoud: |
The fate of excess fertilizer P was studied using a sequential P extraction procedure of soil samples from two, PK fertilization field trials in southeastern Norway. At both sites there was an increase in the resin-P and NaHCO3-Pi (Pi = inorganic P) fractions with increasing P additions; both of these fractions were closely correlated to algal-available P (measured as total reactive P, TRP). Further, in a study of 17 soil samples it was found that TRP was positively correlated to inorganic P and plant-available P (P-AL). P-AL explained 83% of the variation in TRP. The quantity of particulate P that was soluble in a soil suspension increased considerably when the solution:soil ratio was increased from 2:1 to 2000:1. The “equilibrium” level of P in the solutions increased with increasing level of P-AL in the soil. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 10 gevonden artikelen
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