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Details van artikel 1 van 9 gevonden artikelen
| Titel: |
Available phosphorus status of an acid soil treated with sewage sludge and farm manure |
| Auteur: |
Thangudu, Prabhakar R. Taylor, Robert W. Duseja, Desh R. |
| Verschenen in: |
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering |
| Paginering: | Jaargang 16 (1981) nr. 6 pagina's 611-621 |
| Jaar: |
1981 |
| Inhoud: |
Anaerobically digested sewage sludge at 11.2, 33.6, and 67.2 metric tons/ha and farm manure at 6.7, 20.2, and 40.4 metric tons/ ha rates were applied annually for two consecutive years to an acid Byler loam soil (Typic Fragiudalf) cropped to corn (Zea mays L.) and sorghum (Sorghum vulgare L.). A recommended NPK check was included. Available P (1% (NH4)2SO4 in 0.05N H2SO4 - extractable) levels in the soil were determined after crop harvest in the ensuing spring, each of the two years. Levels of available P in the organic amended plots did not increase significantly in the surface soil (0 to 20cm) layer the first year. Some movement of P into the subsurface soil (20 to 40cm) layer was observed, however. Significant buildup of available P due to the organic amendments was observed in the surface soil layer with little movement below 20cm during the second year. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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