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| Titel: |
A solid-phase buffer technique to maintain low concentrations of phosphate in nutrient solutions |
| Auteur: |
Elliott, George C. Carlson, Robert M. Lauchli, Andre Rosen, Carl J. |
| Verschenen in: |
Journal of plant nutrition |
| Paginering: | Jaargang 6 (1983) nr. 12 pagina's 1043-1058 |
| Jaar: |
1983-12 |
| Inhoud: |
An inexpensive and mechanically simple technique has been developed to maintain realistically low P concentrations in nutrient solutions using a solid-phase buffer. Phosphate is adsorbed on alumina in a PVC column, and the resulting alumina-F is desorbed against nutrient solution circulated through the column. Kinetics of P adsorption and desorption indicate that the solid-phase-P has rapidly and slowly desorbing components and that buffering capacity is limited by desorption from the solid phase. The technique has been used to maintain F concentrations as low as 0.4 minol m-3 for 26 days in experiments with maize (Zea mays L.), and in solution cultures with prune (Prunus domestica L.) trees. Effects of P supply on P accumulation and P transport are discussed. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 1 van 8 gevonden artikelen
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