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Details van artikel 18 van 26 gevonden artikelen
| Titel: |
Potential for leaching of potassium and phosphorus from pine and grass roots |
| Auteur: |
Comerford, N. B. Smethurst, P. I. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 24 (1993) nr. 13-14 pagina's 1577-1581 |
| Jaar: |
1993-08 |
| Inhoud: |
Nutrient analysis of roots recovered by wet sieving may be biased by leaching which occurs during sampling. The objective of this experiment was to determine the potential for leaching of potassium (K) and phosphorus (P) from roots of slash pine (Pinus elliottii Engelm. var elliottii) and Panicum aciculare grass seedlings. Roots of both species were sampled by wet and dry methods. The wet method included soaking for 15 d in deionizd water. All samples were dried prior to measuring their contents of sand, K and P. The amount of sand retained by both types of roots was reduced by wet treatment. Concentrations of K and P in both species also were significantly lower for wet-treated roots than for dry roots. Multipliers for converting concentrations in wet-treated roots to concentrations in dry roots were, for pine; 5.4 and 1.2 for K and P, respectively, and for grass 5.9 and 3.1 for K and P, respectively. However, these factors may be inappropriate for roots that had less exposure to water, or to roots of different anatomy and nutrient concentrations. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 18 van 26 gevonden artikelen
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