Carbon-to-phosphorus ratio

Anderson L. D., Delaney M. L., and Eaul K. L. (2001) Carbon to phosphorus ratios in sediments implications for nutrient cycling. Global Biogeochem. Cycles 15, 65-80. 

Factors that affect the uptake of phosphorus from added plant residues by a crop include the carbon-to-phosphorus ratio (Umrit and Friesen, 1994), soil phosphorus availability (Thibaud et al., 1988), nitrogen availability (Umrit and Friesen, 1994) and the amount of added residues (Joseph et al., 1995). Armstrong et al. (1993) reported that the net release of phosphorus from P-... 

The second lesson learned from a biochemical overview is that carbon and phosphorus metabolic strategies are inextricably intertwined. The rate of phosphate uptake, the cellular carbon-to-phosphorus ratio, and the growth efficiency per mole of phos-... 

Reference Location Soil type Material Phosphorus (g/kg) Carbon-to- phosphorus ratio Result... 

Fig. 15.6. CENTURY model-simulated results for soil phosphorus loss (organic and inorganic phosphorus) total nitrogen loss (nitrate, gaseous nitrogen and dissolved organic nitrogen) and nitrate loss (a) and change in live leaf carbon-to-nitrogen and carbon-to-phosphorus ratios (b) for the Hawaiian 4.1 million year soil chronosequence.

Fig. 16.1. Seasonal variation of carbon-to-phosphorus ratio in organic material collected in a sediment trap at 20 m depth in Lake Sempach, Switzerland (upper panel) and seasonal variation in filterable reactive phosphorus (FRP) concentration observed at 10 m depth in Lake Sempach (lower panel). The carbon-to-phosphorus ratio is significantly higher than the Redfield ratio of 106 1 (dashed line) during periods of low filterable reactive phosphorus. Reproduced from Hupfer etal. (1995) with permission from Birkhauser Verlag.

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