Assertion: phosphorus's concentration | /r/HasProperty | low
Facets:
value: very
type: DEGREE
value: generally
type: DEGREE
value: in the oceans
type: LOCATION
value: at normal soil ph
type: OTHER
value: at the surface
type: LOCATION
Source sentences:
text: Since concentration of phosphorus in the soil solution is low, plants use mostly active uptake against the concentration gradient (i.e. concentration of phosphorus is higher in the roots compared with the soil solution).
text: At normal soil pH (5.0-8.0), the concentration of H+ available for reactions is so low that the phosphate forms mentioned earlier are only a small and transient component of the total soil P reserve.
text: In the oceans, the concentration of phosphates is very low, particularly at the surface.
text: Phosphorus clings tightly to soil particles and is used by plants, so its concentrations in clean waters is generally very low.
text: The concentration of soluble phosphate in the soil solution is very low, and phosphorus is relatively immobile in the soil.