Zn concentrations and contents were significantly higher in snails exposed to liquid and composted sludge after 5 and 7 weeks of exposure, when compared with control.
Maize shoots from NH4-Depot treatments had higher shoot concentrations and contents of N and P than those from NO3-Mixed treatments (Table 2).
Placed 15N-labelled (NH4 2SO4 + DMPP depot led to increased localized rooting, rhizosphere acidification, shoot 15N signal, N and P concentrations and contents than homogenously applied Ca(NO3 2.
We also describe the concentrations and contents of ten mineral nutrients (Fe, Zn, Cu, Mn, Mo, Ni, Ca, Mg, K and S) in these organs over time.
Placement of 15N-labelled stabilized (NH4 2SO4 + DMPP had an effect on root length density (RLD), and rhizosphere pH 5 × 5 cm to seeds, shoot 15N signal and shoot N and P concentrations and contents at 55DAS.
Trace element concentrations and contents in gills, gonad, kidneys, mantle, muscle and remainder during the reproductive cycle of female and male spiny and Pacific scallops, from the Strait of Georgia, BC, Canada, were quantified by using ICPMS.
For the F2 plant population, QTLs for tocopherol concentrations and contents were analyzed.
Multiple regression analysis demonstrated that age at lead exposure remained a significant predictor of blood and organ lead concentrations and contents even after the inclusion of total lead consumed, body weight, and age at organ harvesting in the regression analysis.
Blood and organ lead concentrations and contents 4 weeks after lead exposure ceased were significantly higher in the rats exposed beginning at 5 weeks of age than in those exposed beginning at 10 or 15 weeks old.
N-form effects on shoot N and P concentration and content were stronger than that of PGPM.
