https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26004 -1·year^-1; P₄K₁ = 150:37 kg·ha^-1·year^-1) were applied manually on the forest floor for two years. Rs and Rh rates were monitored from April 2011 to March 2013. Mean Rs and Rh rates were not significantly affected by fertilizer applications. However, Rh in the second year following fertilizer application fell to 27% for N₃P₄K₁ and 17% in P₄K₁ treatments, while there was an increase of 5% in the control treatments compared with the first fertilization year. The exponential relationships between Rs or Rh rates and the corresponding soil temperature were significant (Rh: R² = 0.86-0.90; p < 0.05; Rs: R² = 0.86-0.91; p < 0.05) in the fertilizer and control treatments. Q₁₀ values (Rs increase per 10°C increase in temperature) in Rs rates were lowest for the N₃P₄K₁ treatment (3.47), followed by 3.62 for the P₄K₁ treatment and 3.60 in the control treatments, while Rh rates were similar among the treatments (3.59-3.64). The results demonstrate the importance of separating Rh rates from Rs rates following a compound fertilizer application.]]> Tue 21 Jul 2020 10:37:24 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46250 14CO₂ gas for six hours on the 31st day. Biomass in all seedling components (foliage, stems and roots) was significantly higher in the moderate soil water content treatment than in the low soil water content treatment, while seedling biomass did not significantly differ between the moderate soil water and high soil water content treatments. The shoot/root ratio of seedlings decreased when soil water content decreased. The C concentrations of radiata pine seedlings were not affected by the soil water content, whereas the soil water stress-induced difference in the C allocation of seedlings was attributed to differences in seedling biomass. The translocation of pulse-labelled ¹⁴C from the foliage to the roots was enhanced by low soil water content. The distribution of ¹⁴C was highest in foliage, followed by roots, stems and soil. The results indicate that soil water content was one of the primary factors influencing biomass allocation in the early growth of radiata pine seedlings.]]> Mon 14 Nov 2022 13:28:59 AEDT ]]>