https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33758 3 showed higher correlations (r = 0.91 and 0.96, respectively) with plant K uptake values. Both the chemical and biological methods were able to extract only a portion (12–20%) of total K present in the mineral powder. The results indicated that the mineral powder could be used as a slow release K fertilizer in soils. Further studies in long term applications with exhaustive crops under field conditions are needed to assess its feasibility as a source of K in agriculture.]]> Thu 30 Jan 2020 11:19:11 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35990 Thu 23 Jan 2020 11:40:13 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33207 o), Fe(III) oxide and cow manure increased Cr(VI) retention. The effect of S^o on Cr(VI) sorption is mediated through a decrease in soil pH, which facilitated an increased retention of Cr(VI) as measured by Freundlich sorption coefficient from 0.079 (in pristine soil, pH7.15) to 21.06L/kg (in S^o amended soil, pH4.08). Also, Fe(III) oxide addition at 5% has favoured for an increase in the retention of Cr(VI) (K_f =91.15L/kg). Cow manure promoted Cr(VI) reduction, possibly due to the presence of functional groups that are present along with dissolved organic carbon and also by increased microbial activity. It is concluded that the mitigation of Cr toxicity is brought about by the addition of amendments which manipulate the properties of soil to increase retention of Cr(III) and Cr(VI).]]> Thu 21 Oct 2021 12:51:17 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36535 Fri 16 Feb 2024 15:39:29 AEDT ]]>