Notice of RetractionNovel Preparation Method of Nutrient Composite-Soil for Resourcification of Biogas Dreg-Residue

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

The objective of this study is to provide a feasible and applicable method for reutilization and resourcification of the biogas fermentation residue. A novel method was presented to investigate the preparation of nutrient composite-soil by using biogas dreg-residue as raw material. The physical and chemical characteristics of the prepared composite-soil were systematically determined. The results suggested some parameters of the composite-soil (including the porosity, water content, bulk density, total N content (Tot-N), and total P content(Tot-P)) were superior to that of the check sample, the black soil. Henna was chosen as tested plant. And some important apparent parameter of the tested plant in the composite-soil, such as germination percentage, the average plant height, the average leaf length, and the average leaf breadth, were larger than that in the check sample, black soil.