Prof. Dr. Dinh Quang Khieu, project manager, reports on the project implementation results.

After 2 years of implementation (from August 2023 to July 2025), the project has completed the work contents compared to the requirements. The research team has assessed the current status of peat mines in Hue city, including 3 mines with a total area of ​​more than 149 hectares, with an estimated resource reserve of more than 1.85 million tons. The chemical composition of peat in the mines is very rich and diverse, an essential source of nutrients for plants, with 2 main components accounting for the highest proportion: humic acid (accounting for nearly 17.8%) and average humus content (accounting for 30.86%).

Researching animal bones, the project team determined that the main chemical components of bones are Ca and P, which account for a high proportion. Recycling waste into useful materials can replace the components that are currently being exploited as phosphorus fertilizers, providing a clean source of phosphorus fertilizers, capable of fixing heavy metals in the soil and usefully amending the soil.

The project also developed a process for preparing humic acid from peat, which is a good alternative to remediate eroded soil, reducing costs, leaving no polluting residues, and easily providing nutrients for soil and plants. The research successfully studied the process for preparing and producing organic nanophosphate fertilizer from peat and animal bones. A homogeneous and stable nano-hydroxylapatite fertilizer suspension consisting of water-soluble chitosan-stabilized hydroxyapatite nanoparticles and humic substances extracted from peat was made. This fertilizer significantly increased the photochemical process, leading to improved crop quality (melon model) in terms of vitamin C and sugar compared to the control sample for melon.

The Council highly appreciated the effectiveness of the topic as well as the required contents to perform the S&T tasks.

As a result, the project team successfully applied the model of using organic nano phosphate fertilizer for melon and peanut plants according to VietGAP standards in Vinh Loc and Dan Dien communes. The result of melon yield increased by 22.2% compared to the control model, better quality, economic efficiency reached over 15%. The result of peanut yield increased by 22% compared to the control. The economic efficiency brought about when using organic nano phosphate fertilizer for peanut cultivation is 20% higher than the control.

In addition to some comments suggesting revisions to complete the report of the results of the topic from the reviewers, the topic was highly appreciated by the council, because of its scientific significance and practical value. Many opinions said that it is necessary to transfer the research results of the topic to businesses to complete the process of commercializing research products, soon apply research results into practice, bringing practical benefits to the economy, environment and society.

NOSTALGIA

Source: https://huengaynay.vn/kinh-te/khoa-hoc-cong-nghe/san-xuat-phan-lan-nano-tu-than-bun-xuong-dong-vat-va-ung-dung-san-xuat-nong-nghiep-tot-157849.html