Application of olive pomace polyphenol extract-hydroxytyrosol as a biogenic nitrogen fertilizer synergist

By using hydroxytyrosol in olive pomace polyphenol extract as a biogenic nitrogen fertilizer enhancer in agriculture, the negative impact of chemically synthesized nitrification inhibitors on the ecology is resolved, the utilization rate of nitrogen fertilizer is improved, nitrogen loss is reduced, and the application range of hydroxytyrosol is expanded.

CN116253605BActive Publication Date: 2025-09-26SHANDONG AGRICULTURAL UNIVERSITY
3 Cites 0 Cited by

Patent Information

Application Number
CN202211743516.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-30
Publication Date
2025-09-26
Estimated Expiration
2042-12-30

AI Technical Summary

Technical Problem

Existing chemically synthesized nitrification inhibitors have negative impacts on farmland ecosystems, resulting in low nitrogen fertilizer utilization and serious nitrogen loss. It is necessary to develop green and environmentally friendly biogenic nitrogen fertilizer enhancers to improve nitrogen fertilizer utilization and reduce loss.

Method used

Hydroxytyrosol in olive pomace polyphenol extract is used as a biosource nitrogen fertilizer synergist. By applying it at 1/5-1/3 of the nitrogen application rate, the nitrification process of nitrogen is inhibited, the retention time of ammonium nitrogen in the soil is prolonged, and the nitrogen utilization rate is improved.

Benefits of technology

It effectively inhibits ammonia-oxidizing bacteria and archaea in the soil, prolongs the retention time of ammonium nitrogen in the soil, improves the utilization rate of nitrogen fertilizer, reduces nitrogen loss, protects soil ecology, and broadens the application field of hydroxytyrosol.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention relates to the field of biogenic nitrogen fertilizer synergists, and in particular to an application of an olive pomace polyphenol extract-hydroxytyrosol as a biogenic nitrogen fertilizer synergist. The biogenic nitrogen fertilizer synergist component prepared by the present invention is an olive pomace polyphenol extract-hydroxytyrosol. After the olive pomace is deoiled, it is extracted under acid hydrolysis conditions, and an alkaline solution of sodium hydroxide is used to adjust the pH value to neutral to obtain the corresponding hydroxytyrosol. The abundance of soil nitrifying microorganisms (ammonia oxidizing bacteria and ammonia oxidizing archaea) and the conversion of mineral nitrogen in the soil can be effectively suppressed, the effectiveness of nitrogen in the soil can be improved, nitrogen can be more effectively absorbed and utilized by crops, the olive pomace is effectively recycled, and the problems of huge environmental pollution and waste of resources caused by the olive pomace can be effectively avoided.
Need to check novelty before this filing date? Find Prior Art