Homogeneous Biostimulant Fertilizer Particles for High-Temperature Processing

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Solution Overview

Problem

Existing agricultural practices face inefficiencies in combining biostimulants with nitrogen-containing fertilizers, as high-temperature processes degrade biostimulants, and separate application increases operational complexity.

Innovation Solution

Incorporating biostimulants like humic acids, fulvic acids, seaweed extracts, amino acids, peptides, polysaccharides, and lignosulfonates into the production process of nitrogen-containing fertilizers, ensuring even distribution and retention of biostimulant activity at high temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biostimulants are added during high-temperature fertilizer production, then nutrient use efficiency is improved, but biostimulant activity is degraded

Engineering Contradiction:
Improvebiostimulant activityVSAvoidproduction temperature
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The biostimulant is added to the molten fertilizer material during the production process, allowing it to be incorporated before the material solidifies. This preliminary incorporation ensures the biostimulant is distributed throughout the fertilizer particles while being exposed to high temperatures only briefly during the production process, thereby maintaining its activity while achieving homogeneous distribution.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes the temperature and viscosity changes of the fertilizer material during production. By adding the biostimulant to the molten state and allowing it to be incorporated as the material cools and solidifies, the process leverages parameter changes to achieve both homogeneous distribution and preservation of biostimulant activity, resolving the contradiction between temperature exposure and activity retention.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If biostimulants are applied separately from fertilizers, then application flexibility is maintained, but operational complexity increases

Engineering Contradiction:
Improveapplication simplicityVSAvoidapplication system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The biostimulant is directly incorporated into the fertilizer production process, merging two separate products (fertilizer and biostimulant) into a single integrated product. This eliminates the need for separate application operations, reducing operational complexity while maintaining the synergistic effects of both components, as they are delivered together to the soil in a single application.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If biostimulants are evenly distributed in fertilizer, then release timing is synchronized, but manufacturing precision is challenged

Engineering Contradiction:
Improvehomogeneous distributionVSAvoiddistribution uniformity
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent exploits the parameter changes of the fertilizer material during production, specifically the transition from solid to molten state and back. By adding the biostimulant to the molten material and allowing it to be incorporated during cooling and solidification, the process achieves homogeneous distribution through natural convection and mixing that occurs during phase change, thereby achieving stable composition without requiring extremely precise manufacturing control.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The resulting fertilizer particles enhance nutrient use efficiency, increasing shoot dry matter, root dry matter, leaf area, and phosphorus use efficiency, while reducing operational complexity.

Implementation Method 1

optionally, mixing the molten material comprising the biostimulant

Methodology Applied
Scientific EffectMixing: Stirring

Data Source

PatentEP4682134A1Fertilizer particle comprising biostimulant
Publication Date: 2026.01.21 YARA INTERNATIONAL ASA
  • EP4682134A1 patent drawing
  • EP4682134A1 patent drawing

AI summary

The present invention relates to a fertilizer particle. The fertilizer particle comprises from 1.0 to 30 weight% of nitrogen, based on the total weight of the fertilizer particle, and from 0.0001 to 5.0 weight% of a biostimulant, based on the total weight of the fertilizer particle, wherein the fertilizer particle is homogeneous.