High Charge Density Polymers for Fertilizer Nutrient Stabilization
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Solution Overview
Problem
Fertilizers often fail to fully utilize nutrients due to reactions that lead to precipitation or clumping of inorganic phosphate, carbonate, or sulfate salts, resulting in low availability for plants, with less than 50% of fertilizers being absorbed by plants and significant losses of phosphorus and nitrogen before application.
Innovation Solution
The development of high charge density polymers that inhibit the precipitation of inorganic phosphate, carbonate, or sulfate salts and disperse inorganic particulates, enhancing the availability of nutrients by stabilizing fertilizer components and improving their uptake by plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional fertilizers are applied to soil, then nutrients are provided to plants, but reactions between elements cause precipitation of phosphate minerals that decreases available nutrients
Solution Approach 1:
The patent introduces organic acids and chelating agents as intermediary substances that bind to metal ions (Ca2+, Mg2+, Fe3+, Al3+) to form soluble complexes. This prevents these metal ions from reacting with phosphate to form precipitates, thereby maintaining phosphorus availability. The intermediary substances act as buffers that mediate between the phosphate fertilizer and metal ions in the soil.
Solution Approach 2:
The patent changes the chemical parameters of the fertilizer system by incorporating organic acids and chelating agents that alter the solubility and reactivity of phosphate compounds. These parameter changes prevent the formation of insoluble phosphate minerals and maintain nutrients in a plant-available form throughout the soil environment.
2Productivity
If fertilizers are applied to promote plant growth, then nutrient supply increases, but less than 50% of fertilizer is absorbed by plants due to precipitation reactions
Solution Approach 1:
The organic acids and chelating agents serve as mediators that facilitate nutrient availability. By binding to metal ions and preventing phosphate precipitation, they ensure that a higher proportion of applied fertilizer remains in a form that plants can absorb and utilize, thereby improving overall fertilizer use efficiency.
Solution Approach 2:
The patent creates composite fertilizer formulations that combine conventional inorganic fertilizers with organic acids and chelating agents. This composite approach leverages the nutrient-providing capacity of inorganic fertilizers while the organic components prevent precipitation and enhance availability, resulting in more efficient plant uptake.
3Quantity of substance
If inorganic phosphate is applied to soil, then phosphorus nutrition is provided, but precipitation with metal ions forms phosphate minerals that reduce nutrient availability
Solution Approach 1:
The organic acids and chelating agents act as intermediaries that bind to metal ions (Ca2+, Mg2+, Fe3+, Al3+) to form stable soluble complexes. This prevents these metal ions from reacting with phosphate to form insoluble precipitates, thereby maintaining phosphorus in a soluble, plant-available form and stabilizing its composition in the soil.
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
This solution increases the efficacy of fertilizer nutrients, leading to higher crop yields and reduced application rates, while also addressing micronutrient interactions like zinc availability, thereby enhancing profitability and optimizing plant growth.
Implementation Method 1
A fertilizer having the ability to prevent or inhibit the precipitation of inorganic phosphate, carbonate, or sulfate salts
Implementation Method 2
the ability to disperse inorganic particulates
Data Source
AI summary
Interpolymers useful for enhancing the efficacy of nutrients in soil and fertilizers; and methods of inhibiting the precipitation of, and/or dispersing, inorganic elements.