Zeolite Micronutrient Delivery for Controlled Release
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Solution Overview
Problem
Current methods for providing trace elements to plants, such as iron chelates, are costly, unstable, and environmentally problematic, with limitations in adjustability and soil stability, and often leave toxic residues.
Innovation Solution
A method using modified or natural zeolites with exchanged cations to provide assimilable trace elements, allowing for controlled release near plant roots, using zeolites that can capture and release macroelements, and are non-polluting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chelated complexes (e.g., iron-EDTA, iron-EDDHA) are used to provide trace elements to plants, then trace element delivery is effective, but the cost is high and adjustability is limited
Solution Approach 1:
The patent changes the fundamental parameter of trace element delivery from fixed-composition chelates to variable-composition zeolite exchanges. By controlling the exchange process and zeolite properties, the trace element content can be adjusted to any desired level, eliminating the fixed 6% iron content constraint of iron-EDDHA and enabling customized formulations for different plant needs.
Solution Approach 2:
The patent replaces expensive, complex chelating agents with inexpensive, naturally abundant zeolite minerals. This substitution dramatically reduces costs while maintaining or improving delivery effectiveness, making trace element supplementation accessible for general agriculture rather than just high-value crops.
2Reliability
If chelated complexes are used to correct trace element deficiencies, then plant nutrition is improved, but environmental pollution and toxic residues occur
Solution Approach 1:
The patent converts the typically harmful excess of exchangeable cations in zeolites into a beneficial feature. The same ion-exchange capacity that could potentially release excessive nutrients is instead used to precisely load and control the release of beneficial trace elements, transforming a potential污染源 into a controlled delivery mechanism.
Solution Approach 2:
The patent introduces zeolite as an intermediary carrier between trace element sources and plants. This intermediary provides controlled release, preventing the direct application problems of chelates while avoiding the accumulation of toxic residues. The zeolite acts as a buffer and delivery system that protects the environment while nourishing plants.
3Reliability
If chelated complexes are applied to soils, then trace element availability increases, but stability decreases due to light sensitivity and alkaline soil degradation
Solution Approach 1:
The patent replaces fragile, light-sensitive chelate molecules with robust, photostable zeolite crystal structures. The trace elements are protected within the zeolite framework, eliminating degradation from light exposure and chemical breakdown in alkaline soils, ensuring long-term stability and consistent availability.
4Productivity
If conventional fertilizer application methods are used, then trace elements are supplied to plants, but the frequency of application must be high due to rapid depletion
Solution Approach 1:
The patent performs preliminary action by pre-loading zeolite with trace elements during manufacturing, creating a reservoir that gradually releases nutrients over time. This advance preparation eliminates the need for frequent reapplication, as the zeolite continuously supplies trace elements based on soil conditions and plant needs, significantly reducing management frequency.
Solution Approach 2:
The patent establishes continuous useful action through the sustained ion-exchange release mechanism of zeolite. Unlike conventional fertilizers that are rapidly depleted, the zeolite maintains a continuous, controlled release of trace elements over extended periods, ensuring uninterrupted plant nutrition and eliminating application gaps.
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 method provides stable, adjustable, and environmentally friendly trace element delivery, reducing soil pollution and enhancing plant nutrition without toxic residues, while being cost-effective and easy to implement.
Implementation Method 1
use of a zeolite prepared in a specific manner or modified or of natural origin, of which extra-network cations Na + have been exchanged at least in part by a trace element
Implementation Method 2
the zeolites used have a hydrophilic nature and can capture up to 30 to 35% of their weight in water, generally without variation in volume. They can also capture macroelements (ammonium, potassium for example) in a reversible manner, that is to say behave like a temporary storage zone
Data Source
AI summary
The invention relates to the use of zeolites for supplying plants with micronutrients that can be assimilated, in particular using a composition including a zeolite and a micronutrient. The invention mainly pertains to the field of agriculture, in particular to the prevention or correction of assessed micronutrient deficiencies in plants grown in open fields or through hydroponics.