Plant Feed Solution Control Using Root-Zone EC Feedback

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Solution Overview

Problem

Conventional horticultural methods rely on 'one size fits all' schedules for irrigation and fertilizer application, failing to optimize water and nutrient delivery to plants, which limits their growth potential.

Innovation Solution

A method and system that provide a feed solution with a consistent water-to-fertilizer ratio at each watering event, adjusting the frequency of feedings based on electrical conductivity measurements in the root zone to maintain an optimal ratio, ensuring plants receive necessary nutrients for maximum growth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional irrigation and fertilizer schedules are used, then操作简单性 is maintained, but plant growth optimization is limited

Engineering Contradiction:
Improveplant growth and yieldVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses electrical conductivity (EC) sensors to continuously monitor the root zone and provide feedback on water and nutrient levels. This feedback loop allows the system to dynamically adjust irrigation and fertilization rates, optimizing plant growth while maintaining manageable operational complexity through automated control.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The invention transitions from static, pre-scheduled irrigation and fertilization to a dynamic system that continuously adapts to changing root zone conditions. The EC-based monitoring enables real-time adjustments to water and nutrient delivery, allowing the system to respond to plant needs as they change throughout the growing season.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If frequent irrigation with separate fertilizer applications are used, then water and nutrient delivery is simplified, but optimal water-to-nutrient ratio cannot be maintained

Engineering Contradiction:
Improvewater-to-nutrient ratio controlVSAvoidoperation convenience
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system merges irrigation and fertilization into a single integrated process by dissolving nutrients in the irrigation water. This creates a unified feed solution that delivers both water and nutrients simultaneously, enabling precise control of the water-to-nutrient ratio while simplifying operational procedures compared to separate applications.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention controls the concentration of nutrients in the irrigation water by adjusting the amount of fertilizer dissolved in the water. This parameter change approach allows precise control of the water-to-nutrient ratio, optimizing plant uptake while maintaining ease of operation through simple mixing ratios.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If fixed fertilizer application intervals are used, then scheduling is simple, but plant-specific nutrient needs are not met

Engineering Contradiction:
Improveadaptation to plant needsVSAvoidresponse time to plant needs
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The EC monitoring system provides continuous feedback on root zone conditions, enabling the system to detect when plants need additional water or nutrients. This real-time feedback eliminates the lag inherent in fixed-schedule applications, allowing the system to respond immediately to plant needs and adapt fertilizer application intervals dynamically.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system maintains optimal EC levels in the root zone through continuous monitoring and adjustment, ensuring that nutrients are always available when plants need them. This preliminary preparation of the root zone environment eliminates waiting periods associated with fixed-schedule applications, as the system proactively maintains optimal conditions rather than reacting to deficiencies.

Inventive Principle:
Principle #10Preliminary action

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 approach allows plants to maintain a narrow, optimal water-to-fertilizer ratio for a greater duration, promoting healthier growth and increased yield by dynamically adjusting feeding schedules according to the plant's needs and environmental conditions.

Implementation Method 1

such a ratio can be determined from the electrical conductivity (EC) levels in the root zone of the plant

Methodology Applied
Scientific EffectElectrical conductivity: Conduction (electrical)

Data Source

PatentUS11832562B2Method and system for providing nutrients to a plant
Publication Date: 2023.12.05 REDMAN GORDON ARTHUR
  • US11832562B2 patent drawing
  • US11832562B2 patent drawing
  • US11832562B2 patent drawing

AI summary

Methods and systems for providing nutrients to a plant are provided herein in which a feed solution containing water and solubilized nutrients are delivered to the plant at a desired ratio of concentration of water to fertilizer at each watering event in order to provide the plant with a consistent water to mineral ratio within their vascular system.