Biodegradable Rooting Strip Pockets for Substrate-Free Cuttings

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Solution Overview

Problem

The existing method of rooting cuttings in a substrate results in lengthy cultivation processes and significant losses, with the need for environmentally friendly alternatives that reduce waste and improve rooting efficiency.

Innovation Solution

A biodegradable strip element with pockets is used to root cuttings without a substrate, featuring wall-forming members made of biodegradable materials that retain moisture and nutrients, allowing for efficient rooting and easy transportation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If cuttings are rooted in a substrate, then rooting can be achieved, but the cultivation process becomes lengthy and generates waste materials

Engineering Contradiction:
Improvewaste materialVSAvoidcultivation time
Core Design Contradiction:
Loss of substanceVSLoss of time

Solution Approach 1:

The invention extracts the substrate from the rooting system entirely, using only a biodegradable strip element that provides structural support and moisture retention without requiring traditional rooting substrates like soil or perlite. This eliminates substrate waste while maintaining effective rooting conditions.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The biodegradable strip element is designed to decompose naturally after use, converting from a disposable item into a recoverable nutrient source that returns to the environment, thereby eliminating waste disposal issues while the structured design enables efficient rooting during the cultivation period.

Inventive Principle:
Principle #34Discarding and recovering

2Reliability

If multiple cuttings are cultivated in separate containers, then each cutting can be individually managed, but the process becomes complex and increases losses

Engineering Contradiction:
Improverooting success rateVSAvoidcultivation system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The strip element is segmented into multiple pockets along its length, with each pocket individually housing a cutting. This segmentation provides individual management for each cutting while maintaining a unified, simple strip structure that reduces overall system complexity compared to multiple separate containers.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple individual cutting management functions are merged into a single strip element structure, combining the advantages of individual container management with the simplicity of a unified system, thereby reducing complexity while maintaining reliability.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If traditional substrates are used for rooting, then cuttings can be cultivated, but transportation becomes costly and environmentally harmful

Engineering Contradiction:
Improvetransportation costVSAvoidenvironmental harm
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The invention removes the traditional substrate component entirely, replacing it with a biodegradable strip element that requires no substrate for transportation. This extraction eliminates the weight and environmental harm associated with transporting traditional substrates like soil while maintaining effective rooting capabilities.

Inventive Principle:
Principle #2Taking out (Extraction)

4Productivity

If cuttings are transplanted from small to large containers, then growth space is increased, but the process becomes lengthy and increases losses

Engineering Contradiction:
Improvecultivation efficiencyVSAvoidplant survival rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The strip element is pre-designed with an optimized structure that provides adequate support and moisture retention from the outset, eliminating the need for gradual transplantation through intermediate containers. Cuttings establish roots directly in the final configuration, preventing shock and loss associated with repeated transplants.

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 method reduces waste, enhances rooting efficiency, and allows for cost-effective, substrate-free transportation of rooted cuttings, ensuring optimal microclimate and reduced loss rates.

Implementation Method 1

the biodegradable material has a liquid retaining capacity of at least about 100 g liquid per 100 g of biodegradable material dry weight

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP4728851A2A method and system for producing, without the help of a substrate, a plurality of rooted cuttings from a plurality of unrooted cuttings
Publication Date: 2026.04.22 P & G IP GMBH
  • EP4728851A2 patent drawingFigure 1~2
  • EP4728851A2 patent drawingFigure 3a~3d
  • EP4728851A2 patent drawingFigure 4

AI summary

The present discloure relates to a system for producing, without the help of a substrate, a plurality of rooted cuttings from a plurality of unrooted cuttings, the system comprising: (i) a strip element (10, 10', 10") having a longitudinal dimension (L) and a transverse dimension (D) and consisting essentially of biodegradable material, the strip element (10, 10', 10") forming a plurality of empty pockets (12, 12') arranged successively one after another in a longitudinal direction (ℓ) of the strip element, wherein the strip element (10, 10', 10") has a first wall-forming member (20) and a second wall-forming member (22) arranged to at least partly overlap the first wall-forming member (20) in the longitudinal direction (ℓ) and to not fully overlap the first wall-forming member (20) in a transverse direction (d) of the strip element (10, 10', 10"), wherein the first wall-forming member (20) and the second wall-forming member (22) are fixed to each other in a spacer area (14, 14') of the strip element (10, 10', 10") longitudinally adjacent each pocket (12, 12') to thus delimit the plurality of pockets (12, 12'), wherein each pocket (12, 12') has a width (W, W') along the longitudinal direction of the strip element (10, 10', 10"), a depth (T) along the transverse direction (d) of the strip element (10, 10', 10"), an opening (16) at a top side (17) facing the transverse direction (d) of the strip element (10, 10', 10"), and a bottom side (18) opposite the top side, wherein the bottom side (18) is at least partially closed and the first wall-forming member (20) extends past the second wall-forming member (22) in the transverse direction (d) of the strip element at the top side (17) of each pocket (12, 12'), and wherein the biodegradable material has a liquid retaining capacity of at least about 100 g liquid per 100 g of biodegradable material dry weight; and (ii) at least one cutting inserted into each previously empty pocket (12, 12').