Penflufen for Selective Root Growth in Sodded Lawns

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Solution Overview

Problem

Current lawn growth-promoting agents are ineffective in promoting root growth and improving water and nutrient absorption in lawns propagated through vegetative propagation methods like sodding, where above-ground growth is suppressed.

Innovation Solution

The use of penflufen, a compound represented by the formula N-[2-(1,3-dimethylbutyl)phenyl]-5-fluoro-1,3-dimethyl-1H-pyrazol-4-carboxamide, or its agriculturally acceptable salts, to enhance root growth and lawn propagation in sodded areas, formulated into various agricultural formulations such as solutions, emulsions, and granules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If conventional growth-promoting agents (chlorella extract, shiitake extract, mixed herbal extracts) are used, then above-ground lawn growth is promoted, but root growth and water/nutrient absorption are not effectively improved

Engineering Contradiction:
Improveabove-ground lawn growthVSAvoidroot growth promotion effectiveness
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The patent changes the chemical parameter by introducing penflufen, a carboxamide compound with specific molecular structure (N-[2-(1,3-dimethyl butyl) phenyl]-5-fluoro-1, 3-dimethyl-1H-pyrazol-4-carboxamide), which has different physiological effects compared to conventional organic extracts. This chemical parameter change enables selective promotion of root growth while suppressing above-ground growth, resolving the contradiction between above-ground growth promotion and root growth effectiveness.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If penflufen is applied to promote root growth, then root spread and water/nutrient absorption are improved, but above-ground growth is suppressed

Engineering Contradiction:
Improveroot growth promotion effectivenessVSAvoidabove-ground lawn growth
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The patent applies local quality by directing the growth-promoting effect specifically to the root system rather than uniformly across the entire plant. Penflufen creates a differential growth response where roots receive growth stimulation while above-ground portions experience growth suppression, achieving localized growth promotion where it is most needed for sodded lawns.

Inventive Principle:
Principle #3Local quality

3Productivity

If lawn propagation is through vegetative propagation (sodding) with runner elongation, then rapid lawn establishment is achieved, but effective growth promotion in newly sodded areas is difficult

Engineering Contradiction:
Improvelawn establishment speedVSAvoidgrowth promotion effectiveness in sodded areas
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by treating the lawn immediately after sodding or during the early establishment phase. This timing captures the critical window when runner elongation is actively occurring, allowing penflufen to enhance root development at the most vulnerable and important stage of vegetative propagation, thereby ensuring reliable growth promotion in newly sodded areas.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2967063B1Lawn growth-promoting agent and method of using same
Publication Date: 2017.10.18 BAYER CROPSCIENCE AG
  • EP2967063B1 patent drawing
  • EP2967063B1 patent drawing
  • EP2967063B1 patent drawing

AI summary

The present invention relates to the use of penflufen to promote lawn growth.