Biofertilizer Composition for Turf Grass Nitrogen Fixation

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Solution Overview

Problem

Conventional chemical fertilizers lead to environmental contamination and inefficiencies due to high nitrate runoff and limited competition of introduced nitrogen-fixing bacteria with native flora, necessitating alternative methods for sustainable soil fertilization.

Innovation Solution

A biofertilizer composition comprising a consortium of bacteria, including Azospirillum brasilense, which replicates in the soil to provide nitrogen fixation and plant growth hormones, reducing the need for chemical fertilizers and minimizing environmental impact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If chemical fertilizers are applied to increase soil fertility and crop production, then plant growth is improved, but environmental contamination through nitrate runoff and ground water pollution worsens

Engineering Contradiction:

Improvecrop productionVSAvoidnitrate contamination

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the chemical form of nitrogen from synthetic chemical fertilizers to biologically-fixed nitrogen through bacterial action. The system uses nitrogen-fixing bacteria (Azotobacter, Azospirillum, Rhizobium) and phosphate-solubilizing bacteria to convert atmospheric nitrogen and insoluble phosphates into plant-available forms, fundamentally changing the nitrogen delivery mechanism from direct chemical application to biological conversion, thereby reducing nitrate runoff while maintaining crop productivity

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The fertilizer composition enables self-sustaining microbial growth in the soil that continuously provides nitrogen fixation and phosphate solubilization services. The living bacterial cultures in the composition replicate and multiply in the soil environment, creating a self-replenishing system that reduces the need for repeated chemical fertilizer applications and minimizes environmental contamination from excess nitrogen

Inventive Principle:

Principle #25Self-service

2Object-affected harmful factors

If nitrogen-fixing bacteria are introduced to reduce chemical fertilizer use, then environmental impact is reduced, but the bacteria fail to compete effectively with native soil flora

Engineering Contradiction:

Improveenvironmental impactVSAvoidbacterial competition

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The invention creates a composite microbial fertilizer composition containing multiple bacterial species (Azotobacter, Azospirillum, Rhizobium, phosphate-solubilizing bacteria) that work synergistically. This multi-species composite provides functional diversity and competitive advantage over single-strain introductions, as different bacteria contribute different mechanisms (nitrogen fixation, phosphate solubilization, plant growth promotion) that collectively enhance colonization success and reduce dependence on any single bacterial population

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The fertilizer composition provides multiple functions through different bacterial components: nitrogen fixation by diazotrophs, phosphate solubilization by specific bacteria, and plant growth hormone production. This multi-functionality ensures that even if one bacterial group faces competition challenges, other functional groups can compensate, maintaining overall system reliability and reducing environmental impact through diverse biological mechanisms

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

The biofertilizer composition enhances turf grass biomass and reduces nitrate contamination, offering a sustainable and cost-effective solution for soil fertilization by promoting self-sustaining microbial growth and nitrogen availability.

Implementation Method 1

The use of nitrogen-fixing bacteria provides plants with nitrogen compounds needed for growth

Methodology Applied

Scientific EffectNitrogen fixation:

Implementation Method 2

there is increasing evidence that other bacteria provide plant hormones to enhance growth

Methodology Applied

Scientific EffectHormone production:

Implementation Method 3

Biofertilizers (fertilization compositions comprising microbes) have been identified as an alternative to chemical fertilization to increase soil fertility and crop production

Methodology Applied

Scientific EffectBiological fertilization:

Data Source

PatentUS8029593B2Biofertilizer for treatment to improve growth of turf grass and method of developing the biofertilizer

Publication Date: 2011.10.04 BOARD OF RGT NEVADA SYST OF HIGHER EDUCATION ON BEHALF OF THE UNIV OF LAS NEVADA THE

AI summary

Biofertilizers have been identified as an alternative to chemical fertilization to increase soil fertility and crop production using sustainable farming. Treatment is with at least a proprietary formulation of a nitrogen-fixing consortium and Azospirillum brasilense. The application of biofertilizers resulted in higher biomass compared to chemical fertilizer treatment. Chlorophyll and nitrogen levels in these grass plants are also likely to be improved.