Humic-Ion Complex Fertilizer for Nitrogen Fixation
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Solution Overview
Problem
Current fertilizing methods rely heavily on nitrogenous fertilizers due to the difficulty in converting atmospheric nitrogen into assimilable forms for plants, as nitrogen fixation by microorganisms like Clostridium, Rhizobium, and Azotobacter is limited by environmental factors such as cobalt, iron, and molybdenum deficiencies, leading to inefficient plant growth and soil nitrogen accumulation.
Innovation Solution
A fertilizing composition comprising cobalt, iron, and molybdenum ions complexed with modified humic substances to enhance the nitrogen-fixing capacity of microorganisms like Clostridium pasteurianum, Rhizobium, and Azotobacter, facilitating the conversion of atmospheric nitrogen into metabolites assimilable by plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If nitrogenous fertilizers are applied to increase nitrogen availability for plants, then plant growth is improved, but soil nitrogen accumulation occurs and environmental harm increases
Solution Approach 1:
The invention activates nitrogen-fixing microorganisms in the soil to naturally convert atmospheric nitrogen into plant-available forms, allowing the soil system to self-supply nitrogen without external fertilizer inputs, thus avoiding nitrogen accumulation while maintaining plant growth
Solution Approach 2:
Humic substances act as intermediaries that complex with cobalt, iron, and molybdenum ions, delivering these essential nutrients to nitrogen-fixing microorganisms, thereby enhancing their nitrogen fixation capability without direct application of nitrogen fertilizers
2Quantity of substance
If atmospheric nitrogen is converted into assimilable forms by microorganisms, then nitrogen availability for plants is improved, but the process is limited by cobalt, iron, and molybdenum deficiencies
Solution Approach 1:
The invention changes the availability parameters of cobalt, iron, and molybdenum ions by complexing them with humic substances, transforming these micronutrients from unavailable or poorly available forms into bioavailable complexes that nitrogen-fixing microorganisms can effectively utilize
Solution Approach 2:
The invention creates composite structures where humic substances complex with multiple metal ions (cobalt, iron, molybdenum) simultaneously, forming multifunctional complexes that deliver several essential nutrients to microorganisms in a single formulation, enhancing the reliability of nitrogen fixation
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 composition significantly increases the number of nitrogen-fixing microorganisms with enzymatic activity, improving plant growth and reducing the need for nitrogenous fertilizers by enhancing the complexation capacity of humic acids with cobalt, iron, and molybdenum ions, as demonstrated by increased nitrogenase activity in soil cultures.
Implementation Method 1
A fertilizing composition comprising cobalt, iron, and molybdenum ions complexed with modified humic substances to enhance the nitrogen-fixing capacity of microorganisms
Data Source
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AI summary
The invention provides a fertilizing composition which includes cobalt, iron and molybdenum ions complexed with humic substances to improve the capacity of the nitrogen-fixing microorganisms present in the soil such as Clostridium, in particular Clostridium pasteurianum, Rhizobium and Azotobacter to convert atmospheric nitrogen, which is not easily combined with other elements, into metabolites assimilable by the plants and thus increase the quantity of nitrogen assimilable by the plants in the soil, thus improving the growth or development thereof.