Polyether-Modified Siloxanes for Hydrophobic Soil Irrigation
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Solution Overview
Problem
Agricultural productivity has declined due to soil degradation and limited water infiltration in hydrophobic soils, exacerbated by climate change and intensive farming practices, leading to reduced yields and increased food demand challenges.
Innovation Solution
The use of polyether-modified short-chain siloxanes in irrigation systems to enhance water infiltration and retention in the root zone, increasing agronomic yields without the need for herbicides, fungicides, or insecticides, applied at low rates to various soils and substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional wetting agents (anionic surfactants) are used to improve water infiltration in hydrophobic soils, then water penetration is improved, but phytotoxicity and adverse effects on soil structure occur
Solution Approach 1:
The patent changes the chemical parameters of wetting agents by using non-ionic surfactants with specific HLB values (10-16) and molecular structures (alkoxylated polyols, glucoethers, ethoxylated/propoxylated alcohols) instead of conventional anionic surfactants. This parameter change maintains effective water infiltration while eliminating phytotoxicity and soil structure damage.
Solution Approach 2:
The patent employs biodegradable wetting agents that break down quickly in the environment, replacing persistent conventional surfactants. These short-acting agents provide the necessary wetting effect during irrigation but decompose thereafter, avoiding long-term accumulation and harmful effects on soil ecosystems.
2Productivity
If irrigation systems are increased to meet food demand, then crop yield is improved, but water resource depletion and energy consumption increase
Solution Approach 1:
The patent changes the physical-chemical parameters of water application by using surfactants that reduce surface tension and improve water infiltration efficiency. This allows the same amount of water to be utilized more effectively, increasing crop yield without proportionally increasing water and energy input for irrigation.
Solution Approach 2:
The patent ensures continuous moisture availability in the root zone through improved infiltration and retention characteristics provided by the wetting agents. This continuous action maximizes the utility of each irrigation event, reducing the frequency and total volume of water application needed throughout the growing season.
3Productivity
If fertilizer application is increased to maintain productivity, then crop yield is improved, but soil fertility decline and environmental pollution worsen
Solution Approach 1:
The patent introduces wetting agents as intermediary substances that improve the interaction between water and soil, enhancing water infiltration and retention. This intermediary action optimizes nutrient transport and root uptake efficiency, allowing reduced fertilizer application while maintaining crop yield and minimizing soil degradation.
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
Significantly increases agronomic yields by improving water penetration and retention, stabilizing harvest results, and extending the harvest period, with benefits observed in fruit size, flower, and fruit production across various crops.
Implementation Method 1
They reduce the static surface tension of water significantly more than the products mentioned above. For example, with trisiloxanes, the static surface tension at a dosage of 0.05 percent by weight in water is approximately 20 to 25 mN/m.
Implementation Method 2
increasing the infiltration and retention of water by adding wetting agents has been investigated in the past, especially for hydrophobic soils
Data Source
Figure 1
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AI summary
The invention relates to the use of polyether modified short-chain siloxanes in agriculture in order to increase agronomic yield, a method for irrigation, and a kit containing at least one polyether modified short-chain siloxane, and an irrigation system.