Potassium Formate Fertigation for Micro-Irrigation Plugging
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Solution Overview
Problem
Micro-irrigation systems are prone to plugging due to the addition of conventional fertilizers in irrigation water, which leads to uneven water and nutrient distribution and potential system shutdown, especially when using water sources with high mineral content or forming insoluble salts, and existing fertilizers are costly and contain unnecessary components that increase shipping and handling burdens.
Innovation Solution
A method of potassium fertigation using a potassium-nutrient feedstock comprised of potassium formate and water, which has a high potassium content, minimal water content, and no yield-extraneous or adverse constituents, reducing the risk of plugging and minimizing shipping, storage, and handling costs, and is suitable for both intermittent and continuous application in micro-irrigation systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional fertilizers are added to irrigation water, then crop nutrient supply is improved, but plugging of micro-irrigation components occurs
Solution Approach 1:
The invention extracts and eliminates the harmful components (sulfate, phosphate, chloride, thiosulfate) from the fertilizer formulation, retaining only the beneficial potassium nutrient. This is achieved by using potassium formate as the sole fertilizer component, which provides potassium without the anions that cause plugging and precipitation in micro-irrigation systems.
Solution Approach 2:
The invention changes the chemical composition parameters of the fertilizer by substituting conventional potassium salts (potassium sulfate, potassium phosphate) with potassium formate. This parameter change eliminates the problematic anions while maintaining potassium nutrient delivery, thereby preventing plugging and precipitation issues.
2Quantity of substance
If conventional fertilizers are used, then potassium nutrients are delivered to crops, but shipping and handling costs increase due to extraneous constituents
Solution Approach 1:
The invention removes all extraneous constituents (sulfate, phosphate, chloride) that do not contribute to crop nutrition, leaving only potassium formate. This concentration of the active ingredient reduces the bulk weight and volume of fertilizer that needs to be shipped and handled, thereby reducing associated costs and energy consumption.
3Adaptability or versatility
If irrigation water contains high mineral content, then water source availability is maintained, but plugging and particulate formation increase
Solution Approach 1:
The invention converts the potential harm of using various water sources (wells, reservoirs, canals, lakes, rivers) with different mineral contents into a benefit by using potassium formate, which does not form insoluble salts or particulates with any of these water sources. The formate anion remains soluble and does not precipitate, allowing the use of diverse water sources without plugging risks.
Data Source
AI summary
An agricultural potassium-fertigation method for emitter-irrigation potassium fertigation feeds a potassium-nutrient feedstock comprised of potassium formate and water to an active emitter-irrigation system during one to all irrigation days during a crop cycle.