Sub-irrigation Pipe Alignment for Uniform Root Watering
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Solution Overview
Problem
Traditional irrigation methods, such as surface and overhead irrigation, are inefficient and wasteful, especially in clay soils, and sub-irrigation methods face issues with random pipe placement and excessive water usage, leading to high costs and environmental contamination.
Innovation Solution
A sub-irrigation method where perforated pipes are laid parallel to each other at a regular pitch, with seed positions aligned to match the pipe positions, using GPS technology for precise placement, ensuring water and fertilizers reach plant roots without saturating the soil, allowing for reduced water use and improved drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional surface irrigation is used, then water is applied to the entire field surface, but water percolation and evaporation cause low irrigation efficiency and high water consumption
Solution Approach 1:
The irrigation system segments water delivery by installing perforated pipes at specific depths below the soil surface, creating localized infiltration zones. This divides the continuous surface water application into discrete, controlled points of water entry, reducing unnecessary water movement across the entire field and minimizing percolation and evaporation losses.
Solution Approach 2:
The perforated pipes act as an intermediary between the water source and the soil, controlling water release at regulated depths. This intermediary structure enables precise water delivery directly to root zones, eliminating the inefficiencies of surface water distribution and reducing both water consumption and energy loss.
2Loss of energy
If sub-irrigation with random pipe distribution is used, then water is delivered underground, but pipes are placed without regard to plant row positions, requiring water distribution until full field capacity is reached
Solution Approach 1:
The system performs preliminary action by pre-positioning perforated pipes at calculated locations that correspond to future plant row positions before sowing occurs. This advance placement, guided by GPS technology, ensures pipes are optimally located to serve plant roots directly, eliminating the need to pump excessive water to reach full field capacity.
Solution Approach 2:
The system uses GPS technology to provide feedback on pipe positions and correlates this with planned plant row positions. This feedback mechanism enables precise alignment between irrigation infrastructure and crop locations, ensuring water is delivered exactly where needed and minimizing both water quantity required and pumping energy consumption.
3Ease of operation
If pipes are laid randomly in the ground, then sub-irrigation can be implemented, but the position of pipes is unrelated to subsequent seed rows, requiring excessive water to reach all plant roots
Solution Approach 1:
The system performs preliminary action by pre-positioning perforated pipes at calculated locations that correspond to future plant row positions before sowing occurs. This advance placement, guided by GPS technology, ensures pipes are optimally located to serve plant roots directly, eliminating the need to pump excessive water to reach full field capacity.
Solution Approach 2:
The system replaces traditional mechanical surveying and positioning methods with GPS technology for determining pipe and plant row positions. This substitution enables precise, repeatable positioning without complex mechanical measurement systems, making the irrigation implementation easier while dramatically reducing water volume requirements through accurate pipe-to-plant alignment.
4Reliability
If full field capacity is reached through pumping, then all ground is saturated, but additional water cannot drain and penetrates into the ground, stagnating or running off on the surface
Solution Approach 1:
The system applies local quality by delivering water at specific localized depths through perforated pipes positioned in the subsoil rather than saturating the entire field surface. This localized water delivery maintains unsaturated conditions in the upper soil profile, preserving drainage capacity and preventing surface water stagnation and runoff while ensuring reliable water supply to root zones.
5Quantity of substance
If fertiliser or nutrients are enriched in pumped water, then plants receive nutrients, but excessive quantities are added to reach full field capacity, causing dispersion to the aquifer and environmental contamination
Solution Approach 1:
The system segments nutrient delivery by injecting fertiliser or nutrients into the water flow at specific perforated pipe locations rather than mixing excessive quantities into bulk water for full field saturation. This segmented approach delivers precise nutrient quantities directly to root zones, reducing overall fertiliser quantity required and preventing environmental contamination through aquifer dispersion.
Solution Approach 2:
The system uses GPS positioning to copy the spatial pattern of plant rows into the placement of perforated pipes, ensuring precise alignment between water/nutrient delivery points and plant locations. This copying mechanism enables accurate targeting of nutrient delivery, minimizing the quantity of fertiliser needed and preventing harmful dispersion to the environment.
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
This method ensures uniform plant growth, reduces water and energy costs, minimizes chemical use and environmental pollution, and maintains soil porosity for effective rainwater drainage, while eliminating the need for ploughing and reducing labor costs.
Implementation Method 1
The water flows from the tank to the pipes and permeates through the porous wall of said pipes
Implementation Method 2
moves up through the soil by infiltration and capillarity, reaching the plant roots from below
Data Source
Figure 1a~2
Figure 3~4
AI summary
The present invention concerns the agricultural sector. In particular, the invention concerns a sub-irrigation method for crops sown in rows, comprising the steps of: - laying, below agricultural soil (1), parallel to one another and at a regular pitch (P), a plurality of perforated pipes (2) for the underground distribution of water; - sowing seeds (3) in parallel rows in said agricultural soil (1); - feeding water into said perforated pipes (2); characterised in that said step of laying, below agricultural soil (1), a plurality of perforated pipes (2) parallel to one another and at a regular pitch (P) for the underground distribution of water, comprises the step of storing the position of said perforated pipes (2) and in that said step of sowing the seeds (3) in parallel rows comprises the prior step of identifying the position of said pipes (2) and the subsequent step of sowing the seeds (3) over said pipes, maintaining the same regular pitch (P), so that the water distributed by sub-irrigation reaches the roots of plants (4) that have grown from said seeds (3) without totally saturating the agricultural soil (1) between said pipes (2).