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13. september 2023 Irrigation

Hydroponic systems have revolutionized the way we cultivate plants by providing an efficient and innovative alternative to traditional soil-based agriculture. With hydroponics, plants are grown in a nutrient-rich water solution, allowing for optimized growth, increased yields, and precise control over environmental conditions. In this blog post, we will explore what hydroponic systems are and the numerous benefits they offer.

What are Hydroponic Systems?

Hydroponic systems are innovative methods of plant cultivation that eliminate the need for soil. Instead, plants are grown in a controlled environment using a water-based nutrient solution. This solution contains all the essential minerals and nutrients required for plant growth, ensuring optimal nourishment.

In hydroponics, the roots of the plants are directly exposed to the nutrient solution, allowing for efficient absorption of nutrients. To support the plants, various inert growing media such as perlite, coconut coir, or Rockwool are used to provide stability and aeration. The plants can be grown in containers, trays, or vertical systems, depending on the chosen hydroponic technique.

One of the key advantages of hydroponic systems is the precise control they offer over environmental factors. Parameters like light intensity, temperature, humidity, and nutrient composition can be fine-tuned to create an ideal growing environment. This level of control allows for accelerated plant growth, increased yields, and the ability to grow crops in any season.

 

Types of hydroponic systems

There are several different types of hydroponic systems, each with its own unique characteristics. Some of the most common types of hydroponic systems include:

Ebb and Flow Systems

The Ebb and Flow system is a hydroponic system that uses periodic flooding and draining of nutrient solution to provide water and nutrients to plants. In an Ebb and Flow system, plants sitting in pots filled with soil, perlite or coconut coir are placed in trays or containers. The nutrient solution is temporarily flooded into the tray, saturating the growing medium and providing water and nutrients to the plant roots. After a set period, the excess solution drains back into a reservoir, allowing the roots to access oxygen. This cyclic process of flooding and draining is controlled by a timer or automated system. Ebb and Flow systems are popular due to their simplicity, versatility, and ability to mimic natural irrigation cycles.

Graphic of how Ebb and Flow System works

Nutrient Film Technique (NFT)

The Nutrient Film Technique (NFT) is a hydroponic system where a thin film of nutrient-rich water flows over the plant roots. The roots are suspended in a sloping tray or gutter, allowing for continuous nutrient absorption and oxygenation. This technique is simple to set up and maintain, conserves water, and is suitable for growing plants with shallow root systems like leafy greens and herbs.

Nutrient Film Technique (NFT) to grow plants

Deep Water Culture (DWC)

Deep Water Culture (DWC) is a hydroponic system where plant roots are submerged in a nutrient solution. The plants are typically supported by floating platforms or net pots, allowing their roots to access the oxygen-rich solution. DWC is easy to set up and maintain, promotes efficient nutrient uptake, and is commonly used for cultivating various plants, especially leafy greens such as spinach, lettuce or kale. 

Deep Water Culture (DWC) to grow plants indoors

Wick System

The Wick System is a passive hydroponic system that uses a wick to deliver nutrient solution to the plant roots. The plant is placed in an inert growing medium, and a wick, usually made of a porous material like cotton or felt, connects the nutrient solution reservoir to the growing medium. The wick acts as a conduit, drawing the solution up to the roots through capillary action. The Wick System is easy to set up, requires no electricity or pumps, and is suitable for small-scale or low-maintenance hydroponic setups.

Graphic of wick system for plant grow

Drip Irrigation Systems

Drip irrigation systems deliver water directly to the plant roots through a network of tubing and emitters. These systems provide a slow and steady drip of water, allowing for precise and targeted watering. The emitters are strategically placed near the plants, ensuring that water is delivered directly to the root zone, minimizing evaporation and runoff. Drip irrigation systems are efficient in water usage as they provide controlled irrigation, reduce weed growth, and promote healthier plant growth. They are commonly used in gardens, farms, and landscapes to conserve water and optimize irrigation practices. Moreover, due to their unique properties, drip irrigation systems are a popular choice for cannabis cultivation. 

In a drip irrigation system, the products from Staal & Plast are often used to collect and reuse the water originating from the drip irrigation system making it an even more sustainable process. 

Graphic of drip irrigation system

Aeroponic Systems

Aeroponic systems are advanced hydroponic systems where plant roots are suspended in air, and nutrient-rich water is delivered as a fine mist or spray. The plants are typically supported by a structure that holds the roots in place, allowing them to access the nutrient solution. The misting or spraying of the solution ensures direct contact with the roots, promoting efficient nutrient absorption. Aeroponic systems offer rapid plant growth, efficient nutrient usage, and optimal oxygenation of the roots. They are commonly used for cultivating delicate plants, microgreens, and high-value crops.

Aeroponic System in greenhouse

Vertical Hydroponic Systems

Vertical hydroponic systems are innovative setups where plants are grown vertically, stacked on multiple levels. These systems utilize a combination of hydroponic techniques such as Ebb and Flood, nutrient film technique (NFT) or deep water culture (DWC) to provide optimal growing conditions for plants. By utilizing vertical space, these systems maximize the use of limited land or indoor areas. Vertical hydroponic systems offer high crop yields, and year-round cultivation capabilities, making them suitable for urban farming and maximizing production in limited spaces.

Vertical Farming System graphic

 

Choosing the Right Hydroponic System

Choosing the right hydroponic system requires careful consideration of several factors. Here are some key points to help you make an informed decision:

Decide on your plant selection

Consider the types of plants you intend to grow. Different plants have varying root structures and growth requirements. Some hydroponic systems are better suited for shallow-rooted plants like lettuce, while others can accommodate deep-rooted plants like tomatoes or peppers.

Consider your space availability

Consider the amount of space you have available for your hydroponic setup. For limited space you may consider a vertical hydroponic system whereas the Nutrient Film Technique (NFT) hydroponic system typically requires more space compared to other hydroponic systems.

Consider your water and nutrient management

Before investing in a hydroponic system, it is crucial to carefully consider water and nutrient management. Here are a few key points to keep in mind:

Water Quality

Assess the quality of your water source. The purity and pH of the water can have a significant impact on the success of your hydroponic system. Test your water for pH, mineral content, and contaminants to ensure it meets the requirements for hydroponic cultivation. If needed, invest in water treatment methods such as filtration or pH adjustment to optimize the water quality.

Nutrient Solution

Understand the composition and requirements of the nutrient solution for your chosen plants. Different plants have varying nutrient needs at different growth stages. Ensure you have a reliable source of quality hydroponic nutrients and understand how to properly mix and maintain the nutrient solution. Regularly monitor and adjust nutrient levels to prevent deficiencies or toxicities.

pH Management

pH plays a critical role in nutrient availability to plants. Most plants thrive in slightly acidic to neutral pH ranges. Invest in a pH testing kit and adjust the pH of your nutrient solution to the appropriate range for your plants. Regularly monitor and maintain the pH levels to avoid nutrient imbalances and potential plant health issues.

Watering Schedule

Develop a watering schedule that suits the specific needs of your plants and the hydroponic system you choose. Factors such as plant size, growth stage, temperature, and humidity influence the frequency and duration of watering. Strive for a balance between providing sufficient moisture to the roots while avoiding waterlogging. Automating the watering process with timers or employing techniques like drip irrigation can help ensure consistency and efficiency.

Nutrient Monitoring

Implement a system for monitoring nutrient levels in the solution. Regularly test the nutrient solution using appropriate tools to ensure that plants are receiving the optimal balance of essential minerals. Nutrient monitoring allows you to identify any imbalances or deficiencies early on and make necessary adjustments to maintain healthy plant growth.

System Maintenance

Proper maintenance of your hydroponic system is essential for water and nutrient management. Regularly clean and sanitize the system components to prevent the buildup of algae, pathogens or mineral deposits that can affect water quality and nutrient absorption. Inspect and maintain equipment such as pumps, filters, and irrigation systems to ensure their optimal functioning.

In general, considering water and nutrient management is crucial for the success of your hydroponic venture. By understanding the water quality, mastering nutrient solution preparation, managing pH levels, developing an appropriate watering schedule, monitoring nutrient levels, and maintaining the system, you can create an optimal growing environment that supports healthy plant growth and maximizes your hydroponic yields.

 

Consider the efficiency of resource utilization

When considering the efficiency of resource utilization in hydroponics, here are some important factors to keep in mind:

Water Efficiency

Evaluate the water requirements of different hydroponic systems. Look for systems that minimize water consumption by delivering water directly to the roots or utilizing recirculating systems. Consider water-saving techniques such as using timers, sensors, or drip irrigation to ensure efficient water usage. Additionally, explore water recycling or rainwater harvesting methods to further enhance water efficiency.

Nutrient Efficiency

Choose nutrient solutions that are specifically formulated for hydroponic use. These solutions are designed to provide the necessary nutrients in optimal ratios for plant growth. Follow recommended guidelines for nutrient concentrations and adjust as needed based on plant requirements. Regularly monitor nutrient levels and pH to prevent wastage and ensure efficient nutrient uptake by the plants.

Energy Efficiency

Consider the energy requirements of your hydroponic system. Opt for energy-efficient equipment, such as LED grow lights, which consume less electricity compared to traditional lighting systems. Utilize timers or automated controls to regulate lighting and irrigation cycles and avoid unnecessary energy consumption. Additionally, explore renewable energy sources such as solar panels to power your system, further enhancing energy efficiency.

Crop Selection

Select crops that are well-suited for hydroponic cultivation. Certain plants, such as leafy greens and herbs, tend to thrive in hydroponic systems and have high yields. By choosing crops that have a natural affinity for hydroponics, you can maximize resource efficiency and achieve better overall results.

Monitoring and Management

Regularly monitor and manage your hydroponic system to ensure optimal resource utilization. This includes monitoring water levels, nutrient concentrations, pH levels, and overall system health. Implementing automated monitoring systems or using digital tools can aid in efficient resource management by providing real-time data and alerts for timely adjustments.

 

Consider your budget

When considering your budget for a hydroponic system, there are several aspects to take into account:

Initial Investment

Assess the upfront costs associated with setting up the hydroponic system. This includes purchasing equipment such as grow lights, containers, pumps, nutrient solutions, pH meters, and other necessary components. Research different options and compare prices to find a system that fits within your budget.

Infrastructure Costs

Consider any infrastructure modifications or investments required for your hydroponic setup. This may include setting up a dedicated space with proper ventilation, electrical outlets, plumbing connections, or installing a greenhouse or grow tent. Take into account any additional costs associated with these infrastructure requirements.

Operational Expenses

Evaluate the ongoing operational expenses associated with running a hydroponic system. This includes costs for electricity to power lights, pumps, or climate control systems, as well as the regular purchase of nutrient solutions, growing media, and other consumables. Factor in these recurring expenses to understand the long-term financial commitment.

Maintenance and Upkeep

Budget for the maintenance and upkeep of your hydroponic system. This may include routine cleaning, replacement of worn-out components, calibration of pH and nutrient meters, and general repairs. Consider the time, effort, and costs involved in maintaining the system to ensure its optimal functioning.

Return on Investment (ROI)

Assess the potential return on investment (ROI) from your hydroponic system. Consider factors such as the crop yield, market prices for your produce, and the potential savings compared to purchasing similar produce from external sources. Calculate the potential financial benefits over time to gauge the ROI and determine the viability of your investment.

Scalability

Keep in mind the scalability of your hydroponic operation. If you plan to expand or increase production in the future, consider how your budget may need to accommodate additional equipment, infrastructure, or operational costs associated with scaling up your system.

By carefully considering your budget, you can make informed decisions about the initial investment, ongoing expenses, and potential returns from your hydroponic system. This allows you to plan and allocate your financial resources effectively, ensuring a sustainable and economically viable venture.

 

Benefits of Hydroponic Systems 

Hydroponic systems have gained significant attention in the world of agriculture due to their numerous benefits and potential for sustainable food production. By providing an alternative to traditional soil-based farming, hydroponics offers unique advantages that can revolutionize the way we grow crops. From water efficiency and increased crop yield to space utilization and reduced environmental impact, hydroponic systems are transforming the landscape of modern agriculture. In this section, we will explore some of the key benefits of hydroponic systems, shedding light on why this innovative approach to cultivation is garnering attention and gaining popularity worldwide. Here are some of the main benefits of hydroponic systems:

Water Efficiency

Hydroponic systems use up to 90% less water compared to traditional soil-based agriculture. Water is recirculated within the system, minimizing wastage and allowing for efficient nutrient absorption by plants.

Increased Crop Yield

Hydroponic systems provide optimal growing conditions, allowing plants to grow faster and produce higher yields compared to traditional farming methods. By controlling factors such as nutrient delivery, lighting, and climate, hydroponics maximizes the growth potential of plants.

Year-Round Cultivation

Hydroponic systems enable year-round cultivation regardless of seasonal limitations. With controlled environments, growers can manipulate temperature, light cycles, and other conditions to create optimal growing conditions throughout the year.

Space Efficiency

Hydroponic systems are designed to maximize space utilization. Vertical hydroponics, in particular, allows for stacking plants vertically, making efficient use of limited floor space. This is especially advantageous in urban areas or areas with limited land availability.

Reduced Pesticide Use

Hydroponic systems are less prone to pest infestations compared to traditional soil-based farming. The controlled environment reduces the need for pesticides, making hydroponics a more environmentally friendly and sustainable method of cultivation.

Flexibility in Location

Hydroponic systems can be set up in various locations, including urban areas, rooftops, or indoor spaces. This flexibility allows for local food production, reducing the carbon footprint associated with transportation and enabling fresh produce to be grown closer to consumers.

Consistent Crop Quality

With precise control over nutrient delivery, lighting, and environmental conditions, hydroponic systems produce consistent crop quality. This is especially important for commercial growers aiming to supply high-quality produce to markets or restaurants.

Reduced Soil Erosion and Environmental Impact

Hydroponics eliminates the need for soil, reducing soil erosion and degradation. It also reduces the risk of nutrient leaching and runoff, minimizing the environmental impact on nearby water bodies.

Efficient Nutrient Delivery

Hydroponic systems deliver nutrients directly to the plant roots, ensuring efficient absorption and minimizing nutrient wastage. This results in healthier plants and improved nutrient utilization.

Educational Opportunities

Hydroponics offers educational opportunities for students and researchers to study plant growth, nutrient management, and sustainable agricultural practices. It provides a hands-on learning experience and promotes innovation in the field of agriculture.


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14. august 2023 Irrigation

Ebb & Flow systems, also known as a Flood and Drain hydroponic systems, have gained widespread popularity for their simplicity, effectiveness, and ability to mimic natural irrigation cycles. Whether you’re a seasoned hydroponic grower or just starting your green-fingered journey, this guide will equip you with the knowledge to excel in flood and drain hydroponics.

In this blog post, we will take you on a journey into the world of Ebb & Flow systems, exploring the science behind this popular hydroponic technique and providing step-by-step insights on how to set up and manage your own flood and drain system.

What is an ebb & flow system?

An ebb & flow hydroponics system is a setup that periodically floods and drains the plant roots with a nutrient-rich solution. The system involves placing plants in pots filled with soil, perlite, or coconut coir, which are then set in ebb and flow trays or containers. A pump is used to flood the tray with the nutrient solution, saturating the growing medium and providing water and nutrients to the plant roots. After a set period, the excess solution is drained back into a reservoir, allowing the roots to access oxygen. 

The cyclic process of flooding and draining is controlled by a timer or automated system. This controlled irrigation mimics natural irrigation cycles, promoting healthy plant growth. Ebb & Flow systems are popular in hydroponics due to their simplicity, effectiveness, and the ability to provide plants with periodic nutrient replenishment and aeration. They are used to cultivate a wide range of plants, from small herbs to larger vegetables, and are well-suited for both small-scale home gardening and larger commercial setups.

How does an ebb & flow system work?

An ebb & flow system works by providing periodic cycles of flooding and draining to deliver water and nutrients to plant roots in a hydroponic setup. Here’s how it works:

Ebb and Flow System

  • Setup: The Ebb & Flow system typically consists of a watertight tray or container where the plants are placed. Each plant is usually grown in its individual pot or container within the tray. 
  • Reservoir: The system includes a reservoir that holds the nutrient solution, which is a mixture of water and essential nutrients required for plant growth.
  • Pump: A water pump is used to flood the growing tray with the nutrient solution. The pump is usually controlled by a timer or an automated system.
  • Flooding Phase: During the flooding phase, the pump is activated, and the nutrient solution is pumped into the growing tray. The growing medium absorbs the solution, saturating the plant roots and providing them with water and essential nutrients.
  • Nutrient Uptake: As the nutrient solution floods the tray, the plant roots absorb the required nutrients directly from the solution.
  • Draining Phase: After a predetermined period, the pump stops, and the excess nutrient solution in the tray drains back into the reservoir. The draining process is typically facilitated by gravity or through the use of a drainage system.
  • Aeration: As the nutrient solution drains from the tray, the plant roots are exposed to air, allowing them to access oxygen necessary for respiration and root health.
  • Cyclic Process: The flooding and draining process continues in cycles, usually repeating every few hours. The frequency and duration of these cycles depend on the specific requirements of the plants being grown and factors such as temperature, humidity, and growth stage.

By employing this cyclic process of flooding and draining, the Ebb & Flow system ensures that plants receive an adequate supply of water and nutrients while preventing waterlogging and promoting oxygenation of the root zone. This controlled irrigation allows for optimal plant growth and makes Ebb & Flow systems a popular choice in hydroponic cultivation for various types of plants, from herbs and leafy greens to larger vegetables and flowering crops.

Benefits of using an ebb & flow system

There are several benefits of using an ebb & flow system. Some of the benefits include:

    • Efficient water usage: The Ebb & Flow system provides controlled irrigation, ensuring that plants receive water only when needed. This efficient water usage reduces wastage and promotes water conservation, making it a sustainable choice for gardening.
    • Optimal nutrient delivery: The periodic flooding of nutrient-rich water directly to the plant roots ensures efficient nutrient absorption. This targeted nutrient delivery enhances plant growth and minimizes nutrient wastage, leading to healthier and more productive crops.
    • Low maintenance: Ebb & Flow systems are relatively easy to set up and maintain. Once properly installed, the system operates automatically through timers or automated controls, reducing the need for constant monitoring and labor-intensive maintenance.
    • Low cost: The setup cost of an ebb and flow system is fairly affordable. The cost can vary based on its size and additional features. 
    • Versatility: Ebb & Flow systems can be used to grow a wide variety of plants, from small herbs to larger vegetables. The system’s flexibility makes it suitable for both home gardeners and commercial growers, catering to diverse cultivation needs.
    • Scalability: The system’s scalability allows growers to expand their operations easily. Additional trays or containers can be added to accommodate more plants without major modifications to the setup.

Overall, the benefits of using an Ebb & Flow system make it an attractive choice for hydroponic growers seeking an efficient, versatile, and productive method for cultivating a wide range of plants with minimal water and nutrient wastage.


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13. august 2023 Irrigation

Drip irrigation systems are a popular choice among gardeners and farmers alike, offering numerous benefits over traditional watering techniques. From conserving water and reducing weed growth to promoting healthier plant growth and increased crop yields, drip irrigation is a game-changer in modern agriculture.

Join us as we uncover the inner workings of drip irrigation systems, understand their components, learn how to set up and customize them for various plant types, and explore tips to maximize their efficiency. Whether you’re a seasoned gardener or just starting your green journey, this guide will equip you with the knowledge and tools to optimize your watering practices and achieve bountiful and thriving gardens.

What is a drip irrigation system?

A drip irrigation system is a method of watering plants by delivering water directly to the roots through a network of tubes, pipes, and emitters. In this system, water is released in small, controlled drips or drops at or near the base of each plant, providing a slow and steady supply of water and nutrients to the root zone.

The drip irrigation system is designed to minimize water wastage and promote efficient water usage by reducing evaporation and runoff. It can be tailored to suit different types of plants and terrains, making it suitable for a wide range of agricultural, horticultural, and landscaping applications.

Drip irrigation offers several advantages, including water conservation, reduced weed growth, improved plant health, and higher crop yields. Its precise and targeted water delivery helps optimize plant growth while minimizing water usage, making it an environmentally friendly and sustainable watering solution.

How does a drip irrigation system work?

A drip irrigation system works by delivering water directly to the roots of plants in a controlled and precise manner. Here’s how it operates:

Graphic of drip irrigation system

  • Water source: The system is connected to a water source, which could be a water faucet, a water tank, or a larger water distribution network, where the drip water is mixed with nutritients.
  • Mainline tubing: The water flows through a mainline tubing that distributes it from the water source to the various sections of the garden or field.
  • Sub-main or distribution tubing: The mainline tubing is connected to sub-main or distribution tubing, which runs along the rows of plants or crop beds.
  • Drippers or emitters: Drippers or emitters are attached to the distribution tubing at specific intervals, near the base of each plant. These emitters release water in controlled drips or drops, delivering it directly to the root zone of the plants.
  • Filter and pressure regulator: A filter is often incorporated into the system to prevent clogging of the emitters by debris and sediment. Additionally, a pressure regulator may be used to maintain a consistent water pressure throughout the system.
  • Gravity or pressure: The water is distributed through the system either by gravity, in the case of a lower pressure system, or with the assistance of a water pump for higher pressure systems.
  • Microtubing (optional): In some cases, microtubing may be used to extend the water delivery to individual plants, allowing for more precise placement of the water source.
  • Timers and automation (optional): Some drip irrigation systems may include timers or automated controllers. These devices allow you to set specific watering schedules, ensuring that the plants receive the right amount of water at the right times.

In this process, any excess water can be collected in trays from Staal & Plast and reused later, enhancing the overall efficiency and sustainability of the system.

Benefits of using drip irrigation

Using drip irrigation offers a wide range of benefits for agricultural, horticultural, and landscaping applications:

  • Water conservation: Drip irrigation is highly efficient in water usage as it delivers water directly to the plant roots. This precision watering minimizes water wastage through evaporation and runoff, conserving this valuable resource. According to some sources the drip irrigation systems use 30-60% less water than an overhead system. 
  • Reduced weed growth: By delivering water only to the plant roots, drip irrigation prevents water from reaching the areas between plants where weeds typically grow. This helps in reducing weed competition and the need for herbicides.
  • Improved plant health: Drip irrigation provides a consistent and controlled water supply, promoting healthier plant growth. With water delivered directly to the root zone, plants can access moisture and nutrients efficiently, reducing stress and the risk of water-related diseases.
  • Higher crop yields: The optimized water delivery and nutrient absorption in drip irrigation systems result in improved plant growth and higher crop yields compared to traditional irrigation methods.
  • Versatility: Drip irrigation systems can be tailored to suit various crops, plants, and terrains. They are equally effective in large-scale agriculture, greenhouse cultivation, and home gardens.
  • Soil erosion prevention: The slow and targeted water application in drip irrigation reduces the impact of water on the soil surface, preventing erosion and soil degradation.
  • Lower energy consumption: Drip irrigation systems generally require lower water pressure compared to other irrigation methods, leading to reduced energy consumption, especially when using gravity-fed systems.
  • Sustainable farming: By conserving water, minimizing chemical usage, and promoting plant health, drip irrigation contributes to sustainable and eco-friendly agricultural practices. For example the drip irrigation systems from Staal & Plast are often used to collect and reuse the water originating from the drip irrigation system making it an even more sustainable process. 
  • Easy automation: Drip irrigation systems can be easily automated with timers or controllers, allowing for precise and consistent watering schedules without constant supervision.
  • Reduced labor: Once set up, drip irrigation systems require minimal maintenance and labor, saving time and resources for farmers and gardeners. Other systems such as Ebb & Flow are even less labor-intensive than the drip irrigation system due to their potential for automation, targeted nutrient delivery directly to plant roots during flooding, simplified planting procedures, and reduced weed management requirements, making them an efficient choice for growers seeking to minimize labor while ensuring healthy plant growth.
  • Scalability: Drip irrigation systems can be expanded or modified to accommodate changing agricultural or gardening needs.

Overall, the numerous benefits of drip irrigation make it a popular choice for growers seeking efficient water usage, improved plant health, and higher yields while promoting sustainable and environmentally responsible practices. You can read more about other hydroponic systems in our news section on the website. 


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HEADQUATERS & PRODUCTION
Stål & Plast A/S​
Industrivej 19
DK-5750 Ringe
Denmark

Phone: +45 62 62 12 16
Mail: sales@staal-plast.dk

se kort
se kort

DENMARK

PRODUCTION
Staal & Plast USA Inc

421 North California street
Building 6b
Sycamore IL 60178, United States

USA

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