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Bibhuti Bhusan Sahoo
Sagar Maitra
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Chapter
ABSTRACT
Vertic
prominence in recent years due to its potential to address key challenges in
food production, resource utilization, and sustainability. The importance of
vertical farming in addressing food security concerns, particularly in densely
populated urban areas, is emphasized, along with its role in reducing food
chapter focuses on the technological advances that have propelled vertical
farming forward. Automation and robotics are showcased as transformative
managing crops. Environmental control systems are highlighted for their role
in creating optimal growing conditions while reducing resource consumption
and environmental impact. Nutrient management practices, including
hydroponics and closed-loop systems, are explored as essential components
of sustainable vertical farming. Crop selection and breeding strategies are
discussed in the context of optimizing crop varieties for vertical farming
controlled conditions is examined. The literature addresses the challenges
include high initial investment costs, energy consumption, and operational
expenses, while prospects include technological advancements, integration
food production, particularly in urban environments where food security and
resource conservation are paramount.
Keywords: Urban agriculture, Sustainable farming, Crop breeding, Automation,
Nutrient management
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18.1 Introduction
traditional farming methods by growing crops in vertically stacked layers
or vertically inclined surfaces, often within controlled indoor environments
(Despommier, 1999; Billah et al. 2021). This innovative approach employs
advanced technologies, including hydroponics, aeroponics, and aquaponics, to
optimize resource utilization and crop production in limited spaces. In vertical
farms, plants receive precise amounts of light, nutrients, and environmental
conditions, resulting in enhanced growth rates and year-round cultivation
possibilities.
The concept of vertical farming emerged as a response to the growing challenges
facing traditional agriculture, such as land scarcity, water shortages, climate
change, and the need to feed an ever-increasing global population (Foley
et al. 2011; Sahoo et al. 2023). By capitalizing on vertical space and reducing
address these issues while minimizing the environmental impact associated
with conventional agriculture.
employing closed-loop hydroponic or aeroponic systems and decrease the
need for chemical fertilizers and pesticides (Banerjee et al. 2022). Controlled
indoor environments allow for year-round crop production, eliminating the
limitations imposed by seasonal variations and adverse weather conditions.
Vertical farming enables agriculture in urban areas and on marginal lands,
conserving valuable arable land for other purposes and reducing the need
for long-distance transportation of food. Precise control over environmental
factors leads to higher-quality crops with fewer blemishes and consistent
a dependable and localized source of fresh produce, reducing the vulnerability
of food supply chains to disruptions (FAO, 2017).
driven by advancements in technology and a growing awareness of the need
for sustainable agriculture. Although the roots of vertical farming can be
traced back to ancient hanging gardens and multilayered terrace farming, the
modern era of vertical farming began to take shape in the late 20th century and
has continued to evolve. The concept of vertical farming gained prominence
with the visionary ideas of Dr. Dickson Despommier, a professor at Columbia
University. His 1999 publication, “The Vertical Farm: Feeding the World in the
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21st Century,” laid the foundation for contemporary discussions on the topic.
Experimental vertical farming projects started during the year 2000, primarily
faced technical challenges and high operational costs. During mid-2000s,
technological advancements in LED lighting, automation, and hydroponic
systems began to make vertical farming more economically viable. The
over plant growth. The vertical farming industry experienced rapid growth,
with numerous startups and established companies investing in research and
development. Commercial vertical farms began producing a wide range of
crops, including leafy greens, herbs, and even small fruits. Presently vertical
farming has become a global industry with a diverse range of crops, including
18.2 Vertical Farming Systems
Vertical farming encompasses a range of innovative cultivation systems
systems, such as Nutrient Film Technique (NFT), Deep Water Culture (DWC),
and aeroponics, form the backbone of these systems. These methods involve
growing plants without soil, with nutrient-rich water solutions delivering
essential nutrients directly to the roots. Furthermore, aquaponics integrates
a wide variety of crops while minimizing water usage and environmental
impact.
18.2.1 Hydroponic Systems
Hydroponic systems are at the forefront of modern agriculture, revolutionizing
the way we grow crops by eliminating the need for soil and allowing plants
production. In this section, it is delve into hydroponic systems, their various
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essential nutrients. The excess nutrient solution then returns to a reservoir
for recirculation. This method optimizes nutrient delivery and oxygenation,
strawberries.
In DWC, plants are suspended in a nutrient solution with their roots submerged.
adequate oxygenation. DWC systems are commonly used for growing larger
plants such as tomatoes and cucumbers (Savvas and Gruda, 2018).
(iii) Aeroponics
Aeroponic systems suspend plants in the air and deliver nutrients through
for cultivating delicate herbs and leafy greens (Raviv et al. 2019).
consumption compared to traditional soil-based farming, making it an
environmentally friendly choice in regions facing water scarcity (Goddek
et al. 2015). With hydroponics, crops can be grown year-round in controlled
indoor environments, independent of seasonal variations and adverse
weather conditions. Precise control over nutrient delivery, pH levels, and
environmental factors results in faster growth and higher crop yields. Soil-
borne pests and diseases are minimized in hydroponic systems, reducing the
need for chemical pesticides (Savvas and Gruda, 2018). Hydroponic systems
are also well-suited for vertical farming, enabling the cultivation of crops in
stacked layers, and saving valuable space (Raviv et al. 2019).
Hydroponic systems are a fundamental component of modern agriculture,
change, and increasing food demand. These systems continue to evolve
and diversify, contributing to the advancement of vertical farming and the
production.
Aquaponic systems represent an innovative and sustainable approach to
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potential to revolutionize food production.
(i) Components of aquaponic systems
Fish tanks
waste into the water.
Grow beds
as gravel or expanded clay pellets) where plants are cultivated. These beds
Pumps and plumbing
beds, allowing plants to absorb nutrients. Plumbing systems ensure the proper
which serve as a nutrient source for plants.
to 90% less water than traditional soil-based farming for the same crop yield
(Love et al. 2015). The closed-loop nature of aquaponics minimizes the need for
chemical fertilizers. Fish waste provides an organic and nutrient-rich source
for plant growth. Aquaponic systems can operate year-round in controlled
plant cultivation, aquaponics reduces greenhouse gas emissions and mitigates
et al. 2016). Aquaponic
systems also can support a variety of crops, including leafy greens, herbs, and
even fruiting plants like tomatoes and peppers.
the demand for locally sourced, fresh produce continues to grow, aquaponics
represents a promising avenue for meeting these needs while minimizing
environmental impact.
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18.2.3 Aeroponic Systems
where plants are grown without the need for soil or traditional hydroponic
for its potential to revolutionize modern agriculture. Some of the key features
of aeroponic systems—
: In aeroponics, plant roots are exposed to air
and periodic misting, ensuring they receive ample oxygen. This oxygenation
enhances nutrient absorption and promotes rapid growth.
Precise nutrient delivery: Nutrient-rich water is delivered directly to the roots
Minimal water usage
Reduced disease and pest pressure: Since plants are grown in a soilless
environment, there is a reduced risk of soil-borne diseases and pests, reducing
the need for chemical pesticides.
18.2.4 Tower Gardens
Tower gardens, also known as vertical aeroponic systems, have gained
range of crops. These innovative systems are designed to maximize vertical
space by growing plants in stacked layers while utilizing aeroponics—a
method where plant roots are suspended in air and receive nutrient-rich
Some of the key features of tower gardens —
Vertical growing
them suitable for small spaces, balconies, and urban environments.
Aeroponics: Plants in tower gardens receive a nutrient-rich mist or aerosol at
regular intervals, providing precise nutrient delivery and optimal oxygenation
to the roots.
Modularity: Tower gardens are often modular, allowing for easy expansion or
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compared to traditional soil-based gardening or hydroponics.
As the world faces challenges related to food security, environmental
manner aligns with the goals of reducing resource consumption and promoting
local and fresh food production.
18.3 Automation and Robotics
Automation plays a pivotal role in revolutionizing vertical farming by
the cultivation process. This section delves into the multifaceted contributions
agriculture.
18.3.1 Automated Planting and Transplanting
Automation streamlines the planting and transplanting processes, reducing
labor-intensive tasks and ensuring uniformity in crop spacing and depth.
Advanced machines equipped with computer vision and robotic arms can
precisely plant seeds or transplant seedlings into growing media. This not
only accelerates the cultivation cycle but also minimizes human error. As a
result, vertical farms can achieve consistent and optimal plant density, leading
to improved crop health and yields.
18.3.2 Robotic Crop Management
Robotic systems are increasingly employed for crop management in vertical
farms. These robots can autonomously navigate growing environments,
monitoring plant health, nutrient levels, and environmental conditions in real
time. Equipped with sensors and AI algorithms, they can detect and respond
capabilities enhance the overall health of the crops while reducing the need
for manual inspections and interventions, contributing to sustainable and
18.3.3 AI and Machine Learning in Crop Monitoring
tools in vertical farming. These technologies enable predictive analytics based
on historical and real-time data, allowing growers to anticipate and address
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potential challenges. AI-driven systems can optimize lighting, nutrient
delivery, and climate control, adjusting parameters to maximize crop growth
improvement.
Automation in vertical farming represents a transformative shift toward
automating tasks from planting to crop management and leveraging AI and
machine learning for data-driven decision-making, vertical farms can achieve
higher yields, reduced resource consumption, and greater resilience in the face
of environmental challenges.
18.4 Environmental Control and Sustainability
Environmental control is a cornerstone of vertical farming, allowing for the
precise management of factors like temperature, humidity, lighting, and air
quality. This section explores how these controlled environments contribute to
environmental impact.
18.4.1 Controlled Environment Agriculture (CEA)
Controlled Environment Agriculture, or CEA, is the practice of optimizing
growing conditions within enclosed structures. In vertical farming, CEA
systems enable the adjustment of environmental parameters to meet the
et al.
2021).
18.4.2 Climate Control and HVAC Systems
HVAC (Heating, Ventilation, and Air Conditioning) systems are crucial
components of vertical farming. They regulate temperature and humidity
to create ideal conditions for plant growth. These systems not only ensure
crop health but also reduce energy consumption by maintaining stable
environmental conditions.
18.4.3 LED Lighting Technology
the right spectrum of light for photosynthesis while minimizing wasted energy
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in the form of heat. Their longevity and reduced energy consumption make
them environmentally sustainable and economically viable.
18.4.4
Vertical farms are increasingly adopting sustainable practices to reduce their
solar panels, can further reduce the environmental impact of vertical farming
operations. Moreover, closed-loop water systems in some vertical farms
minimize water usage and reduce the release of nutrients into the environment.
The integration of environmental control systems in vertical farming not
only ensures optimal crop growth but also promotes sustainability in
agriculture. By reducing resource waste, minimizing environmental impact,
system.
18.5 Nutrient Management
Nutrient management is a critical aspect of vertical farming, ensuring that
plants receive the essential nutrients they need for healthy growth while
minimizing waste and environmental impact. This section explores the
strategies and practices employed in vertical farming to optimize nutrient
18.5.1 Hydroponic and Aeroponic Systems
Vertical farms often utilize hydroponic and aeroponic systems that deliver
nutrients directly to plant roots through water or mist. These systems allow
precise control over nutrient composition, concentration, and delivery,
18.5.2 Recirculating Nutrient Solutions
To reduce resource consumption, many vertical farms implement recirculating
nutrient solutions. Instead of continuously supplying fresh nutrient solutions,
these systems recirculate and replenish the existing solutions. This approach
minimizes water usage and nutrient waste while maintaining optimal plant
nutrition (Goddek et al. 2016).
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18.5.3 Closed-Loop Systems
Closed-loop systems in vertical farming aim to capture and reuse nutrients
nutrient discharge into the environment (Goddek et al. 2015).
18.5.4 Precision Nutrient Monitoring
Vertical farms leverage sensor technologies and data analytics to monitor
in nutrient solutions and automatically adjust the nutrient composition to
meet plant requirements. Precision nutrient management ensures optimal
18.5.5 Organic and Sustainable Nutrient Sources
In pursuit of sustainability, some vertical farms explore organic and sustainable
nutrient sources. These include compost teas, organic fertilizers, and nutrient
solutions derived from organic materials. These alternatives reduce reliance
on synthetic chemicals and promote environmentally friendly nutrient
management (Raviv et al. 2019).
Nutrient management is a fundamental practice in vertical farming that
By adopting advanced technologies, closed-loop systems, and precision
monitoring, vertical farms can optimize nutrient utilization, reduce
environmental impact, and support the production of fresh and healthy crops
year-round.
18.6 Crop Selection and Breeding
the suitability of crops for controlled environments and their potential for
selection and breeding in vertical farming, with an emphasis on crop varieties
tailored for vertical growing conditions.
18.6.1 Crop Selection for Vertical Farming
High-value crops: Vertical farms often prioritize high-value crops, such as
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a favorable economic return due to their short growth cycles and consumer
demand for fresh, locally sourced produce (Niu et al. 2017).
Crop adaptability: The adaptability of crops to controlled environments is
well-suited for vertical farming due to their adaptability to these conditions.
Nutrient requirements: Crops with nutrient requirements that align with the
nutrient delivery systems used in vertical farming, such as hydroponics or
aeroponics, are ideal choices. These systems allow precise control over nutrient
composition and concentration (Santosh and Gaikwad, 2022).
18.6.2
Varietal selection: Vertical farmers often select crop varieties optimized for
indoor and controlled environments. These varieties may exhibit traits such as
compact growth, high yields, resistance to pests and diseases, and enhanced
(Hickey et al. 2017).
to optimize crop performance in controlled environments.
Crop diversity: Maintaining crop diversity is essential to avoid genetic
vulnerability and maintain food security. Vertical farms often cultivate a
diverse range of crops to ensure a variety of fresh produce is available.
Crop selection and breeding are instrumental in maximizing the potential of
vertical farming. The choice of suitable crops and the development of varieties
and economic viability of vertical farming systems.
18.7 Vertical Farming in Urban Environments
Vertical farming has emerged as a promising solution to the challenges of
food production in densely populated urban areas. This section explores the
to address issues related to food security, sustainability, and localized food
production.
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18.7.1 Food Security in Urban Areas
Reducing food miles: Vertical farming allows for the cultivation of fresh
produce within or near urban centers, reducing the distance food must travel
from farm to table. This not only decreases carbon emissions associated with
transportation but also ensures a consistent supply of fresh and nutritious
food.
Year-round production: Controlled environments in vertical farms enable
year-round crop cultivation, reducing dependence on seasonal availability
and external food sources. Urban populations can access a diverse range of
fresh produce regardless of weather conditions.
18.7.2
Optimized resource use
minimizing land use, conserving water, and optimizing energy consumption.
Reduced environmental impact: By reducing the need for extensive land
conversion and minimizing the use of chemical pesticides and fertilizers,
vertical farming contributes to a smaller ecological footprint in urban areas.
18.7.3 Localized Food Production
Community and rooftop gardens: Vertical farming techniques can be adapted
to various urban spaces, including rooftops, vacant lots, and indoor structures.
Community gardens and rooftop farms empower urban residents to participate
in food production and foster a sense of food sovereignty.
Urban agriculture initiatives: Many cities are promoting urban agriculture
initiatives, including vertical farming, to increase access to fresh food, create
local jobs, and enhance the resilience of urban food systems.
Vertical farming holds immense potential for addressing food security and
sustainability challenges in urban environments. Its ability to produce
fresh, locally sourced food year-round, while optimizing resource use and
reducing environmental impact, aligns with the goals of creating resilient and
sustainable urban food systems.
18.8 Challenges and Future Prospects
Vertical farming represents a promising approach to sustainable food
production, but it is not without its challenges. This section explores some of
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the key challenges faced by vertical farming and outlines future prospects and
opportunities for this innovative agricultural practice.
18.8.1 High Initial Investment and operation cost
infrastructure, technology, and automation systems. This can be a barrier for
small-scale farmers and startups. Vertical farms require ongoing operational
costs for electricity, water, and nutrient solutions. Achieving cost parity with
traditional farming methods is essential for long-term viability.
18.8.2 Energy Consumption
priority.
18.8.3 Technological Advancements
Continued advancements in automation, lighting, and sensor technologies
more economically viable and environmentally friendly.
18.8.4 Integration with Renewable Energy
Combining vertical farming with renewable energy sources, such as solar and
wind power, can reduce the carbon footprint of these facilities and make them
more sustainable.
While vertical farming faces several challenges, it holds immense promise for
the future of agriculture. With ongoing research, technological innovations,
and a focus on sustainability, vertical farming has the potential to play a vital
role in addressing food security, resource conservation, and urbanization
challenges in the years to come.
18.9 Conclusion
The literature has provided a comprehensive overview of vertical farming,
and various technological advances. We have delved into the role of
automation, environmental control, nutrient management, crop selection,
and the challenges and future prospects of vertical farming. Vertical farming
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some of the most pressing challenges of our time, including food security,
resource scarcity, and environmental sustainability. As urbanization continues
to accelerate, the importance of localized, year-round food production
becomes increasingly evident. Vertical farming, with its ability to produce
fresh and nutritious crops in controlled environments, addresses this need.
While vertical farming faces challenges related to initial investment, energy
consumption, and operational costs, it also presents promising opportunities
for technological advancements, sustainable practices, and collaborations that
obvious that vertical farming has the potential to play a vital role in shaping
the way we produce and access fresh food, particularly in urban environments.
By embracing innovation, sustainability, and knowledge sharing, we can work
food-secure and environmentally conscious world.
References
Banerjee, A., Paul, K., Varshney, A., Nandru, R., Badhwar, R., Sapre, A. and Dasgupta, S.
2022. Soilless indoor smart agriculture as an emerging enabler technology for food
and nutrition security amidst climate change. In: Plant nutrition and food security in the
era of climate change, Academic Press, pp. 179-225.
Billah, M., Aktar, S., Brestic, M., Zivcak, M., Khaldun, A.B.M., Uddin, M.S., Bagum, S.A.,
Yang, X., Skalicky, M., Mehari, T.G., Maitra, S. and Hossain, A. 2021. Progressive
genomic approaches to explore drought-and salt-induced oxidative stress responses
in plants under changing climate. Plants, 10(9): 1910.
Despommier, D. 1999. The Vertical Farm: Feeding the World in the 21st Century. The Atavist,
1(1): 1-33.
Zaks, D.P. 2011. Solutions for a cultivated planet. Nature, 478(7369): 337-342.
Food and Agriculture Organization (FAO). 2017. The Future of Food and Agriculture:
Trends and Challenges. FAO, Rome.
R. 2015. Challenges of sustainable and commercial aquaponics. Sustainability, 7(4):
4199-4224.
Agronomy, 6(2): 37.
Gupta, K., Kumar, R., Baruah, K.K., Hazarika, S., Karmakar, S. and Bordoloi, N. 2021.
Environmental
Science and Pollution Research, 28(24): 30551-30572.
287
Advances in Vertical Farming: Innovations, Challenges, and...
Hickey, L.T., N. Hafeez, A., Robinson, H., Jackson, S.A., Leal-Bertioli, S.C., Tester, M. and
Nature Biotechnology, 37(7): 744-
754.
Love, D.C., Fry, J.P., Genello, L., Hill, E.S., Frederick, J.A., Li, X. and Semmens, K. 2014. An
international survey of aquaponics practitioners. PloS One, 9(7): e102662.
Raviv, M., Lieth, J.H. and Bar-Tal, A. (Eds.). 2019. Soilless culture: Theory and practice. Elsevier.
Soilless Cultivation. In: Maitra, S., Gaikwad, D.J. and Santosh, D.T. (eds) Advances in
Agricultural Technology
Santosh, D.T. and Gaikwad, D.J. 2022. Advances in Hydroponic Systems: Types and
Management. Advances in Agricultural Technology edited by Sagar Maitra, Dinkar J
Savvas, D. and Gruda, N. 2018. Application of soilless culture technologies in the modern
greenhouse industry—A review. Eur. J. Hortic. Sci., 83(5): 280-293.
