Vertical Farming

Vertical farming is when we grow crops on top of each other in layers. This kind of farming usually uses special methods to control the environment for the plants to grow well. Instead of soil, it often uses techniques like growing plants in water or air to make farming more efficient. It is usually done indoors in areas where temperature, light, water, and air can be controlled.

Vertical farming helps in maximizing crop production. It is still a relatively new concept in India. Vertical farming is the growing of crops in vertical layers or surfaces. It is an alternative to the traditional horizontal farming practices. It is also known as indoor farming because crops are grown indoors in warehouses or greenhouses in this type of farming.

In this article, we will learn about vertical farming, its history, advantages, and challenges. We will also explore the techniques used in vertical farming like hydroponics, aeroponics, and aquaponics.

What is Vertical Farming?

Vertical farming is an innovative approach to growing crops. In this method, crops are grown in vertical layers instead of growing them horizontally. Technologies are used to control the exposure of plants to sunlight, water, and air. The temperature of the area is also controlled to ensure the best growth of the crops.

It is often done indoors in areas such as warehouses, greenhouses, or shipping containers and is therefore also called indoor farming. It allows for greater crop production because a small area of land is used to grow a larger number of crops.

Vertical Farming Definition

Vertical farming is the practice of producing crops in layers that are vertically stacked. It usually occurs in a controlled setting, either underground or inside a structure.

History of Vertical Farming

The earliest known example of vertical farming is the Hanging Gardens of Babylon. These were considered to be gardens that were developed in tiers consisting of trees and shrubs.

Dickson Despommier is considered to be the Father of Vertical Farming. He first introduced this concept in 1999 while challenging his students as to whether food can be grown on the rooftops of New York buildings. His idea later turned into reality and thus vertical farming as a concept was born.

Techniques used in Vertical Farming

A variety of techniques are used in vertical farming. The three most commonly used techniques are mentioned below.

1. Hydroponics

Hydroponics is a technique in which plants are grown without soil. Instead of soil, water rich in nutrients and minerals is directly added to the roots of plants. This results in lesser use of water and faster growth of plants due to the direct delivery of nutrients to the plants.

Read:Hydroponics Farming

2. Aeroponics

Aeroponics is a technique in which plants are grown without soil and water. Plants are suspended in air that contains mist. This mist contains nutrients and minerals which is directly absorbed by the roots of plants. This results in even lesser use of water and faster growth of plants due to the direct delivery of nutrients to the plants.

Examples of Aeroponics

• Greens with leaves: Kale, spinach, and lettuce.
• Herbs: cilantro, mint, and basil.
• Other plants: cucumbers, tomatoes, strawberries, and marijuana.

Read: Aeroponics Farming

3. Aquaponics

Aquaponics is a technique which combines hydroponics with aquaculture or fish farming. In this method, the fish waste proves to be a source of nutrients for the plants and the plants in turn filter the water for the fish. This method therefore does not use artificial fertilisers and reduces water usage.

Crops suitable for Vertical Farming

Crops need to be chosen carefully for vertical farming because they need to fulfil certain growth and space requirements. Examples of a few crops that are most commonly grown via vertical farming are leafy green vegetables such as spinach and lettuce, herbs such as basil, mint and cilantro, medicinal plants and aromatic plants. Vine crops like cucumbers and tomatoes and varieties of edible flowers like marigold and pansies are also grown in vertical farming.

Advantages of Vertical Farming

Vertical farming is a highly efficient way of growing crops and producing food. It has a number of benefits and holds great potential for the future.

• Efficient usage of land: Vertical farming maximises land usage. By growing crops vertically instead of horizontally, a large number of crops can be grown in the same area. This leads to higher crop yield. This is very important in densely populated areas where fertile land is scarce.
• Conservation of water: Vertical farming includes techniques such as hydroponics, aeroponics and aquaponics. In all these techniques minimum water is used as the water is enriched with nutrients and minerals. This is very useful in countries where water scarcity is an emerging problem.
• Reduced pesticide usage: As this farming is done indoors, pesticides used are very less. In aquaponics, for example, the fish waste is used by plants to derive nutrients and minerals.
• Year round production: Vertical farming is done in closed rooms where temperature, water, light and humidity are controlled. The entire climate is controlled through sophisticated techniques thereby crops can be grown all throughout the year in this farming.
• Reduction in emissions: Vertical farming is carried out indoors. This thereby reduces the distance between the farms and the consumers. This further reduces emissions from transportation and also reduces chances of the produce turning bad.

Challenges to Vertical Farming

Although vertical farming is the new and sustainable way of farming, it does have its fair share of challenges. The future prospects of vertical farming depends on the way the challenges are overcome.

• Vertical farming requires high initial investment in terms of money as well as infrastructure.
• As the entire climate of the room is controlled in vertical farming from temperature to humidity to sunlight and water, electricity is of utmost importance.
• A good knowledge of technology needs to be there to implement vertical farming. This may not be possible for small and marginal farmers.
• All varieties of crops cannot be grown through vertical farming. Careful selection is required of crops that are suitable to be grown.
• Demand should also be there for the crops grown through vertical farming or else it will be a loss for the farmers. Thus not many farmers will be keen on taking the risk of adopting vertical farming.

Initiatives of Vertical Farming in India

Vertical farming is slowly gaining importance in India. It has the capacity of changing the way in which food is grown and consumed in India. With the advancement in technology, vertical farming will become easier and more accessible in India.

Related Articles on Vertical Farming:

• Different Types of Farming in India
• Integrated Farming System
• Genetic Engineering in Agriculture

Future of Vertical Farming

Here are the future scopes of vertical farming which can be very significant in the agriculture economy:

• Vertical farming maximizes space utilization by growing crops in stacked layers, making it suitable for urban environments with limited available land. This is particularly important as urbanization continues to increase.
• Indoor vertical farming allows for precise control over environmental factors such as light, temperature, and water. This results in efficient resource use, with reduced water consumption, and minimal pesticide usage
• Ongoing technological advancements in automation, artificial intelligence, and precision agriculture are enhancing the efficiency and productivity of indoor vertical farms.
• Vertical farms can be integrated into a circular economy model, where waste products from one process are used as inputs for another. For example, organic waste can be converted into compost or energy, creating a more sustainable and closed-loop system.

Conclusion - Vertical Farming

Vertical farming holds immense potential as an efficient way of growing crops. Efficient usage of land, effective and reduced water usage and reduced pesticide usage are all great advantages that can attract farmers to try this method of farming.

Also vertical farming has the potential to deal with India’s issue of food scarcity and lack of arable land and water. With advancement in technology, vertical farming can really become the future for sustainable agricultural practices.