Hydroponics Farming: Why Hydroponic Farms Are Trending In India?
Hydroponics is slowly gaining popularity in India and attracting more and more farmers. Basically, hydroponics is a type of horticulture and a subset of hydroculture, which is a method of growing plants, usually crops, without soil, by using mineral nutrient solutions in an aqueous solvent.
Hydroponic farming can be done in a small space also like a balcony which is a soil-less, water-based farming process. Rather than using soil for plant nutrition, crops are fed nutrient-rich water, negating a lot of the baggage that comes with soil-based methods.
Hydroponics is the practice of growing plants in a nutrient-rich solution, skipping the soil. “It has been practised for centuries, so it is not a new technology," points out Akhila Vijayaraghavan, the founder-director of Coimbatore’s Parna Farms, adding the Hanging Gardens of Babylon are believed to have been hydroponically grown. “The Aztecs created vast hydroponic systems using rafts called chinampas," she says.
The film piqued Gopal’s interest, and he began reading about the method to grow plants without soil. “We started working with hydroponics as a project in 2012. At that time, we didn’t know much about the plight of farmers and how a technology like this could add value," said Gopal. The idea was to create awareness among the right audience and sell “through prototypes and hobby kits."
Urban farmers are taking to hydroponics, a water-smart solution to grow pesticide-free produce on rooftops and terraces. As per reports, India’s hydroponics market is expected to grow at a compound annual growth rate of 13.53% between 2020 and 2027.
What is Hydroponics
Hydroponics is a branch of hydroculture, in which plants are grown without soil by using water solvent which consists of minerals nutrient solution. Terrestrial plants may be grown with their roots only, roots are exposed to the nutritious liquid, or roots may be supported physically by a medium like gravel.
Plants are also grown through a process called photosynthesis, in which plants use sunlight and a chemical inside their leaves called chlorophyll to convert carbon dioxide and water into glucose and oxygen, as shown in reaction.
6CO2 + 6H2O → C6H12O6(Glucose)+ 6O2
The nutrients we use in hydroponic systems may come from different sources, such as fish excrement, duck manure, or chemical fertilisers.
1Advantages of Hydroponics
Plantation without soil
We can grow plants in places where the land is limited, doesn't exist, or is contaminated. In the early time period, Hydroponics was a successful technique used to supply fresh vegetables for troops in Wake Island. It has been considered as the future farming to grow foods for astronauts in space by NASA.
Better use of space and location
All those plants need are provided and maintained in a system, you can grow plants in a small apartment, bedrooms or kitchen as long as you have some spaces.
Roots of plants usually expand and spread out in search of foods, and oxygen in the soil but in the case of Hydroponics, roots are sunk in a tank full of oxygenated nutrient solution and are directly in contact with vital minerals. This means that you can grow your plants closer, and consequently huge space savings.
Climate control
Hydroponic growers can have total control over climate, temperature, humidity, light, the composition of the air. This means you can grow foods all year, regardless of the season. Farmers can produce foods at the right time to maximize their profits.
Water-saving
Plants grown by the process of hydroponically can use 10% of water, as compared to one grown on the field because water is recirculated, in this method. Plants will take up the water they need, while run-off water will be captured and return to the system. Water loss in this system will only occur in two forms - evaporation and leaks from the system.
Use of nutrients
You can have 100% control of the nutrients (foods) that plants need in this method. Before planting, growers can check what are plants requirement and what amounts of nutrients needed at particular stages and at what percentage they should be mixed with water.
Better growth rate
Do hydroponic plants grow faster than in soil? Yes, because you can set conditions favourable to the plant’s growth like temperature, lights, moisture, and especially nutrients. As plants are placed in favourable conditions, nutrients are provided in sufficient amounts and come into direct contacts with the root systems. Therefore, plants do not waste valuable energy in the search for diluted nutrients in the soil and put their complete focus on growth.