What Is The Hydroponics?
Before explaining the hydroponics, we have to know how natural plants grow in normal farming.
Natural plant seeds are put in the soil and start these seeds absorb water and nutrients from the surrounding soil. Why? To generate energy to form its biosystems and start growing up.
When the shoots start to appear on the soil, it will need more and more energy to continue growing.
So it uses a method called photosynthesis, in which they use sunlight and a chemical inside their leaves to convert carbon dioxide and water into glucose (a type of sugar) and oxygen.
So how can we define hydroponics?
The hydroponics is a type of growing plants mainly for food, materials, comfort, and beauty
The hydroponics is a method of growing plants, usually crops, without soil, by using mineral nutrient solutions in an aqueous solvent.
No!!! That Is Stupid?
Not really. We got used to seeing the plant and soil together, that growan and green colors, we love it.
What does that mean?
You will not go to your garden (if you have one) and plant some seeds for your favorite plant. Instead of that, you can use the hydroponic method to grow plants inside your house, especially if you don’t have a garden.
The nutrients used in hydroponic systems can come from many different sources, including (but not limited to) fish excrement, duck manure, purchased chemical fertilizers, or artificial nutrient solutions.
What can I grow in this type of farming?
Plants commonly grown hydroponically, on inert media, include tomatoes, peppers, cucumbers, strawberries, lettuces, and model plants.
How hydroponics starts?
The earliest published work on growing terrestrial plants without soil was the 1627 book Sylva Sylvarum or ‘A Natural History’ by Francis Bacon,
Water culture became a popular research technique after that. In 1699 John Woodward published his water culture experiments with spearmint.
He found that plants in less-pure water sources grew better than plants in distilled water.
It quickly became a standard research and teaching technique and is still widely used. Solution culture is now considered a type of hydroponics where there is an inert medium.
Around the 1930s plant scientists investigated diseases of certain plants, and thereby, observed symptoms related to existing soil conditions.
In this context, water culture experiments were undertaken with the hope of delivering similar symptoms under controlled conditions.
Hydroponics is derived from neologism υδρωπονικά (derived from Greek ύδωρ=water and πονέω=cultivate).
One of the earliest successes of hydroponics occurred on Wake Island, a rocky atoll in the Pacific Ocean used as a refueling stop for Pan American Airlines.
Hydroponics was used there in the 1930s to grow vegetables for the passengers.
Hydroponics was a necessity on Wake Island because there was no soil, and it was prohibitively expensive to airlift in fresh vegetables.
In recent decades, NASA has done extensive hydroponic research for its Controlled Ecological Life Support System (CELSS).
Hydroponics research mimicking a Martian environment uses LED lighting to grow in a different color spectrum with much less heat.
Ray Wheeler, a plant physiologist at Kennedy Space Center’s Space Life Science Lab, believes that hydroponics will create advances within space travel, as a bioregenerative life support system.
In 2007, Eurofresh Farms in Willcox, Arizona, sold more than 200 million pounds of hydroponically grown tomatoes.
As of 2017, Canada had hundreds of acres of large-scale commercial hydroponic greenhouses, producing tomatoes, peppers, and cucumbers.
What are the techniques of hydroponics?
There are a lot of ways to grow plants hydroponically, each one uses specific nutrients.
- Static solution culture technique
- Continuous-flow solution culture technique
- Aeroponics technique
- Fogponics technique
- Passive sub-irrigation technique
- Ebb and flow (flood and drain) sub-irrigation technique
- Run-to-waste technique
- Deepwater culture technique
- Rotary technique
Related: How To Start Hydroponic Gardening
What are the growing support materials?
We have said that hydroponic method do not use soil for growing, so what materials plant can use for that?
- Expanded clay aggregate
- Coconut Coir
- Rice husks
- Wood fibre
- Sheep wool
- Rock wool
- Brick shards
- Polystyrene packing peanuts
What can we use for hydroponic farming as Nutrient solutions?
- Mixing solutions
- Organic hydroponic solutions
- Inorganic hydroponic solutions
Due to technological advancements within the industry and numerous economic factors, the global hydroponics market is forecast to grow from US$226.45 million in 2016 to US$724.87 million by 2023.
Hydroponic gardening systems: