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Dubai: Sustainable urban farming has now become a reality in the UAE.
Instead of picking up expensive organic vegetables that have travelled thousands of miles around the world guzzling aviation fuel and clocking high on the carbon footprint, we now have an alternative.
We can actually have pesticide-free, zero carbon, indigenously grown, reasonably priced organic vegetables round the year.
Meet Mustafa Moiz, a young Indian expatriate and resident entrepreneur from Dubai.
He is the Managing Director of UNS farm, an indoor facility housed in a large warehouse of Al Quoz Industrial area.
Urban farm
Utilising principles of vertical farming with eight vertical levels of farming, his farm utilises 30,000 square feet of space and is the largest urban farm in the city.
“There is a misconception that good quality, organic, pesticide-free vegetables have to be expensive. We are offering through UNS affordably priced vegetables for all,” said Moiz
UNS farm that began operation in September 2018, harvests anything between 1,000 to 1,500kg of vegetables every day.
Currently supplying to gourmet chefs, hotels and restaurants.
However, its produce will soon be available to individuals on supermarket shelves.
The farm works on principles of hydroponics which rests on growing vegetables soil free in peat moss. Nutrition is supplied to plants through macro and micronutrients dissolved in water, through drip farming optimising the use of water.
Temperature controlled
The indoor farm is temperature controlled so has the same yield throughout the year, even during the peak of summers.
It is sustainable because it uses minimum water and the green, red and yellow ultraviolet solar colours that are used in the indoor farm come from energy-saving LED lights.
The Moiz family, which also runs a family hardware business, invested $10 million (Dh36.7 million) in this project as they completely believe in organic, sustainable urban farming.
Moiz added: “Urban farming is the future of the world. Using the principles of drip irrigation and aerial farming and economising on congested city spaces, it is not only eco-friendly but is also financially and environmentally sustainable. Most cities can actually become self- sufficient in indigenous food production. This is the key to food security in our near future.”
The UNS farm currently produces tonnes of greens — baby spinach, kale, basil, lettuce and salad leaves. The farm plans to diversify into growing fruit such as strawberry and also cultivate mushrooms. It also is into cultivation of flowers.
The produce, minus pesticides and harmful chemicals, are imbued with great natural flavours. Moiz added: “The vegetables grown here taste incredible.
Usually soils in general have chemicals and pesticides leeched into it over some years. But here we grow without soil and there is no contamination of any kind of harmful chemicals.”
Uns plans to get into mushroom cultivation soon. “Worldwide mushrooms are the favourite fungi for exotic cuisines but are not required to be grown in compost base which is not always very hygienic. We will be adhering to very high hygienic standards while cultivating mushrooms too. We want people to know that health and quality need not come at a premium, and at UNs were are working towards that goal,” added Moiz.
How does Hydroponic farming at UNS happen?
Each herb or green has its own cycle of growth from 7-14 days. The farm follows definite steps for cultivation:
• Seeds of the plants to be cultivated are procured and filled with nutrients.
• They are inserted in oasis sheets which is then soaked in hydrogen peroxide solution and kept for 10 minutes. This is done to avoid fungal and other bacterial growth. Again the seeds are sprayed with the nutrient solution which are bio stimulators enhancing the growth of the crop.
• These seeds are then taken to the growing trays where they are continuously supplied with nutrient filled irrigation solution supplied through three dedicated nutrient tanks. There are three ozone units installed in the farm that kills any kind of bacterial growth
• The farm temperature is maintained under 24 degree Celsius, the PH level is maintained at 5.80 and carbon dioxide is maintained is at 600 ppm. All of which is controlled and maintained by an automated control panel that checks optimum PH, temperature, nutrient target and humidity.
• The LED lights supply nourishment through the colours of the rays.
• The harvesting depends on the kind of crop. Some crops start germinating between the fifth and seventh day. The harvest can be done from tenth day and the same plant can is re-harvested up to 4 or 5 times from the same growing tray.
• The crop is taken to the harvest machine where it is sized uniformly and then is taken to the sterilising bubble washing machine where it sterilises the plants and increases the shelf life
• The crop is then taken to the dryer where it is dried in a manner that 10 per cent of the moisture is retained to maintain the freshness of the crop.
Hydroponics nutrition
The composition of the nutrients in hydroponic farming is essential as plants grow without soil. There are over 20 elements that are essential. These include elements such as carbon, hydrogen and oxygen that the plant absorbs from the air and water. In addition plants require essential minerals and nutrients that are dissolved in water in correct proportions and delivered to the plant through drip irrigation.
The essential minerals in solution for hydroponic farming must include”
•Nitrogen (N)
•Potassium (K)
•Phosphorus (P)
•Calcium (Ca)
•Magnesium (Mg)
•Sulphur (S)
•Iron (Fe)
•Manganese (Mn)
