Latest / Hydroponics Daily / 7 Game-Changing Benefits of Hydroponics
Transcript
- 0:00Hello and thank you for joining me for another episode of Hydroponics Daily.
- 0:04Today I'm going to be talking about the benefits of growing hydroponically.
- 0:08I've done this podcast a bit back to front.
- 0:12I've been talking about the benefits last and I've talked about how you grow first.
- 0:16So if you're into your minds about growing hydroponically or you want to know
- 0:20more about it, this is the episode for you.
- 0:22I've got seven good benefits, advantages of growing hydroponically.
- 0:27Now the first one is the one that's most
- 0:30often talked about and that is that you get more crop per
- 0:33unit area this is because your plants don't
- 0:36need to go foraging around for nutrients and water it's right
- 0:39there in the fertigation solution in the inert media so
- 0:43you you're providing this inert fertigation sorry
- 0:47this fertigation solution in an inert media and so
- 0:50you don't have to produce as big a root system and
- 0:53the plants don't have to work as hard to get the nutrients they don't
- 0:56have to break them down and rely on fungi and
- 0:59the biology to break it down it's all there so this
- 1:02means that you can get really massive increases in yield things
- 1:05like aeroponics as we've talked about in the past these are really high yielding
- 1:09and if you think about it in cut flowers you can
- 1:12get 60 plants per square meter which is
- 1:15crazy you would never get that anywhere near that in soil
- 1:18if you're growing some like chrysanthemums so you
- 1:21get vast increases in yield that is why most people
- 1:24grow hydroponically that's why you get really large
- 1:27commercial greenhouses all the tomatoes
- 1:30and cucumbers grown in the uk now are all grown
- 1:33hydroponically because the yields just mean that anyone growing in soil would
- 1:38be blown out of the water in comparison second massive advantage for hydroponics
- 1:43is that you can get out of season production so you can go crops out of season
- 1:48under artificial light, artificial heat.
- 1:52There's no soil, so you don't have to warm the soil or anything like that.
- 1:55You just have a warm fertigation solution and you can grow out-of-season produce.
- 2:01So if you think about strawberries, they used to say around 2005,
- 2:07if you could grow, to 2010, if you could grow strawberries for Christmas,
- 2:12it was a license to print money.
- 2:14And now, everyone eats strawberries at Christmas in the UK, and we don't even think twice about it.
- 2:20You go back 10, 12 years, that was not a thing.
- 2:25That was maybe a thing for people who went to Marks and Spencer's and bought
- 2:30five strawberries in a tray for a fiver.
- 2:33But it was not the common thing. Now, it is very common for strawberries,
- 2:37because they're all grown hydroponically, either in Spain and the hydroponics,
- 2:42or the UK, or Holland, or somewhere like that, Italy.
- 2:44So now that's hydroponics has massively taken
- 2:49that on okay and the third reason for
- 2:51growing hydroponics and the reason commercial growers do it is an
- 2:54absence of soil-borne diseases now i mentioned in
- 2:57the just now chrysanthemum growers you will
- 3:00not find a chrysanthemum grower now that doesn't grow
- 3:03hydroponically because they used to grow in the same soil every
- 3:06year and the pest diseases built up and
- 3:08built up to the point where either they moved to hydroponics or
- 3:12they went bust most of the uk chrysanthemum growers
- 3:15went bust so if you are growing a
- 3:17crop that suffers with really bad soil-borne diseases
- 3:21then then hydroponics is the answer now
- 3:25for something like hops that's really difficult because hops
- 3:28grow you know six seven meters tall but for something like raspberries and strawberries
- 3:33that has certainly been the case and now if you went back 15 years in the UK
- 3:38most strawberries were grown in the soil now you'd struggle to find a strawberry
- 3:43farm other than a pick your own strawberry farm.
- 3:47Catering to the general public, picking their own as a source of,
- 3:52as a pastime, you would not find a commercial strawberry farm growing in soil.
- 3:59They're all growing in cocoa, on gullies, in the air, in tunnels.
- 4:04And the same for raspberries. Raspberries are now grown in cocoa in pots.
- 4:09Blueberries are all grown in pots for this reason. And it's also,
- 4:12the main reason is to prevent soil-borne diseases.
- 4:15There are loads of diseases in strawberries, raspberries, blueberries that build up in the soil.
- 4:20And if you can grow hydroponically, you can remove that completely because you
- 4:24can rejuvenate your growing media.
- 4:26You can flush sterilizing agents like peroxide and other sterilizing agents
- 4:31through the system, some non-pesticidal ones.
- 4:34So that's another really good reason for growing hydroponically.
- 4:38The fourth good reason is the optimization of
- 4:41your fertilizer treatments so you can provide a
- 4:44liquid that contains all every essential
- 4:47nutrient and you don't need to worry about lockout well you
- 4:49do need to worry about lockout but if you do it correctly you won't get
- 4:52any lockout whereas if you're growing in soil and you
- 4:55provided hydroponic fertilizer to soil you
- 4:58would still get lockouts of calcium and phosphorus and you
- 5:02would get iron being locked up unless it was
- 5:05very well chelated and so hydroponics allows
- 5:08you to give the correct fertiliser at all
- 5:11times and monitor it as it goes around the system so if
- 5:14it's a closed loop system you can monitor the different nutrients
- 5:17depending on the the automation you've got and
- 5:21you can you can adjust and up regulate it
- 5:24and down regulate it depending on the ph the ec value the actual you could even
- 5:28measure the nutrients in there other factors that can be measured so you can
- 5:32you can measure a whole lot more than you can in a soil borne system another
- 5:37major advantage of hydroponics that's not mentioned very often is a lack of contamination.
- 5:43Now this includes biological and chemical contamination.
- 5:47There are a lot, not to say there's a lot, but there are occasionally reports of.
- 5:52Human disease is being picked up from fresh produce is because
- 5:55they're not it's you think about leafy vegetables
- 5:59they're not cooked before they are
- 6:02eaten and so they may be washed but
- 6:05if you get dirt on them or something happens in the field you can
- 6:08get biological contamination e.coli listeria these
- 6:11are major problems real headaches for field-grown vegetables
- 6:14the main issue for field-grown vegetable farmers
- 6:17is auditing and making sure that they
- 6:20don't get contamination of biological contamination in
- 6:24the field from like spray from manures
- 6:27or spray from the soil landing on the leaves and things like this this
- 6:30is their major headache whereas in hydroponics that's far
- 6:33less of an issue because you're not getting that there's no no soil
- 6:37around for that contamination or there shouldn't be and.
- 6:40Then there's the other thing of chemical contamination now this
- 6:43is a particular issue in courgettes and this
- 6:47is from a colleague of mine who who who told me
- 6:50this and i looked into it and it was true that there
- 6:52was a there's an insecticide called dieldrin and dieldrin
- 6:56was used from the 1940s up until the 1970s and
- 7:00it contaminates soil so it stays around in the
- 7:03soil it's persistent extremely persistent and when
- 7:06courgettes are grown in fields that they previously.
- 7:10Used to grow courgettes and it
- 7:13contains this dieldrin then they have to be thrown away
- 7:16because they pick up so much dieldren from the
- 7:19field that they are cannot be
- 7:21sold in the european union and so courgettes can't
- 7:26be grown in anywhere where this this insecticide has been used and
- 7:29when the and where the courgette hits the ground it can actually
- 7:32pick it up on its skin so that there's a reason
- 7:34to grow go back to courgettes i've actually got a
- 7:37customer in spain who's growing loads of
- 7:40courgettes at the moment and he works on a
- 7:43biological bacterial product and it's seen really good yields and
- 7:46bacteria is a major issue and so biologicals
- 7:50is a major issue in coordinates as well another advantage
- 7:53that's not often thought about is that it's lightweight so you
- 7:57don't need to carry if you're growing somewhere that's not directly in the soil
- 8:01you don't need to lump soil around so if you're growing in your loft if you're
- 8:05a hobby grower you don't need to lump loads of soil into your loft or your spare
- 8:09room or your conservatory or you know things like this if you live in a flat
- 8:13condo then you don't need to worry about this.
- 8:16Other issues where lightweight is an advantage if you're going up into space
- 8:21if you're going to antarctica if you're on a cruise ship if you're these are
- 8:25all places where you might want to grow crops fresh produce and you lightweight
- 8:31is a really big advantage and.
- 8:34Think about it on the there's lots of people talking about growing
- 8:38crops on the roofs of supermarkets i
- 8:41think it's not a very good idea because in reality
- 8:45you've got a lot of auditing and a lot of different crops to grow to
- 8:48fulfill what people want from a supermarket but it
- 8:51would certainly have to be lightweight if you're going to grow a farm on
- 8:55top of a supermarket roof because these are you know
- 8:57metal clad shell buildings these
- 9:00are not you know victorian brick or even
- 9:04concrete buildings most of the time so lightweight is our
- 9:07sixth advantage for hydroponics you can get it up
- 9:09on the roof you have a green roof if you've
- 9:13got a flat roof you could grow on a flat roof as long as it can hold the weight
- 9:15and you certainly couldn't do that with soil it would just
- 9:18weigh too far too much got a funny story my sister
- 9:22is a doctor and i'm a doctor but i'm a
- 9:24doctor of plants she's a doctor of humans i know nothing about
- 9:27human biology i mean i know absolutely nothing some
- 9:31of the stories i could tell you are embarrassing she's a
- 9:34doctor of humans and she knows nothing about
- 9:37plants and she once had a hanging basket or one
- 9:40of those baskets you put on the side of your house and she
- 9:43thought that grown media and compost was the same as soil
- 9:46so she filled it full of soil and this thing
- 9:49just crashed down off her house because of
- 9:52the weight of the soil so she should have been using cocoa
- 9:55or peat she and a lightweight.
- 9:59Hydroponic fertigation system would have been better and so
- 10:03yeah hydroponics the sixth advantage is lightweight and the
- 10:05seventh and final advantage of hydroponics is that
- 10:09it is flipping cool it looks brilliant it's
- 10:12really interesting to do some of the systems you
- 10:16can get just look amazing if you're if you
- 10:18just like you know a bloke that wants
- 10:21to mess around with stuff as a hobby messing
- 10:25around with pipes and pumps and circularity
- 10:29systems and you know metal objects and electronic
- 10:33probes and automation and just that
- 10:37that makes hydroponics cool it is a cool thing
- 10:40compared to growing in the soil i don't care what you say and if
- 10:43you're so soil growers hydroponics is cool so
- 10:46they're the seven advantages one more crops per
- 10:49area two out of season production increasing
- 10:52massively what you can charge for your crop absence of
- 10:56soil borne diseases which makes some crops just uncommercial
- 11:00nowadays optimization of fertilizer treatments five
- 11:04lack of contamination whether that's biological or
- 11:07chemical six super lightweight compared to
- 11:09soil-based systems and seven it's flipping cool that's been hydroponics daily
- 11:13for today and tomorrow we'll have another episode might do it on the history
- 11:18of hydroponics everyone talks about it starting in the hanging gardens of but
- 11:22that is absolute nonsense and i will tell you the real story about where hydroponics.
- 11:28Originated from tomorrow thank you very much for listening.