Latest / Hydroponics Daily / The Essential Plant Nutrients
Transcript
- 0:00Welcome back to the Hydroponics Daily. Today is a subject that's close to my
- 0:04heart. It is the essential plant nutrients.
- 0:07And so every fertilizer regime, every fertilizer range will have these nutrients
- 0:13in them because without them, plants will not grow.
- 0:16And the important point to consider here is every single one is essential.
- 0:21In the absence of any of these, plants
- 0:25will not grow at all so they're all equally important however some
- 0:29are required in higher amounts than
- 0:32others and those are the six macronutrients
- 0:36macro meaning big and so the main
- 0:39one is nitrogen phosphorus then and
- 0:42potassium they're the primary macronutrients and they
- 0:46are needed in the highest amounts by far and they're
- 0:49called primary because of that primary macronutrients and
- 0:52they are any fertilizer can tell
- 0:55you the npk value because that
- 0:58that's why they're so important and then in agriculture if you're
- 1:02in a far if you're farming in a field you might just apply
- 1:05npk or you might even just apply np or nnk you can get away with farming and
- 1:10just apply nitrogen it's that crazy because the soil provides the other nutrients
- 1:14however in hydroponics there you're not growing in soil you're growing in inert
- 1:18media and you have to add all 12 and they have to all be available.
- 1:23You have the secondary nutrients, they are calcium, sulfur and magnesium.
- 1:30They are needed in high amounts. What else can we say about them?
- 1:33These are the ones that are normally missing from a base feed.
- 1:38So if you go to a garden centre, not a grow shop, buy a standard fertiliser
- 1:43and try and grow hydroponically, you're in for a world of pain because if you're
- 1:47buying a liquid, it won't contain calcium.
- 1:49And if you're buying a powder, it won't contain sulphur. And many hydroponic
- 1:53fertilisers, the granular ones, what they call salt fertilisers,
- 1:58they don't contain sulphur.
- 2:00Godleaf is unique in the fact that it contains every single one of these essential
- 2:05nutrients in a soluble form and in the ratios required by the plants and they're
- 2:09all available and they're all soluble.
- 2:11So that makes it groundbreaking, amazing and unique because it contains calcium,
- 2:16which normally interacts with phosphorus.
- 2:17If you try to mix up all the nutrients in a big vat and copy this product,
- 2:21then you'd get calcium interacting with phosphorus and
- 2:24calcium interacting with sulfur and you'd get gypsum that would
- 2:27fall to the bottom and calcium phosphate you know
- 2:30the stuff that's in your bones just fall to the bottom and wouldn't be available
- 2:33it would block your filters and your plants wouldn't grow
- 2:36properly in addition to that you've got the the
- 2:39iron that's what makes gold leaf gold and that's
- 2:42needed in high amounts we sell a lot of iron into spores turf and
- 2:45things like that to it's required for for chlorophyll
- 2:48production zinc boron copper molybdenum manganese
- 2:52we're going to go into a load of detail on these nutrients
- 2:55we're going to do a daily hydroponics daily on each
- 2:58every single one of those nutrients what to look for for deficiencies
- 3:02how to apply them what they what they're needed
- 3:04for they're all required for another essential component but
- 3:08these are the 12 essential nutrients now some of
- 3:11you will be wait i've heard there are other essential nutrients
- 3:14and there are there are things like chlorine sodium cobalt which are needed
- 3:21in absolutely minuscule amounts in so much so that there is already enough in
- 3:29the inert grow media and the water and just contamination.
- 3:33To supply them you're never ever going to get a situation of having a chlorine
- 3:38deficient plant in hydroponics and you're never going to have or cobalt deficient
- 3:41so i don't consider them to be,
- 3:43unless i'm writing a scientific paper i just don't include them
- 3:46in essential nutrients because they don't help the system they
- 3:49don't they just add confusion and there
- 3:52are other nutrients that are not essential but help
- 3:55plants grow and they improve the
- 3:59growth of plants but they're not essential for the growth of plants the obvious
- 4:02example is silicon and so that
- 4:06makes cell walls rigid a third of
- 4:09all the dry matter of bamboo is silicon and yet it's not essential so you can
- 4:13grow a bamboo plant without silicon so we'll talk about silicon later it's um
- 4:18you can add silicon additives to the feeds and gold leaf and liquid gold is
- 4:24a great product to add them to because you don't need to worry about the pH.
- 4:27What are the elements? There are things like vanadium. There are a lot of elements
- 4:32that are needed for beneficial microbes.
- 4:35So if you're growing a legume, there are beneficial microbes that are needed
- 4:38for the growth of the microbe, not essentially the plant.
- 4:42But if we're keeping it simple, these are the 12 you need. And these are the
- 4:4512 to focus on if you're a hydroponic grower, unless you're growing something really crazy.
- 4:50And then there are other nutrients that substitute for these if these are not
- 4:54available. and there are other elements that are poisonous like aluminium is
- 4:58highly toxic to plants or arsenic which is toxic to plants and humans and you want to avoid them.
- 5:04There are some fertilisers out there that have been analysed by reputable labs
- 5:08that have contained all sorts of crazy stuff like uranium and things like that.
- 5:12So you want to get your fertilisers from a trusted source and make sure they
- 5:18contain these nutrients and these nutrients alone. Okay, thank you very much.