K
keithrs
Guest
Bioweed from GH has a NPK of 0.2-0-0.3
1 I thought Superthrive was banned in Oz because they couldn't substantiate the claims??
2 I can't find a kelp product which is low in K??
I have read from a few different sources (although maybe just repeating each other) that kelp extract is best applied via foliar spray as this is 10-20 times more efficient than delivery through root drench. Any one have further information on this?
Actually my references say roots are much more efficient in taking up nutrients and foliar sprays should be reserved for special circumstaces such damaged roots or for getting N or Mg. or whatever quickly into leaves. So I was wondering why/if seaweed was better sprayed?
Mike
Actually my references say roots are much more efficient in taking up nutrients and foliar sprays should be reserved for special circumstaces such damaged roots or for getting N or Mg. or whatever quickly into leaves. So I was wondering why/if seaweed was better sprayed?
Mike
I noticed bigger improvement with a wetting agent added to foliar sprays.
So when you fertilize by pouring with a watering can you're actualy doing both. .
Foliar sprays are only effective when the stomata are open... evening through early morning and the water solution needs to get on the bottom side of the leaves.
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Yes, but then I would have to fertilise at 1/5 th of the recommended concentration.
I'm fertilizing at 1/8 recommended :evil: ( so far so good )
Yes, bottom of the leaves is better which is another reason why it is better to apply it with a mister rather than a watering can. A finer mist is also better.
Is it known that bottom of leaves have a higher concentration of stomata than the top in paph leaves?
They say using a foliar fertiliser also greatly improves the absorption of fertiliser through the roots
How can that be?
Foliar sprays are only effective when the stomata are open... evening through early morning and the water solution needs to get on the bottom side of the leaves.
It seems we can forget about stomata and presumably spray any time humidity will stay high for a some time (Page 7)
http://www.growersmineral.com/pdf/The GP - Foliar Nutrition.pdf
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I'm fertilizing at 1/8 recommended :evil: ( so far so good )
Is it known that bottom of leaves have a higher concentration of stomata than the top in paph leaves?
How can that be?
If you fertilise at 1/8 the recommended soil fertilisation rate, that would make it 1/40 the recommended foliar rate.
In relation to increased fertilisation through the roots, I have read it from several sources. It is explained here in point 9. Point 3 talks about the increased numbers of stomata on the bottom sides of the leaf.
http://www.nutri-tech.com.au/blog/2010/03/top-10-most-frequently-asked-foliar-fertilising-questions/
Some more useful information from these sites -
http://www.spraygro.com.au/foliar_feeding.asp
http://www.ecochem.com/t_foliar.html
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