leafminer
Bloody H E L L !
- Joined
- Sep 26, 2008
- Messages
- 3,291
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You can find out some very interesting stuff if you use specific nutes rather than mixtures.
Example:
One of my sat dom sibs is in coco and on 15-30-15, growing well. Another is in 75% coco, 25% pasteurised sheep manure. Not fed extra ferts.
Now, the one in the manure is doing well but has lime green leaves towards the top. Excess of N I guessed from the high percentage of manure.
I dissolved a few crystals of the potassium phosphate (see picture) - this is some I made myself as the cooks say .. :headbang: in a couple of litres of water and gave it to the one with lime green leaves.
Within one day the leaves had turned a much darker shade and I think this confirms my theory that there was too much N or rather, too little P and K \. The crystals are KPO4 so are around, umm, it's 0-30-23.
============
Now, you are probly asking, how the $#!@ can I get stuff like potassium phosphate?
Well, I made my own by combining KOH and phosphoric acid. But there is another way. You can find bloom nutes from these commercial nute companies that specialise in nutes for our most popular plant, just read the specifications. One of them - I won't mention the name - is pure P. So if you mix this in the right proportions with some common "LIGHT" table salt you will add the K. By changing the proportions you can adjust the ratio of P to K. You will have to use the stoichiometry you learned in chemistry in High School ...:rofl: I can picture most of you now, asking teach "But what use will THIS be after I leave school?"
Well...
(note: by LIGHT table salt I mean the type with NO sodium!)
Example:
One of my sat dom sibs is in coco and on 15-30-15, growing well. Another is in 75% coco, 25% pasteurised sheep manure. Not fed extra ferts.
Now, the one in the manure is doing well but has lime green leaves towards the top. Excess of N I guessed from the high percentage of manure.
I dissolved a few crystals of the potassium phosphate (see picture) - this is some I made myself as the cooks say .. :headbang: in a couple of litres of water and gave it to the one with lime green leaves.
Within one day the leaves had turned a much darker shade and I think this confirms my theory that there was too much N or rather, too little P and K \. The crystals are KPO4 so are around, umm, it's 0-30-23.
============
Now, you are probly asking, how the $#!@ can I get stuff like potassium phosphate?
Well, I made my own by combining KOH and phosphoric acid. But there is another way. You can find bloom nutes from these commercial nute companies that specialise in nutes for our most popular plant, just read the specifications. One of them - I won't mention the name - is pure P. So if you mix this in the right proportions with some common "LIGHT" table salt you will add the K. By changing the proportions you can adjust the ratio of P to K. You will have to use the stoichiometry you learned in chemistry in High School ...:rofl: I can picture most of you now, asking teach "But what use will THIS be after I leave school?"
Well...
(note: by LIGHT table salt I mean the type with NO sodium!)
