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hightimesreader
Half assed question asker
Registered: 07/18/06
Posts: 2,543
Loc: In the air conditioning
Last seen: 12 years, 9 days
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Fertalizer question..(MJ)
#8253329 - 04/07/08 10:11 PM (15 years, 11 months ago) |
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If SWIM has a few plants and some of them have a yellowish hue to the leaves and the first 2 leafs that where there at seedling stage are almost all brown and dead. The veins are still green. I was talking to a friend and he said that he thought it might be a deficiency of nitrogen. I was reading online that the way that the way SWIMS plants look like, it is assumed that they have a magnesium and/or nitrogen deficency. What would you guys say?
So, if thats true, how does SWIM add nitrogen/magnesium to the soil? How do SWIM know how much is too much?
HTR
-------------------- I'm hunting for The Following ethnos. For experiments, hunting finds and any other contributions, check out My journal. HTR A new leaf turned over.. I'm too old for this shit.
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Conquistador
Stranger
Registered: 01/31/08
Posts: 9
Loc: The Fountain Of Youth
Last seen: 8 years, 7 days
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Swim might wanna check out some various guanos and wormcastings along with some other organic subs and or liquid ferts.
For the nitrogen diff. just get a grow supplement with a reasonably high N level in the n-p-k level.
Check the hydroponic stores if you have any around.
Peace, Conquistador
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Zinglons Acolyte
Wizard Ninja
Registered: 12/03/07
Posts: 2,877
Loc: Andromeda Galaxy
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go to your local garden store
buy some miracle grow or something similar, just make sure that the first number is relatively high
folllow instructions on the package, except only use half of what they tell you or ull prolly kill the plants, half strangth for bi-weekly fertilization, quarter for daily
-------------------- And they wandered off.. nine ways till bedfast. ----- "And lets pray that there's intelligent life somewhere up in space 'cause theres bugger-all down here on earth!" -Monty Python's "The Universe Song" from The Meaning of Life "In the beginning, the universe was created. This has made a lot of people very angry and has been widely considered as a bad move." -Douglas Adams "The Hitchhikers Guide to the Galaxy" "If the words 'life, liberty and the pursuit of happiness' don't include the right to experiment with your own consciousness, then the Declaration of Independence isn't worth the hemp it was written on." -Terence McKenna
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dysphoria
lost soul
Registered: 06/04/03
Posts: 1,651
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just fyi... the '2 leafs that where there at seedling stage' are called cotyledons. and its common for these two leaves to wilt, die, and drop off the plant (depending on plant of course, some have persistent cotyledons)
and you should really invest in some pH paper, pH soil testing kit, acidity meter...whatever you want. fertilize all you want, but be aware that any added nutrients are going to possibly throw the pH off balance, and plants dont like that.
also, you dont usually run into mineral deficiencies until the plant (and thus the soil its using) is old, or poor in nutrients to begin with.
other causes of wilting/yellowing (in no special order): poor soil draining pathogens/bacteria/etc overwatering underwatering poor root system due to any of above? etc
point is, id look for other causes first and then decide its a mineral deficiency.
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Zinglons Acolyte
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Posts: 2,877
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Re: Fertalizer question..(MJ) [Re: dysphoria]
#8253532 - 04/07/08 10:50 PM (15 years, 11 months ago) |
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Quote:
dysphoria said: and you should really invest in some pH paper, pH soil testing kit, acidity meter...whatever you want. fertilize all you want, but be aware that any added nutrients are going to possibly throw the pH off balance, and plants dont like that.
uhm no... lol fertilizers are salts too much salts burn the roots, it doesnt have to do with ph, although keeping the soil neutral is also something you should do
using too much fertilizers builds up the salts in the soil, which kills the roots, which kills the plants
overfertilizing and overwatering are the top two ways people kill plants
-------------------- And they wandered off.. nine ways till bedfast. ----- "And lets pray that there's intelligent life somewhere up in space 'cause theres bugger-all down here on earth!" -Monty Python's "The Universe Song" from The Meaning of Life "In the beginning, the universe was created. This has made a lot of people very angry and has been widely considered as a bad move." -Douglas Adams "The Hitchhikers Guide to the Galaxy" "If the words 'life, liberty and the pursuit of happiness' don't include the right to experiment with your own consciousness, then the Declaration of Independence isn't worth the hemp it was written on." -Terence McKenna
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Nibin
Getting there
Registered: 11/29/05
Posts: 4,480
Last seen: 10 years, 10 months
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Quote:
Zinglons Acolyte said:
Quote:
dysphoria said: and you should really invest in some pH paper, pH soil testing kit, acidity meter...whatever you want. fertilize all you want, but be aware that any added nutrients are going to possibly throw the pH off balance, and plants dont like that.
uhm no... lol fertilizers are salts too much salts burn the roots, it doesnt have to do with ph, although keeping the soil neutral is also something you should do
using too much fertilizers builds up the salts in the soil, which kills the roots, which kills the plants
overfertilizing and overwatering are the top two ways people kill plants
pH does have to do with the fertilizer problem. At wrong pH levels the fertilizers deposit forming salts and are not absorbable by the plant.
Anyway, the yellowing can have many causes.
The main ones are nutrient deficiency and plant age.
Nutrient deficiency isn't always caused by a deficiency of nutrients in the soil ( which would be solved by adding fertilizer) but can also be caused by an incorrect soil pH.
It should be around 6.5-7 (I find closer to 6.5 works better) To achieve this the pH of your watering water should be between 6 and 6.5
Also, when the plant reaches the end of its lifecycle the older leaves tend to yellow.
PS: Do Cotyledons have veins? I honestly don't remember, I have been using clones for too long.
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