Another leaf nitrogen deficiency seems to be right?
Rust spots appear on the leaves, which is what happens?
- Thread starter kuroro
- Start date
Another leaf nitrogen deficiency seems to be right?
Fuzzy Duck
Well-Known Member
Take a look at this...
By the way have started using nutrients yet ?
By the way have started using nutrients yet ?
- Thread starter
- #3
Fuzzy Duck
Well-Known Member
Could well be ca-calcium def ?
Normally assoicated with coco coir, soft water or RO water use.
David Bowman
New Member
Fuzzy, is sphagnum peat moss susceptible to cal/mag deficiencies since it is also a soilless medium like coco coir, or is it just coco coir that can have this issue?
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- #6
Fuzzy Duck
Well-Known Member
Mmm coir brick ah... not sure if that is treated before pressing & would be inclined to use Ca-calcium, Mg-magnesium supplement just to be on the safe side when dealing with coco coir.
Fuzzy Duck
Well-Known Member
Well its just coco coir which has the problems with sodium content i believe as coco tree's are mainly growing around coastal regions, its the salt which mess's with Ca/Mg uptake.
So most good named brands should of treated their coir by washing/soaking/washing etc
Brick coir may have to be washed tho... !
Sphagnum peat moss ah... if grown in 100% sphag peat with out amendments for PH, well its more likely a PH problem even tho peat moss below the value of PH 5 are known to be Ca-calcium deficient !
David Bowman
New Member
I'm planning on using the peat with perlite, vermiculite and a wetting agent, but was curious as to how it and coco coir compared. Thanks for the explanation, I now know why coco coir has the cal/mag issues and why it doesn't necessarily apply to other soiless mediums. I will keep an eye on pH, now that I have a functioning pH meter, JIC it does become an issue during my next grow.
danknessdude
New Member
I use the priomix with is peat, wetting agent and such. MUST use cal-mag with it
David Bowman
New Member
Ok, good to know. I'm using dechlorinated tap water and molasses, both of which have some cal/mag, so I'll see if that provides enough to avoid any deficiencies.
danknessdude
New Member
good call! Beneficial teas are a boost and work great in Peat based medium
danknessdude
New Member
Hey tried watering from the bottom. WORKS AWESOME in the promix
