Pretty, but does it look like a phophorus deficiency to you?

Hugo Phurst

Hugo Phurst

Well-Known Member
6 weeks into flower, unknown strain. Room is cool, not cold. Except for the colours, the plant seems OK. I've never seen this before, so my best guess is that it's a phophorus deficiency.

Your opinions please.

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curious2garden

curious2garden

Well-Known Mod
Staff member
Beautiful plants, possibly it's a bit of a deficiency. My Bubba's get purpling at the tips normally too. But a couple pics, for example #5 looks like a nitrogen claw and picture #11 looks like it could be a P deficiency. So me I'd give them some bloom nutrient when next I fed them. But they look pretty nice congratulations.
 
S

silasraven

Well-Known Member
Problems with Molybdenum being Locked out by Ph Troubles

Soil ph that are under 5.5

Soil

Molybdenum gets locked out of soil growing at ph levels of 2.0-6.5
Molybdenum is absorbed best in soil at a ph level of 7.0-9.5 (Wouldn’t recommend having a soil ph of over 7.0 in soil) anything out of the ranges listed will contribute to a Molybdenum deficiency.

Hydro and Soil less Mediums

Molybdenum gets locked out of Hydro and Soil less Mediums at ph levels of 2.0-5.5
Molybdenum is absorbed best in Hydro and Soil less Mediums at ph levels of 6.0-8.0 (Wouldn’t recommend having a ph over 6.5 in hydro and soil less mediums.) Best range for hydro and soil less mediums is 5.0 to 6.0. Anything out of the ranges listed will contribute to a Molybdenum deficiency.

Solution to fixing a Molybdenum deficiency
One way to fix a Molybdenum deficiency is to foliar spray with Molybdenum, like Miracle Grow All Purpose plant food and Miracle Grow: Tomato Plant Food. These can also be used to mix in with water as well. (Only mixing at ½ strength when using chemical nutrients, or it will cause nutrient burn!)Other nutrients that have Molybdenum in them are: I think Peters All Purpose Plant food does, as well as Greensand, Lime. Green sand and lime is slow/medium absorption, while Peters All Purpose Plant Food is fast absorption.

Now if you added to much chemical nutrients and or organics,( which is hard to burn your plants when using organics) You need to Flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients.

Picture 1 and 2 is a Molybdenum deficiency in late flowering

 
*BUDS

*BUDS

Well-Known Member
Seems to be def in NPK so it must be the ph is out. Its too late now but next grow make sure ph is 6.5 in waterings a nd feeds.
 
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