needing some help with this one,think its severe potassium deficiency,only on lower leave,top still fully green next node up couple of brown dots at edge of leave,never had a deficiency as early as this,only feeding formulex 4ml/l just now,only couple of weeks into this one ,in rockwool temps fine and humidity mid 50's under 125w cfl 18/6 thanks.
K deficiency i think
- Thread starter joe9000
- Start date
needing some help with this one,think its severe potassium deficiency,only on lower leave,top still fully green next node up couple of brown dots at edge of leave,never had a deficiency as early as this,only feeding formulex 4ml/l just now,only couple of weeks into this one ,in rockwool temps fine and humidity mid 50's under 125w cfl 18/6 thanks.
Renfro
Well-Known Member
I bet you have an incomplete feed. I can't find any labels for that product that indicate the nutrient percentages. I suspect it's a very weak feed for clones and seedlings.
Probably time to find a complete nutrient line to feed your plant properly.
Whats your pH running? You are in rockwool, is it a top feed hand water or a different setup like a flood and drain?
Remember, cool temps = slow growth and limited nutrient uptake.
Also, consider getting some more lighting.
Probably time to find a complete nutrient line to feed your plant properly.
Whats your pH running? You are in rockwool, is it a top feed hand water or a different setup like a flood and drain?
Remember, cool temps = slow growth and limited nutrient uptake.
Also, consider getting some more lighting.
Yup thanks for reply,do have bigger light but i always start them under the cfl until flower room empty,just always managed with formulex until put into nft,never seen this start so early on.I suppose every plant different but think your right need to get grow i think.