Yellow Lower Leaves - How long to go away after adding nitrogen?

hopefullydonfail

hopefullydonfail

Member
I know there are multiple threads and guides about this.

Info:

Light: 600W HPS
Temps: 70-76F
Soil: Fox Farms Ocean Forests
Nutrients: Fox Farms Liquid
Humidity 30-40%
Age: 20 Days

About 5 days ago I noticed multiple plants with the lower leafs yellowing. Up until now I hadn't added any nutrients. Once I noticed this I hit them with a 1/4 strength dose of Grow Big & Big Bloom. Didn't notice any difference. I hit them with a 1/2 dose yesterday and still didn't notice any difference. Should I wait a few days before adding anymore nutrients?

Thanks!
 
zack66

zack66

Well-Known Member
Don't feed again till after running straight water. It takes a few days to start seeing results. Why are you feeding bloom nutes during veg? Any pics?
 
shakti

shakti

Active Member
they look exacly like my plants over a week ago, it happend i had nitrogen deficiency and i was worried, the growth stunted , so i immedietaly checked ph of water plus nutriens.it was too high, i gave them more nutriens with accurate ph balance and it seems new growth appeared after few days, yesterday i fed them again giving 5 ml per liter as they were so hungry ... today they look so green and fresh finally.... hope its gonna stay the same...you have to be patient and be sure your level of ph is perfect , good luck mate :)
 
keep it real.

keep it real.

Well-Known Member
it does look alot like a sulfur def but the bottom leafs are yellowing and sulfur def is pretty rare are you using RO water? does your nutes supply sulfur?
 
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