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Yellow leaves
Pedroyvesstarted grow question 4 years ago
Hello sorry for my english I'm french ;)
Its my first grow with led mars 600 not in a box but in a room.
One plant give yellow leaves
I rinsed with water beacause I gived it 2mL for 1,5L of Platinium Organics ans I increased the distance about the plant.
Thank you for tour help
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Leaves. Color - Yellow
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MrBlocc420answered grow question 4 years ago
Over all your plant looks good 👍🏾 The yellowing in your new growth will be from a sulfur deficiency. I also grow under the mars hydro an the light is pretty intense. How far away from your canopy is your light ?
NobodysBudsanswered grow question 4 years ago
not light burn, so if you liked the internodal spacing before, move the light back to same distance as before.
yellow leaves at top can actually be a toxicity or deficiency. I'm not familiar with platinum organics, so i can't guess as to strength given.
the thinner blades of newer growth makes me think K-tox or P-tox... more likely K-tox based on typical NPK ratios for pot. Give it a second. if it clears up, figure out which part of your fertilizer provides the most K and reduce its portion slightly.
or, feed a bit less overall than you were previously... every plant is different. get used to this process of trial and error. it gets easier if you are systematic about it. nutrient calculators can help you add up ppms from labels (i have a spreadsheet in week 7 ggxww, but not verified for liquid nute calculations, should be, lol, but you can download it if you want.) know what you feed. it helps immenseley later on.
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