Help Needed! Problem with plants first grow
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thats a magnesium issue I'm pretty sure,
what brand of nutes and calmag are you using? What is the PPM and pH? and how are you testing pH?
The burned tips make me think the nutes may be too hot, the taco leaves make me think the light is too close or not enough air flow, and the yellow margins make me think that the pH is off. You do not show much purpling, so calcium is not likely the problem, that makes me think your pH is high.
@Waira, I think this one is on the edge of my ability to help. We need you friend!
what brand of nutes and calmag are you using? What is the PPM and pH? and how are you testing pH?
The burned tips make me think the nutes may be too hot, the taco leaves make me think the light is too close or not enough air flow, and the yellow margins make me think that the pH is off. You do not show much purpling, so calcium is not likely the problem, that makes me think your pH is high.
@Waira, I think this one is on the edge of my ability to help. We need you friend!
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:smoking: GG, mate look a page or so back, all the info's there,...
Phil... the Ca-Mg was for the RO water, to make it more pH stable,.. the leaves show neither Ca nor Mg defc., so the foliar wasn't doing anything really,... the lowers are being eaten up, looks mostly like P defc with the large necrotic patches,... tops look worse, and that's the concern; we can only assume now that the pH readings are close enough... sure wish you had a proper pH probe! that in-pot pH is the key.... the fact that the pH went up in run-off at least shows it's not overly acidic in there and likely not too alkaline... with no micronute supp' handy, all you can do is try a stronger dosage of nutes; look at the bottles and see which has the most Zn/Fe in it,...
Phil... the Ca-Mg was for the RO water, to make it more pH stable,.. the leaves show neither Ca nor Mg defc., so the foliar wasn't doing anything really,... the lowers are being eaten up, looks mostly like P defc with the large necrotic patches,... tops look worse, and that's the concern; we can only assume now that the pH readings are close enough... sure wish you had a proper pH probe! that in-pot pH is the key.... the fact that the pH went up in run-off at least shows it's not overly acidic in there and likely not too alkaline... with no micronute supp' handy, all you can do is try a stronger dosage of nutes; look at the bottles and see which has the most Zn/Fe in it,...
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The CalMag has the most Fe in it (1%) but no Zn.
The GrowBig has 0.05% Zn.
I also rechecked my numbers and realized I've been giving 1/3 of the recommended dosage of nutrients instead of 1/2. I'll try giving more next time and see what happens.
I watered the plant with the nutrient solution 2 days ago, so the soil will likely be moist for another 2 days. Should I do a foliar spray with GrowBig/CalMag or not? Also I have been giving nutes every alternate watering. Should I give nutes the next watering or give just water wait for it to dry again and then given nutes (which would be another 6-7 days from now)?
Thanks for the help and a Happy New Year!!
The GrowBig has 0.05% Zn.
I also rechecked my numbers and realized I've been giving 1/3 of the recommended dosage of nutrients instead of 1/2. I'll try giving more next time and see what happens.
I watered the plant with the nutrient solution 2 days ago, so the soil will likely be moist for another 2 days. Should I do a foliar spray with GrowBig/CalMag or not? Also I have been giving nutes every alternate watering. Should I give nutes the next watering or give just water wait for it to dry again and then given nutes (which would be another 6-7 days from now)?
Thanks for the help and a Happy New Year!!
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...yeah, that's a bit weak,... more food when you can,.. a mild foliar is OK, but you'll need a wetting agent, or a very mild soap like castille to use as a spreader.. this makes the solution coat and stick better, not just bead up,.. spray tops and bottoms of leaves, no need to pH adjust,... do it early in light cycle, so they can dry fully by lights out,...
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