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Nutrient deficiency

  • Thread starter Thread starter Cannakidmallorca
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Nutrient deficiency

Cannakidmallorca 6 Replies 592 Views
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Cannakidmallorca

Cannakidmallorca

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#1
Hi guys, just looking for some advice, I’m growing autos for the first time indoors, I have them in 10 litre pots and have 32 under 3 x 669w hps lighting. I’m growing full organic using only compost teas made of organic compost, bat guano, kelp extract, worm humus ans dolomite, I’m airating the tea for 3 days and using it as a foliar spray and soil drench undiluted, there 12 days old and have grown very well untill the last few days and now a few of them are beginning to show what I believe to be a calcium deficiency, just looking for confirmation. I have a few deformed leaves on 3 out 32 and this deficiency is showing on another 3 . The rest are healthy and look well. Please help before it goes to far.
 

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#3
That's a lot of light for such small plants. I like MH for 3 weeks. But yeah they look like they need ca. Maybe raise the light and stop with the spray first and see if that clears it up.
 
#4
Madbud said:
Probably the foliar spray, and some curl from lightburn. 18/6 or 24/7?
Click to expand...
Yea I have the lights on 400w atm for 18 hours. I will give them a rain water foliar spray and raise the lights a few inches and add some dolomite to some rainwater for a soil drench tomorrow. Thanx for the help.
 
#5
growsince79 said:
That's a lot of light for such small plants. I like MH for 3 weeks. But yeah they look like they need ca. Maybe raise the light and stop with the spray first and see if that clears it up.
Click to expand...
Yea I have the lights on 400w atm for 18 hours. I will give them a rain water foliar spray and raise the lights a few inches and add some dolomite to some rainwater for a soil drench tomorrow. I do have MH bulbs but was advised not to use them for autos ????
 
#6
Cannakidmallorca said:
Yea I have the lights on 400w atm for 18 hours. I will give them a rain water foliar spray and raise the lights a few inches and add some dolomite to some rainwater for a soil drench tomorrow. I do have MH bulbs but was advised not to use them for autos ????
Click to expand...
Autos are light feeders, don’t overdue it with the nutes. Start light and see how they take to them. Not sure if you have fed yet.
 
#7
Temp (air and leaf) and humidity? Leaf temps will give you a lot of info.

Good air flow

To much light. I would stick with HPS personally. But won't get into the why's.

Stop foliar sprays

Feed light as suggested previously.
 
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