leaves brown and turned upwards,?

[burgurs]

Hi All

 

I have a soil indoor grow, i am 4 weeks in flower, the other week plants looked like they had a PK def, i gave sulphate of potash. A week later they still looked PK def, i gave more and also added some trace elements. I ph my water to 6.5ish, they now look as in pics, yellowing sploggy, turning brown and curling upwards, What have i done? and what do i do to fix them??? Please Help.

[NakedMonk]

For starters, take photos without the blurple lights

 

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[burgurs]

 

 

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[burgurs]

 

 

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[burgurs]

 

 

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[burgurs]

 

 

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[pri0015]

My thoughts are leaning towards calcium deficiency/lockout caused by too much pk

 

 

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[pri0015]

 

 

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[billygoat]

What sort of soil?

[NakedMonk]

I'm going to go with Cal lockout as well. In soil it is usually caused by an overload of Phos. You will need to flush your plants pretty rigorously and then top back with a mild nutrient solution with calcium added back into it. You want your calcium to be in liquid form for fastest absorption into the roots. When I say liquid calcium, something like hydrated lime will work. 

 

Another thing to consider is possibly getting rid of those blurple lights as they stress the fuck out of plants. They do grow and produce buds, but also do cause stress on plants. This stress does increase resin production, but on the negative side it can cause herms, low bud yield, and decrease pest resistance. I am not a LED hater, actually quite the opposite, but in the LED world its more of a hit or miss game than it is with HID lights