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Grow Questions

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Color - Black or grey

Veins - yellow between

Strain - Autoflowering

Strains - Photoperiod

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Goenndalf

What kind of deficiency is this?While lower fan leaves have been yellowing and some of them dying of, the upper fan leaves of the colas with good light exposure show additional dark spots, this developed in only 2 days after watering with plain water (runoff EC 0.53 / 250ppm) Burnt tips were there before.

Week 8

Leaves. Color - Yellow

Leaves. Color - Mottling

Feeding. Deficiences

3 years ago

Solved

Goenndalf

Defoliating Autos in week 7 after stretch I defoliated my AK420 Auto in week 7 and took at least 1/3 off in order to expose bud sites. Do you like it? Would you defoliate even more? Or do you refrain from defoliating autos at all?

Week 7

Leaves. Too many

Techniques. Defoliation

3 years ago

Solved

Goenndalf

More rusty spots See this now on more and more leaves. Only upper fan leaves that get good light exposure seem to be affected from this and also the clawing. Have backed off the nutes completely for now and will add ground egg shells to the water in the hope its a Ca deficiency.

Week 8

Leaves. Curl up

Leaves. Color - Dark-brown

Feeding. Deficiences

4 years ago

Solved

Goenndalf

Rusty Leaves 3 upper fan leaves have "rusty" brown spots on the upper side. Hard to spot, hard to capture on camera. I also have slight "clawing" on many of the upper leaves. Mg/Ca lockout because of nitrogen toxicity possible? Doesn´t seem to be fungi, as there are no spores to rub off.

Week 8

Leaves. Curl up

Leaves. Color - Dark-brown

Feeding. Deficiences

4 years ago

Solved

Goenndalf

Fertilizer switch?Should i switch my fertilizer to somtehing with less nitrogen for the rest of the bloom phase?

Week 8

Feeding. Chemical composition

4 years ago