Is this a calmag issue?

midgesmith

Active Member
Hi, I just planted out this week in the greenhouse and my auto-duck plant's leaves are going brown and crispy. They're in compost, coco, perlite mix. They've not been allowed to dry out too much and the water is ph 6.8 ish, no nutrients, 3 weeks old.

I made a dilute liquid seaweed feed today and gave that, in case it is a severe calmag thing or just missing basic nutrients, but previous plants haven't reacted like this and so severely?

Can anyone tell if it is a calmag issue, or something else?

It'd be great if anyone can offer some advise before she dies completely. Even the new leaves are curling up and going weird.

Cheers,

Midge
 

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Budzbuddha

Well-Known Member
Poor duck …. Isnt there some ready mix bagged garden soil available? You are throwing things at it and it sound nutritiously deficient ….
Seriously …. You state its an auto. Autos hate stressors. It may be stunted. Transplant into a complete mix and see what happens - let the medium do the feeding -
 

midgesmith

Active Member
This is my 5th auto crop, so I am not an expert, but repeating things that have worked for me previously, or been recommended.

The soil is a mix I have used successfully before, being about 70% decent compost, 20% perlite and 10% coco but unless something weird is going on with the roots, something in the soil or water is messing it up - by omission or inclusion. The same compost mix is has done fine for the last 2 auto seasons indoors in parallel with some Biobizz Allmix. I didn't look at feeding that lot until about week 5 as there were no significant problems with those. This plant doesn't seem to have been going long enough to deplete the soil.

Some folk in another forum recommended liquid seaweed in veg if there seemed to be some doubt over basic nutrition and cal /mag levels.

I've not seen this pattern of deficiency before though... Do you think it is less risky to try to transplanting the plant at 3 weeks old, than to try to diagnose and feed the missing nutrients? I'm surprised, but I could whack it into some all-mix in a bigger pot.

I suppose there's nothing to lose if she's going to completely die if things stay the same...
 
Last edited:

ZuuTeD614

Well-Known Member
This is my 5th auto crop, so I am not an expert, but repeating things that have worked for me previously, or been recommended.

The soil is a mix I have used successfully before, being about 70% decent compost, 20% perlite and 10% coco but unless something weird is going on with the roots, something in the soil or water is messing it up - by omission or inclusion. The same compost mix is has done fine for the last 2 auto seasons indoors in parallel with some Biobizz Allmix. I didn't look at feeding that lot until about week 5 as there were no significant problems with those. This plant doesn't seem to have been going long enough to deplete the soil.

Some folk in another forum recommended liquid seaweed in veg if there seemed to be some doubt over basic nutrition and cal /mag levels.

I've not seen this pattern of deficiency before though... Do you think it is less risky to try to transplanting the plant at 3 weeks old, than to try to diagnose and feed the missing nutrients? I'm surprised, but I could whack it into some all-mix in a bigger pot.

I suppose there's nothing to lose if she's going to completely die if things stay the same...
Water... what kind of water tap, water rain water.. do you PH it?
 

Southernontariogrower

Well-Known Member
Hi, I just planted out this week in the greenhouse and my auto-duck plant's leaves are going brown and crispy. They're in compost, coco, perlite mix. They've not been allowed to dry out too much and the water is ph 6.8 ish, no nutrients, 3 weeks old.

I made a dilute liquid seaweed feed today and gave that, in case it is a severe calmag thing or just missing basic nutrients, but previous plants haven't reacted like this and so severely?

Can anyone tell if it is a calmag issue, or something else?

It'd be great if anyone can offer some advise before she dies completely. Even the new leaves are curling up and going weird.

Cheers,

Midge
Duck foot wèed? Up ph quit lowerin asap! Lime asap! Acidic soil! Imo only! Just took a quick glance! Sorryy am drunk and cant type! But will take second look!
 

Southernontariogrower

Well-Known Member
Hi, I just planted out this week in the greenhouse and my auto-duck plant's leaves are going brown and crispy. They're in compost, coco, perlite mix. They've not been allowed to dry out too much and the water is ph 6.8 ish, no nutrients, 3 weeks old.

I made a dilute liquid seaweed feed today and gave that, in case it is a severe calmag thing or just missing basic nutrients, but previous plants haven't reacted like this and so severely?

Can anyone tell if it is a calmag issue, or something else?

It'd be great if anyone can offer some advise before she dies completely. Even the new leaves are curling up and going weird.

Cheers,

Midge
Yo! Stealth farmer! Where d you get thatt? Say the fucken grow shop or pharm. Where?
 

midgesmith

Active Member
Water... what kind of water tap, water rain water.. do you PH it?
It is tap water that has been standing a couple of days. It is fine for the other strains I grow in similar and other media. I don't pH it as I have been advised many times not to bother in soil. It is pH 6.8 as it comes out of the tap and adding any nutrients - as I would later in the cycle, brings the pH of the feed down to about 6.4

I have organic and inorganic pH adjusters though as I used to pH religiously. They can be used if it seems the most likely bet for causing a lockout...

Is that what you are thinking?
 
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