deficiency problem?

Zaccoates

Member
Have 4 THC bomb feminsed in a 100x100x200 tent 400watt hps, feeding biobizz nutrients in the biobizz lightmix soil there about 4 weeks into flower vegged them for 4 weeks. it appears to be starting on the top fan leaves going down, only on two plants, I put some magne+ in with the water today, hoping this helps can anyone tell me which deficiency it is? thanks I have more pics if needed
 

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Grandpa GreenJeans

Well-Known Member
Have 4 THC bomb feminsed in a 100x100x200 tent 400watt hps, feeding biobizz nutrients in the biobizz lightmix soil there about 4 weeks into flower vegged them for 4 weeks. it appears to be starting on the top fan leaves going down, only on two plants, I put some magne+ in with the water today, hoping this helps can anyone tell me which deficiency it is? thanks I have more pics if needed
Classic calcium deficiency.
 

Alienwidow

Well-Known Member
Not tying to call u out, but dude is only in the 4th week of bloom and his leaves are not just clorotic, but necrotic. How is this nothing to worry about?
I dont think its worriable either. Minor cal def. one feeding and hell be back on track. I dont even run calmag while i run sugar for the last two weeks. Too bad that he didnt run calmag because it would have given more girth to the buds. Calcium might as well be macro. Mpo.
 

Grandpa GreenJeans

Well-Known Member
I dont think its worriable either. Minor cal def. one feeding and hell be back on track. I dont even run calmag while i run sugar for the last two weeks. Too bad that he didnt run calmag because it would have given more girth to the buds. Calcium might as well be macro. Mpo.
I agree to an extent. Calcium is a immobile element. It doesn't fix itself in 1 or 2 watering like nitrogen does or even magnesium. With a calcium deficiency, if it's progressed past tiny dots, it's going down hill and the plants production will suffer. I suppliment CA and MG on a regular basis but mostly due to my water being ro/di. It's a tad to late for foliar IMHO and any calcium that's fast acting like Cal nitrate is not good in this stage of bloom due to the extra N.
 

Labs Dexter

Well-Known Member
I agree to an extent. Calcium is a immobile element. It doesn't fix itself in 1 or 2 watering like nitrogen does or even magnesium. With a calcium deficiency, if it's progressed past tiny dots, it's going down hill and the plants production will suffer. I suppliment CA and MG on a regular basis but mostly due to my water being ro/di. It's a tad to late for foliar IMHO and any calcium that's fast acting like Cal nitrate is not good in this stage of bloom due to the extra N.
I had same issues using the lovely queensand council hard water, so switched to bottled and don't come across that issue. My other deff was pk too wich I didn't know until two grows later lol. Same issues every time so apsaloutley prepared and things are smoother now and hoping to see the difference in bud size.
 

Alienwidow

Well-Known Member
I agree to an extent. Calcium is a immobile element. It doesn't fix itself in 1 or 2 watering like nitrogen does or even magnesium. With a calcium deficiency, if it's progressed past tiny dots, it's going down hill and the plants production will suffer. I suppliment CA and MG on a regular basis but mostly due to my water being ro/di. It's a tad to late for foliar IMHO and any calcium that's fast acting like Cal nitrate is not good in this stage of bloom due to the extra N.
Ya thats why i said giver a quick shot. I wouldnt foliar this late.
 

Grandpa GreenJeans

Well-Known Member
Too much work. Just make eeee better next time. I feed calmag from week three of veg until week - 3 in bloom. Then theres no issues.
Yeah, any commercial soil will have more than enough calmag for the lime to last the first 3 weeks. In my experience, the need varies from strain to strain.
Lol first rule a grower needs to learn is how to read their plants.
 

Alienwidow

Well-Known Member
Yeah, any commercial soil will have more than enough calmag for the lime to last the first 3 weeks. In my experience, the need varies from strain to strain.
Lol first rule a grower needs to learn is how to read their plants.
Theyre all the same. All ov em. Feed, water, harvest, happy.
 

Labs Dexter

Well-Known Member
Yeah, any commercial soil will have more than enough calmag for the lime to last the first 3 weeks. In my experience, the need varies from strain to strain.
Lol first rule a grower needs to learn is how to read their plants.
That's what I say( read your plants not the label or what someone else has done...) it's how I learned... Wise words my man
 

Labs Dexter

Well-Known Member
Here are same land race same nutrients but one is burnt other is loving it.... no plants are the same mate its where the studying individuals comes in IMG-20151012-WA0004.jpg
Grandpa GreenJeans bump one wise man
 

Grandpa GreenJeans

Well-Known Member
I had same issues using the lovely queensand council hard water, so switched to bottled and don't come across that issue. My other deff was pk too wich I didn't know until two grows later lol. Same issues every time so apsaloutley prepared and things are smoother now and hoping to see the difference in bud size.
Do you ever reuse soil? I do, and I am having a problem currently from a mix I made last year. I threw some mater transplants in it because it's super airy, and they almost tripled in size within a 5 day peirod, however I think that because the mix is primarily comprised of coir, and it's a reuse, the Mag is depleted and I feel it has held onto some residual salts. I've recently re potted into sunshine mix #4 with 1tbsp/ trade gallon of fine powdered lime. It's been 2 days now so well see. But their still growing daily, even though there mottled. Early stage Mag deficiency, ie... interveinal chlorosis.

And now to my point regarding your post, I have come to the realization that a soil test is critical for this mix to actually perform. I'm a organic guy and a soil test is the only way to know exactly what's off. I have college university's where I live, in a big city where I can send mine too.(UW MADISON ) and they charge around $ 25 for a basic NPK test. Something mabey you'd want to look into. Soil can get very expensive over time
 

Labs Dexter

Well-Known Member
Do you ever reuse soil? I do, and I am having a problem currently from a mix I made last year. I threw some mater transplants in it because it's super airy, and they almost tripled in size within a 5 day peirod, however I think that because the mix is primarily comprised of coir, and it's a reuse, the Mag is depleted and I feel it has held onto some residual salts. I've recently re potted into sunshine mix #4 with 1tbsp/ trade gallon of fine powdered lime. It's been 2 days now so well see. But their still growing daily, even though there mottled. Early stage Mag deficiency, ie... interveinal chlorosis.

And now to my point regarding your post, I have come to the realization that a soil test is critical for this mix to actually perform. I'm a organic guy and a soil test is the only way to know exactly what's off. I have college university's where I live, in a big city where I can send mine too.(UW MADISON ) and they charge around $ 25 for a basic NPK test. Something mabey you'd want to look into. Soil can get very expensive over time
I do reuse but I flushed or leeched it with bottled water and calmag half recommend dose. I did this to one plant to see if it is possible... I did used to just used to throw used soil to my grass and vegetables outside that I grow yearly but they are nearly fully soiled up lol. That's why I did a tester and did some reading regarding reusing soil and mainly it's like you said cal mag, so I washed her up with it and see what happens. I did try to be as organic as possible but my lady's show deffs and affects my bud size and yield tho its personal I like to make the lady's happier.. It's a learning curve I shall see how it goes.
And I'm UK the f#ckers would call the Popo.
 

Zaccoates

Member
A few more leaves yellowed and died off but I believe the problem is now resolved. I put mg+ in and started using bottled water which has worked, there near the end of week 5 now since I switched to flower, the two on the right are doing great compared to the two on the left, thanks for your help people cant wait till harvest :D
 

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