Early yellowing from bottom to mid of the plant early in flower(4 weeks)

[Howard Marks]

Hi

I have 3 plants in soil, they are 4 weeks into 12/12 light schedule. One of them is still green and healthy, one of them begins to have yellow leaves but nothing to alarm and one of my plants looses their leaves and have severe yellowing leaves from bottom till middle of the plant.

They are growing in soil mixed with perlite in 18 liter pots, im watering them with tap water that have a PH of 7,i dont know the run off PH cause i dont have a PH meter, no EC or PPM meters as well.
I have feed them with nutrients from Biobizz(biogrow and biobloom), i havent stooped to add the grow nut in flower as i know they need some in stretching stage so i mixed the bloom nut with the minimum dose of grow nut and last week i upped the grow nut in the plant that have this problem of loosing fast her leaves.

From what i can judge its a N deficiency but it seems i cant fix it by rising the levels of N, tip of leaves are already burned a little bit.
Im just afraid that i will loose all my leaves before i can harvest the plant.

Its a 10 weeks flowering plant(Barneys farm LSD)
I attached a picture, can you give me please some advices? What could be wrong? I think Biobizz nutrients has not micronutrients in it as i heard from somebady. Could be some other deficiency other than N?

Im just afraid that i will loose this plant, can she survive another 6 weeks?

Thanks in advance for your help guys





Top still looks good but she drops 1-2 leaves everyday so im afraid she wont make it another 6 weeks.

 

[MaynardG_Krebs]

Hi

I have 3 plants in soil, they are 4 weeks into 12/12 light schedule. One of them is still green and healthy, one of them begins to have yellow leaves but nothing to alarm and one of my plants looses their leaves and have severe yellowing leaves from bottom till middle of the plant.

They are growing in soil mixed with perlite in 18 liter pots, im watering them with tap water that have a PH of 7,i dont know the run off PH cause i dont have a PH meter, no EC or PPM meters as well.
I have feed them with nutrients from Biobizz(biogrow and biobloom), i havent stooped to add the grow nut in flower as i know they need some in stretching stage so i mixed the bloom nut with the minimum dose of grow nut and last week i upped the grow nut in the plant that have this problem of loosing fast her leaves.

From what i can judge its a N deficiency but it seems i cant fix it by rising the levels of N, tip of leaves are already burned a little bit.
Im just afraid that i will loose all my leaves before i can harvest the plant.

Its a 10 weeks flowering plant(Barneys farm LSD)
I attached a picture, can you give me please some advices? What could be wrong? I think Biobizz nutrients has not micronutrients in it as i heard from somebady. Could be some other deficiency other than N?

Im just afraid that i will loose this plant, can she survive another 6 weeks?

Thanks in advance for your help guys

[URL=https://www.icmag.com/ic/picture.php?albumid=45045&pictureid=1081976&thumb=1]View Image[/url]

[URL=https://www.icmag.com/ic/picture.php?albumid=45045&pictureid=1081977&thumb=1]View Image[/url]

Top still looks good but she drops 1-2 leaves everyday so im afraid she wont make it another 6 weeks.

[URL=https://www.icmag.com/ic/picture.php?albumid=45045&pictureid=1081979&thumb=1]View Image[/url]

Those plants look happy as hell to me! Yellowing leaves during flowering pretty normal and it usually is the lower leaves are the first to show the symptoms. pH of runoff is something that a lot of people put way to much importance to, but do yourself a favor and get a meter... they can be had cheap enough by watching the listings on eBay.You're best to not try to remedy this situation as it's perfectly normal and you might cause some REAL problems by chasing a 'not so real' problem. Good luck!

mgk

 

[gh0stm0de]

agreed with maynard... they look like peak flower, healthy and a big hungry. however, in a week or 2 they will want way less, then want to be flushed, so like maynard said it may be better not to "fix" what aint really broke..

this said, you have several issues going on, definitely potassium(k) hunger, normal flower issue especially at this peak phase. your explanation about absence of micros could help explain things. if there is a time to add P/K boosters, now's it..


although it does kinda look hungry for N to me, its NOT something most strains eat during flower especially not late flower. only strain I've had that wanted N in flower was a 100 day sativa that just kept stretching


hey, GREAT job though overall

 

[gh0stm0de]

I looked at that pic again and it DOES look like it has 6 weeks to go and yes you can keep it alive, hit that thang with beefed up ppm, it needs more dont you think?

 

[Howard Marks]

I know yellowing in flower its pretty normal but i tell you that leaves get yellow and they fall of fast and forth week of flowering its pretty early.
The other 2 LSD are fine, 1 of them it just starting to get yellow bottom leaves and the other its yellowing but alarmingly fast as this one in the pics. I have treated them the same, same nutrients, dosage, same soil and post yet they are so different.
Im just afraid that she wont finish her 10th week, will see.

 

[MaynardG_Krebs]

I know yellowing in flower its pretty normal but i tell you that leaves get yellow and they fall of fast and forth week of flowering its pretty early.
The other 2 LSD are fine, 1 of them it just starting to get yellow bottom leaves and the other its yellowing but alarmingly fast as this one in the pics. I have treated them the same, same nutrients, dosage, same soil and post yet they are so different.
Im just afraid that she wont finish her 10th week, will see.

Are these from seed or clones? If they are from seed, it's entirely possible what you're seeing is different pheno traits. If they're from clone, it's probably a variable in either your soil or something of that nature. They still look pretty damn healthy..

mgk

 

[gh0stm0de]

another very good point - REGARDLESS if they are different phenos or the same clone, one clearly wants more food than the others, so I think it would be a mistake to continue to feed the same to all. perhaps mix the nutes, and after feeding the others add a tad more for the problem child

 

[Howard Marks]

Are these from seed or clones? If they are from seed, it's entirely possible what you're seeing is different pheno traits. If they're from clone, it's probably a variable in either your soil or something of that nature. They still look pretty damn healthy..

Seeds

mgk

another very good point - REGARDLESS if they are different phenos or the same clone, one clearly wants more food than the others, so I think it would be a mistake to continue to feed the same to all. perhaps mix the nutes, and after feeding the others add a tad more for the problem child

Got it, thanks!!