Nute Burn or Nitrogen Def? (Pictures)

L

luiji

Well-Known Member
Hi guys,

Lattely I've been noticing some of the lower leafs are turning yellow and some even dying, I'm using the Biobizz Bloom, grow, topmax and the Biobizz All Mix soil. Right now they are in their 4 week of flower and I'm following the biobizz quantities witch right now are 1ml/L Grow 2ml/L Bloom 1ml/L Topmax, I'm wattering every 3 days and always feeding. The tops are looking healthy but showing some spots here and there and some of the lower leafs are really yellow.

Other infos: 3Gal pots, 4 x 8 tent, 3 x 600w hps, temps around 26celcius day and 20 night, RH around 50%, good air movement.

https://s22.postimg.org/eb9zn99o1/17036144_10210381459766382_2022381593_o.jpg

https://s22.postimg.org/cbosi3pyp/16936162_10210381460006388_615956984_o.jpg

https://s22.postimg.org/e4rp6fb5d/16990867_10210381460886410_403894973_o.jpg

https://s22.postimg.org/97e4lb969/17015529_10210381461446424_1968981222_o.jpg

https://s22.postimg.org/gc0j835td/17016381_10210381461326421_402418893_o.jpg

https://s22.postimg.org/ovjx5ue5t/17035752_10210381460166392_1111376460_o.jpg
 
H

hibok

Well-Known Member
what's your ppm at and are you rotating between feed and plain water, ie feed , feed , and water?
 
L

luiji

Well-Known Member
I'm not shure what my ppm is...so far I'm only feeding and once a month giving them some plain water or light feed
 
H

hibok

Well-Known Member
is the measurements of feed based on the bottle or is it half or quarter strength
what your ph , the mixture and run off?
 
Grandpa GreenJeans

Grandpa GreenJeans

Well-Known Member
luiji said:
Hi guys,

Lattely I've been noticing some of the lower leafs are turning yellow and some even dying, I'm using the Biobizz Bloom, grow, topmax and the Biobizz All Mix soil. Right now they are in their 4 week of flower and I'm following the biobizz quantities witch right now are 1ml/L Grow 2ml/L Bloom 1ml/L Topmax, I'm wattering every 3 days and always feeding. The tops are looking healthy but showing some spots here and there and some of the lower leafs are really yellow.

Other infos: 3Gal pots, 4 x 8 tent, 3 x 600w hps, temps around 26celcius day and 20 night, RH around 50%, good air movement.

https://s22.postimg.org/eb9zn99o1/17036144_10210381459766382_2022381593_o.jpg

https://s22.postimg.org/cbosi3pyp/16936162_10210381460006388_615956984_o.jpg

https://s22.postimg.org/e4rp6fb5d/16990867_10210381460886410_403894973_o.jpg

https://s22.postimg.org/97e4lb969/17015529_10210381461446424_1968981222_o.jpg

https://s22.postimg.org/gc0j835td/17016381_10210381461326421_402418893_o.jpg

https://s22.postimg.org/ovjx5ue5t/17035752_10210381460166392_1111376460_o.jpg
Click to expand...

Forst thing you said "lower leaves are yellowing, she in week 4 of flower phase"
Brother, it a N deficency.
No worries tho, i got you. DONT ADD ANY NITROGEN! You're in week 4 and a N addittion will delay your flower waves. Get some worm shit and add 1/4 cup per gallon or top dress and water it in. Problem solved.
 
Grandpa GreenJeans

Grandpa GreenJeans

Well-Known Member
luiji said:
It's 100% strength, pH between 6.2 and 6.8, always let it run off a bit
Click to expand...
Stop with the 100% strength now!
Less is always more. The #1 mistake that All Growers make is thinking that the more food they give their plant the better she's going to do. That is completely false. Plants operate on an osmotic process the more salt they have internally in comparison to the soil, the more they will continue to uptake. However if the plants internal salt content or commonly known as EC is less than that of the soil, the soil will actually draw out salt from the plants tissue which is what causes nutrient deficiencies and lockouts due to over-fertilization and salt buildup.
 
L

luiji

Well-Known Member
Grandpa GreenJeans said:
Stop with the 100% strength now!
Less is always more. The #1 mistake that All Growers make is thinking that the more food they give their plant the better she's going to do. That is completely false. Plants operate on an osmotic process the more salt they have internally in comparison to the soil, the more they will continue to uptake. However if the plants internal salt content or commonly known as EC is less than that of the soil, the soil will actually draw out salt from the plants tissue which is what causes nutrient deficiencies and lockouts due to over-fertilization and salt buildup.
Click to expand...
Thanks for the advise, this week I'll be wattering with plain PH'd water and will give them some epsom salt and next week will probably start feeding 3/4 strength. The reason why I was feeding like that is that my nutes are bio so it would be more difficult to over nute them but will try and feed less for the next weeks and see the results
 
Grandpa GreenJeans

Grandpa GreenJeans

Well-Known Member
luiji said:
Thanks for the advise, this week I'll be wattering with plain PH'd water and will give them some epsom salt and next week will probably start feeding 3/4 strength. The reason why I was feeding like that is that my nutes are bio so it would be more difficult to over nute them but will try and feed less for the next weeks and see the results
Click to expand...
Well im not familiar at all with bio nutes but if youve been feeding full strength and you have a N deficency, something isnt right. Chances are youve accumulated too much sodium, and even with organics you can still overfert and lockout.

Do you have a ppm/EC meter? Id be checking your EC everytime before you feed them. I have plants that have been alive for 5 years now and they dont get over 1200ppm, ever, or they'll burn.

Also rember that any changes you make in a soil or "soiless" mix will take 3-5 days to show effect.
Imho, id stick with water for at least 2 waterings and then introduce fertilizer at 1/2 strength. Up it when she shows you she needs more.
 
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