Nutrient Deficiency?

Home_Grown

Well-Known Member

• Jul 23, 2007

• #1

Hi all.

Was just wondering if this is due to some sort of Nutrient deficiency. My guess would be a Potassium (K) deficiency from what I have read.

Anyone else know whats up with this?

 

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MrKhola

Well-Known Member

• Jul 23, 2007

• #2

ask someone about your feeds and check your temperature... how hot is it dude?

 

Home_Grown

Well-Known Member

• Jul 23, 2007

• #3

Temperature is only around 75 - 85 max! Plus, there are other plants in the same room that are not displaying these symptoms and they are all fed the same.

Could possibly be slight nute burn, however I only nute at 1/4 of the recommended dosage.

 

K

kindprincess

Well-Known Member

• Jul 23, 2007

• #4

what do you use?

 

Home_Grown

Well-Known Member

• Jul 23, 2007

• #5

I know it's not the best but...

Miracle Grow.

 

K

kindprincess

Well-Known Member

• Jul 23, 2007

• #6

what kind? mg makes several different formulas...

 

Home_Grown

Well-Known Member

• Jul 23, 2007

• #7

Miracle Grow
Water Soluble
All Purpose Plant Food (With wetting Agent)

It comes in a plastic pack witch contains blue crystals

15:13.1:12.4

Is this ok?

 

K

kindprincess

Well-Known Member

• Jul 23, 2007

• #8

the npk value is 15-13.1-12.4? is that the time release in the soil? i'm unfamiliar with that particular formula...

w

 

Home_Grown

Well-Known Member

• Jul 23, 2007

• #9

lol no sorry I do not grow in time released fert soil. I grow in a mixture of Coco-Peat and Perlite.

On the box of Miracle Grow it says it's NPK value is 15:13.1:12.4

Miracle-Gro® All Purpose Water Soluble Plant Food - Scotts Australia

Quick facts
This complete fertiliser has an NPK of 15: 13.1: 12.4.
It also contains a range of trace elements.

Click to expand...

 

ravenmyst

Active Member

• Jul 23, 2007

• #10

I switched from shit generic potting mix to miracle grow mix and sand combo. Also after switching to Foxfarm big bloom, I noticed a large jump in growth over m'g. started flowering today with a modified hps security lite.
party on!!!
ps foxfarm site will show you who sells their products thruout the usa.

 

frankiejay

Active Member

• Jul 23, 2007

• #11

Judging from how dark the leaves are, it's probably nute burn. Marijuana is *really* sensitive to nutrients - I'd say much more than any other plants I've grown are. Had to learn that the hard way.

 

Home_Grown

Well-Known Member

• Jul 23, 2007

• #12

Thanks ravenmyst but the growing medium in which i use is fantastic. I have heard good things about foxfarm.

 

Home_Grown

Well-Known Member

• Jul 23, 2007

• #13

Anyone else have any idea's?

 

S

Skibumm208

Well-Known Member

• Aug 7, 2008

• #14

Im havin the same prob really dark green leaves

 

gckrek3

Active Member

• Aug 7, 2008

• #15

if you really must use micracle grow go to lowes and pick up some that comes in a box...made for tomatoes...there are pics of tomatoes on the front...it is 18-18-20...works great for me as i am on a budget...

 

R

rlangley08

Active Member

• Aug 24, 2008

• #16

Definatley burning!!!

 

K

kerouac420

Active Member

• Aug 24, 2008

• #17

hi i have a very big problem with my hempstar plant its 27 days into flowering and the inner top head area is turning are dark purple. its not a purple strain so this is wierd. also the stem has lines of purple discoloration. even some small amounts of the white pistols are turning purple! this plant is growing outdoors in a soil pot. i tried warm water and epsom salts, and now the leaves are shading rusty orange spots. what should i do? i want this plant to bud already!