Is this Nitrogen Deficiency?

DB&ST

Well-Known Member

Dec 23, 2010

• #1

Is this Nitrogen Deficiency?



Edges of the older leafs are yellowing.
plants are 30 days in veg. only started giving them nutes yesterday after i decided that it might be N deficiency.

Watered them with a 1/2 dose of BioGrow.

What do you think?

 

W

wiseguy316

Well-Known Member

Dec 23, 2010

• #2

look over water maybe a lil nute burn,,don't see any signs of nitrogen def

 

W

wiseguy316

Well-Known Member

Dec 23, 2010

• #3

maybe too much heat also

 

DB&ST

Well-Known Member

Dec 23, 2010

• #4

wiseguy316 said:

maybe too much heat also

Click to expand...

they grow outside on the porch, and it's winter.. so it's not heat..
and the problem came up before i ever given them nutes, so it can't be nute burn..

 

W

wiseguy316

Well-Known Member

Dec 23, 2010

• #5

what type of soil is it,,yes it can be nute burn

 

DB&ST

Well-Known Member

Dec 23, 2010

• #6

potting soil from a near by growshop.. supposed to be good for MJ, lot's of satisfied costumers..

 

K

ken 2010

Member

Dec 23, 2010

• #7

if you go to forum and go to marijuana plant problems there is a thread there that will tell you hope that helps

 

klonerone

Active Member

Dec 23, 2010

• #8

I'll bet it a PH prob causing a lockout....cause that soil looks plenty rich......test the PH....I would'nt give that plant anything to eat....the leaves look like it's getting plenty to eat....PH/ soil and water.good luck

 

DB&ST

Well-Known Member

Dec 23, 2010

• #9

don't know the soil pH.. but i do give them 6.5 pH water..
next time i water i'll check the runoff..

 

W

wiseguy316

Well-Known Member

Dec 23, 2010

• #10

i was leading towards hot soil , takes a lil bit for the plant to use up the nutes in the soil.

 

DB&ST

Well-Known Member

Dec 24, 2010

• #11

you mean soil getting hot? i don't think so.. it's not over 75 in the day, and in the night it's cool...

 

SCCA

Active Member

Dec 24, 2010

• #12

i have to agree that it looks like nute burn from very rich soil. what brand of soil do you use? how cold is it at night? it may be a reaction to colder temps. could you get a clearer pic of the leaf? it might be your camera, but there appears to be some spots on the upper surface of the leaf that could be bug damage.

 

DB&ST

Well-Known Member

Dec 24, 2010

• #13

ill try to get a better picture..
the spots are just on camera.. the lower leafs are a little dirty from dust that was in the sky.

at nights it get's to 60 maybe.. but not any lower.

 

*BUDS

Well-Known Member

Dec 26, 2010

• #14

DB&ST said:

Is this Nitrogen Deficiency?

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Edges of the older leafs are yellowing.
plants are 30 days in veg. only started giving them nutes yesterday after i decided that it might be N deficiency.

Watered them with a 1/2 dose of BioGrow.

What do you think?

Click to expand...

overwatered, and is that mildew on leaves.

 

DB&ST

Well-Known Member

Dec 26, 2010

• #15

*BUDS said:

overwatered, and is that mildew on leaves.

Click to expand...

no, just the camera.. the bottom leafs are dusty because there was some dust in the sky..

 

DB&ST

Well-Known Member

Jan 3, 2011

• #16

well ill have to say that after ruling all the other possibility's i think that it was just overwatering..
after i watered and fed them i waited about a week and only then they needed more water. i guess it's better to wait a little longer before you water just to be sure..

Now they're looking green and healthy
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