Potassium Deficiency?

CaliSun

Member

• Jun 3, 2010

• #1

I'm using the foxfarm lineup of nutes, and FFOF soil. Could this be a potassium deficiency? Everything was looking great until a week of molasses and these spots show up. Anyone have any thoughts, I'm curious because these spots are moving up the plant towards the main cola, and this is my first time.

Shes at the end of week 5 flowering.

 

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calismoke28

Active Member

• Jun 3, 2010

• #2

are you using the hole line? the solubles for a pk spike?

 

CaliSun

Member

• Jun 3, 2010

• #3

I haven't been using the Growbig, however I did add that to my last feeding solution. The PH is between 6.0-6.5.

 

calismoke28

Active Member

• Jun 3, 2010

• #4

ok im taking it you know nothing about there solubles. they are "open sesame" beastie bloomz" and "cha ching".. they are the PK spike (potassium & phosphorus) that you need in flowering stage! here is a good feeding schedule. http://www.foxfarmfertilizer.com/soilfeed.pdf

 

calismoke28

Active Member

• Jun 3, 2010

• #5

are you growing in soil or a hydro medium?.....http://www.foxfarmfertilizer.com/hydrofeed.pdf

 

Balzac89

Well-Known Member

• Jun 3, 2010

• #6

I wouldn't worry about it. She looks fine.

 

below0

Active Member

• Jun 3, 2010

• #7

I think Potassium def start from the outsides, that looks like its starting from the inside veins, looks maybe like phos Toxicity.

Flush the soil, with a mild dose of nutes.

 

CaliSun

Member

• Jun 3, 2010

• #8

Anyone else have any other opinions or "second that"?

Thanks for the responses!

 

calismoke28

Active Member

• Jun 4, 2010

• #9

well i strongly believe that in flowering mode you got to use some sort of PK spike. what brand you choose is up to you because every brand makes one. usually one thats used in the second week trough fifth witch would be your bulk and then a ripe that you'll use in the fifth and sixth week then flush for the last two!!! (something like that anyways)