phosphorus deficiency?

lazypothead420

lazypothead420

Well-Known Member
Okay, so I'm thinking this is a phosphorus deficiency but I'm not sure. I forgot to add lime to my soil so I had a slight cal deficiency. I added lime 2 tbsp per gal and think I may have went a lil overboard by giving them cal mag 1/4tsp per gal and locked something out... What do you guy's think?
 

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lazypothead420

lazypothead420

Well-Known Member
The ph of my water is usually between 6.8 - 7.0 and my soil ph should be 7.0 because of the lime. I'm not getting any more brown spots from the cal def so I think I'm good there but no clue why the phosphorus deficiency is there. They've been getting the regular once every 2 weeks 2tbsp per gal 4-4-4 topdress and 1tbsp per gal Neptune's harvest seaweed and fish fertilizer once every 2-3 weeks. Along with a foliar of 1/4tsp Epsom & protekt once a week.
 
HydoDan

HydoDan

Well-Known Member
lazypothead420 said:
The ph of my water is usually between 6.8 - 7.0 and my soil ph should be 7.0 because of the lime. I'm not getting any more brown spots from the cal def so I think I'm good there but no clue why the phosphorus deficiency is there. They've been getting the regular once every 2 weeks 2tbsp per gal 4-4-4 topdress and 1tbsp per gal Neptune's harvest seaweed and fish fertilizer once every 2-3 weeks. Along with a foliar of 1/4tsp Epsom & protekt once a week.
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Sometimes they show a deficiency when there is none, it's usually an uptake issue related to ph.. Some are more sensitive than others.. They look like they've grown thru it!!
 
PadawanWarrior

PadawanWarrior

Well-Known Member
lazypothead420 said:
Okay, so I'm thinking this is a phosphorus deficiency but I'm not sure. I forgot to add lime to my soil so I had a slight cal deficiency. I added lime 2 tbsp per gal and think I may have went a lil overboard by giving them cal mag 1/4tsp per gal and locked something out... What do you guy's think?
Click to expand...
pH issue is my thought. What type of lime and how did you add it? Did this happen after you added the lime?
 
lazypothead420

lazypothead420

Well-Known Member
I used the lime in the pic. I topdressed with 2tbsp per gal. They were already starting to purple and had a few spots from a calcium deficiency before the lime. The blotches that look like a phosphorus deficiency began around a week and a half after I added the lime. Wouldn't the lime buffer my ph to 7.0?
 

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