Any ideas?? Please help!! All opinions welcome!

Not sure what to think of this..week two of flower..growing in promix bx, feeding full gh line..lots of yellowing on lower leaves and middle of plant..tops look fine..ph is around 6.3..completely letting dry out between waterings..im ripping my hair out here:wall:14472884037801446045926.jpg1447288593202-448269822.jpg 1447288665499732161820.jpg 14472887591371436391597.jpg
 
Also I've been feeding with almost every watering..read that promix needs everything all the time and the few times I watered twice in a row there were deficiencys..
 

3N1GM4

Well-Known Member
Maybe N def, do you use cal mag? Try flushing with cal mag suppliment and a teaspoon of unsulphered molasses. By flush I mean water them with the recommended amount of molasses and calmag supliment in your water and water them until there is heavy runoff, usually about twice as much water as normal to flush. Calmag will take care of most minor difficencies and the molasses helps rinse the salts from the soil. Unsulphered molasses only
 
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3N1GM4

Well-Known Member
Only feed once per week, if they are thirsty throughout the rest of the week feed only water.
 
Maybe N tox, do you use cal mag? Try flushing with cal mag suppliment and a teaspoon of unsulphered molasses. By flush I mean water them with the recommended amount of molasses and calmag supliment in your water and water them until there is heavy runoff, usually about twice as much water as normal to flush. Calmag will take care of most minor difficencies and the molasses helps rinse the salts from the soil. Unsilphered molasses only
Yeah I use Cal mag and their silica additive.. Have back off the Cal mag a bit since started flowering. I was considering flushing but how bad will that mess up my flowering?
 

Velvet Elvis

Well-Known Member
drying out too much, give a nice clean watering once a week with 10% run off. if those are 5 gallon pots I would water around 3/4 to 1 gallon at a time. 3 times a week
 

Velvet Elvis

Well-Known Member
BTW Ive used promix for nearly a decade now. what are your dosages on 3 part per gallon? and clearly not N toxicity but N deficiency. they are cannibilizing the fan leaves for nitrogen
 
BTW Ive used promix for nearly a decade now. what are your dosages on 3 part per gallon? and clearly not N toxicity but N deficiency. they are cannibilizing the fan leaves for nitrogen
I've been following the gh online feeding chart to a t..a little extra for my widows cus they seem to be nute whores and had def problems till I ramped them up a bit..my first thought was N but am feeding what gh recommends..
 

3N1GM4

Well-Known Member
Calcuim accelerates the absorbtion of nitrogen, too much calmag can cause n tox symptoms
 
thought you said dry out completely before watering?
I'm pretty sure there almost completely dry before I water..I alwàys wait till there very light when I pick them up...I've read you want to let them dry up pretty good before you water..you think i should water before that?how much extra N would you add to fix the N def? Watering might be twice a week..every three or four days has been the usual
 

Velvet Elvis

Well-Known Member
Roots might be dryng up. I would leave out the cal mag. there should be enough N in in the bloom. wouldnt hurt to add 5ml per gallon grow.

only for a week or so. or top dress with worm castings and or blood meal would be better. they wont go green again, maybe a little, but will stabilize. Ive been here done that dozens of times by now.

it will be okay as long as you do not freak them out anymore. maybe measure your runoff, to see if you are in lock out somehow
 

TheFuture

Well-Known Member
I would say drop your pH a little to 5.8 along with giving the increased Calcium/Magnesium/Iron. For good measure I would flush them to 200ppm or so before feeding the new mixture. If everything has been going alright and all of the sudden this has happened, it could be because of a few things:
The plant has been switched over to flowering for two weeks. it has come out of transition lag period and is now consuming the food it was leaving alone during the transition. Because it is building flower mass it has consumed the fertilizer and has moved on to sugar in the older leaves, turning them chlorotic.
Otherwise, you may have some bugs or fungus/bacteria.
I feel it has just come out of transition and you need to increase your Ca Mg Fe and even a little bump of N. Stop using Silica now because it can induce the formation of some seeds. 1tsp/gal of molasses until your plants are dark hunter green then back off.

Happy gardening!
 
I would say drop your pH a little to 5.8 along with giving the increased Calcium/Magnesium/Iron. For good measure I would flush them to 200ppm or so before feeding the new mixture. If everything has been going alright and all of the sudden this has happened, it could be because of a few things:
The plant has been switched over to flowering for two weeks. it has come out of transition lag period and is now consuming the food it was leaving alone during the transition. Because it is building flower mass it has consumed the fertilizer and has moved on to sugar in the older leaves, turning them chlorotic.
Otherwise, you may have some bugs or fungus/bacteria.
I feel it has just come out of transition and you need to increase your Ca Mg Fe and even a little bump of N. Stop using Silica now because it can induce the formation of some seeds. 1tsp/gal of molasses until your plants are dark hunter green then back off.

Happy gardening![/QUOTE ]
I'm positive there is no bugs\ fungus etc. So your saying feed more Cal mag and a bit of N..as far as molasses should I use something like hibrix or will regular house hold stuff work the same? Also yes I've been reading more and more that a soilless mix like promix should be around the5.8 mark..but I've been trying to avoid using ph up and down cus my nute mix comes out at like 6.3 after I mix it..
 

tropicalcannabispatient

Well-Known Member

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