3 weeks flowering, soil got a deficiency and cant figure out what it is!

streets

streets

Well-Known Member
im using fox farm nutes, all six of them at the recommended dosage that fox farm schedules at one gallon once a week and also water phed to 6.5 once a week in betweens ferts. ph is 6.5 of all water/fert mixes that i add to the water.. these plants vegged for 2.5 months, and now are in week 3 of flowering. no co2. temp is 77 during lights on, 65 during lights off. besides using the ferts i also foliar spray once a week with a 1/6 dosage of a nitrogen ferts and water phed at 6.5. please give me some advice... the whole plants have a very light green/yellow appearance!!!

also some of my other plants are getting bright yellow leaves, while the rest of the plant is staying fairly dark green... any ideas? there the larger leaves also

tonight i added 1/2 gallon to each plant with a dose of recommended fox farm nitrogen fert (grow big)

any other info just ask!
 

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streets

streets

Well-Known Member
they are in 3 gallon pots as well and have been since 3 weeks after i cloned them


strain is church
 
streets

streets

Well-Known Member
burn than y is the hole plant turning light green? Some larger leaves are more affected.. Suggestion?!?!
 
streets

streets

Well-Known Member
hey does anyone have any suggestions for me it wud be great, I'll check and rep in the morning
 
Snow Crash

Snow Crash

Well-Known Member
No, it is burn. Technically a nutrient toxicity. Some element has built up to an unacceptable level. The over-abundance of this element in the media creates and electrical discrepancy between the charge of the plant and the charge of the media. This can actually draw elements out of the plant to establish an electrical equilibrium, like high pressure to low pressure.

Incorporating run off helps keep build up like this from gradually accumulating. Just imagine that if every time you fed that you were using 100ppm too much. Over time that 100ppm has just added and added and become 1,000ppm too much of some solitary element and the plant just cannot take it anymore.

The more nutrients you add the worse things are going to get.

The dead give-a-way are the tips of your plant. The brown toasting of them and the way it looks like Magnesium and Potassium are in short supply is pretty typical also. Usually when an excess of Phosphates are present (negatively charged) which can pull positively charged Potassium, Magnesium, and NH4 from the plant, or at least keep it from being taken up to keep the equilibrium in the media. Then again it could be an over abundance of Calcium, competing with other elements for uptake. These issues are pretty hard to nail down but fortunately there is one solution regardless of what element is in excess.

I recommend you flush your media with about 2 gallons of water per gallon of soil. This won't flush it clean, but it will remove any build up of nutrients. Then you can continue feeding at about 80% strength from here on out. Dial back big time on anything that has more Phosphorus than Potassium. You probably won't need that stuff until about week 5 of flowering at the earliest.
 
*BUDS

*BUDS

Well-Known Member
streets said:
im using fox farm nutes, all six of them at the recommended dosage that fox farm schedules at one gallon once a week and also water phed to 6.5 once a week in betweens ferts. ph is 6.5 of all water/fert mixes that i add to the water.. these plants vegged for 2.5 months, and now are in week 3 of flowering. no co2. temp is 77 during lights on, 65 during lights off. besides using the ferts i also foliar spray once a week with a 1/6 dosage of a nitrogen ferts and water phed at 6.5. please give me some advice... the whole plants have a very light green/yellow appearance!!!

also some of my other plants are getting bright yellow leaves, while the rest of the plant is staying fairly dark green... any ideas? there the larger leaves also

tonight i added 1/2 gallon to each plant with a dose of recommended fox farm nitrogen fert (grow big)

any other info just ask!
Click to expand...
Man thats a nice plant ,no probs.
leaves generally pale off at this time, plant is using little N at this stage.Also dont give it extra N as this will cause your buds to be leafy and fluffy.feed with fert high in K and P at moment to get tighter harder buds.Also i wouldnt flush at this late stage, why rip all nutes from soil when plant is healthy??
 
streets

streets

Well-Known Member
Snow Crash said:
No, it is burn. Technically a nutrient toxicity. Some element has built up to an unacceptable level. The over-abundance of this element in the media creates and electrical discrepancy between the charge of the plant and the charge of the media. This can actually draw elements out of the plant to establish an electrical equilibrium, like high pressure to low pressure.

Incorporating run off helps keep build up like this from gradually accumulating. Just imagine that if every time you fed that you were using 100ppm too much. Over time that 100ppm has just added and added and become 1,000ppm too much of some solitary element and the plant just cannot take it anymore.

The more nutrients you add the worse things are going to get.

The dead give-a-way are the tips of your plant. The brown toasting of them and the way it looks like Magnesium and Potassium are in short supply is pretty typical also. Usually when an excess of Phosphates are present (negatively charged) which can pull positively charged Potassium, Magnesium, and NH4 from the plant, or at least keep it from being taken up to keep the equilibrium in the media. Then again it could be an over abundance of Calcium, competing with other elements for uptake. These issues are pretty hard to nail down but fortunately there is one solution regardless of what element is in excess.

I recommend you flush your media with about 2 gallons of water per gallon of soil. This won't flush it clean, but it will remove any build up of nutrients. Then you can continue feeding at about 80% strength from here on out. Dial back big time on anything that has more Phosphorus than Potassium. You probably won't need that stuff until about week 5 of flowering at the earliest.
Click to expand...

im going to try this tonight, ill flush it with water at 6.5? do you think i should do this with every plant before i switch them over to flowering? i have a long veg and now that u mention it, it would make alot of sense to flush before flowering. after i flush with water. should the last gallon have 80% strength ferts?
 
streets

streets

Well-Known Member
*BUDS said:
Man thats a nice plant ,no probs.
leaves generally pale off at this time, plant is using little N at this stage.Also dont give it extra N as this will cause your buds to be leafy and fluffy.feed with fert high in K and P at moment to get tighter harder buds.Also i wouldnt flush at this late stage, why rip all nutes from soil when plant is healthy??
Click to expand...
perfection my man, the plant might look healthy, but there are underlying problems, compared to some of my other plants, which have big dark greens leaves, this plant looks sickly! lol
 
Snow Crash

Snow Crash

Well-Known Member
streets said:
im going to try this tonight, ill flush it with water at 6.5? do you think i should do this with every plant before i switch them over to flowering? i have a long veg and now that u mention it, it would make alot of sense to flush before flowering. after i flush with water. should the last gallon have 80% strength ferts?
Click to expand...
That's pretty much what I'd do. With the extended Veg period it just leaves a lot of time for the salts to accumulate slowly. Many growers who feed at full strength for 3 weeks or more leading up to Flowering wind up with these same issues. Doesn't even take full strength sometimes.

Flushing before flowering will get your media back to basics. Keep the vegetative nutrients until your 3rd week of flowering. Don't add anything extra before that point. Then it's a good idea to start dropping the Calcium and increasing the Magnesium. Keep your Potassium levels just above your Nitrogen levels, and keep your Phosphorus levels low until around the 5th week of flowering.

In soil it is pretty easy to over do it. In the future keep the fresh water feedings frequent and make sure you always get some run off (remove it, don't let the plant drink it back up) to help keep any build up from returning.
 
streets

streets

Well-Known Member
Snow Crash said:
That's pretty much what I'd do. With the extended Veg period it just leaves a lot of time for the salts to accumulate slowly. Many growers who feed at full strength for 3 weeks or more leading up to Flowering wind up with these same issues. Doesn't even take full strength sometimes.

Flushing before flowering will get your media back to basics. Keep the vegetative nutrients until your 3rd week of flowering. Don't add anything extra before that point. Then it's a good idea to start dropping the Calcium and increasing the Magnesium. Keep your Potassium levels just above your Nitrogen levels, and keep your Phosphorus levels low until around the 5th week of flowering.

In soil it is pretty easy to over do it. In the future keep the fresh water feedings frequent and make sure you always get some run off (remove it, don't let the plant drink it back up) to help keep any build up from returning.
Click to expand...
thank u very much for your help, i tried to give u rep, but it wouldnt let me!
 
Snow Crash

Snow Crash

Well-Known Member
No problem homie. I have a lot of "pointless" reputation because I spend a lot of my time helping people who's +rep doesn't actually count towards anything.

Busts me up when I see people that have 4,000+ posts, all of which are in the political forum, and then they get titles like "Master Grower." The system on this site is completely asinine, but it doesn't bother me.

I do it for the warm and fuzzy feeling, not the arbitrary popularity contest.
 
streets

streets

Well-Known Member
Snow Crash said:
No problem homie. I have a lot of "pointless" reputation because I spend a lot of my time helping people who's +rep doesn't actually count towards anything.

Busts me up when I see people that have 4,000+ posts, all of which are in the political forum, and then they get titles like "Master Grower." The system on this site is completely asinine, but it doesn't bother me.

I do it for the warm and fuzzy feeling, not the arbitrary popularity contest.
Click to expand...
well it's appreciated! Anywho, how long should it be before I notice a change back to normal after I flush??
 
Snow Crash

Snow Crash

Well-Known Member
They aren't that bad. As long as you hit them with some food pretty soon after the flush you should see noticeable results in 3 days.

Honestly, flushing might just be a bit extreme. I think just hitting them with some water, getting a lot of run off, and then running plain pH'd water for the next 2 feedings. That would probably resolve the issue.

I'm going back and forth on this one, TBH. Sometimes I think flush and rebuild. Sometimes I think just water, water, water without any flushing.

It's up to you. Both methods will probably help out. Afterwards you're going to want to try and keep your Nitrogen and your Potassium levels up, of all the elements you could be short on those would be my bet, and you probably don't need any extra Phosphorus.
 
streets

streets

Well-Known Member
I used 3 gallons per pot at 6.5ph straight water. 2 right after another than the last one I waited 20 mins to pit it in. I hope this is the beginning to the end of this shit..
 
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