1 of 4 showing signs

[Newgrow31]

1 of 4 is getting yellow leaves
Only the big fans are changing
Can any 1 help
600w hps
Bio bizz all mix
Feeding bio bizz bloom
Only problem iv had is I for got to water them the last watering so went a day thirsty but all perked back up a couple days after then a day later the big leaves are getting a lot lighter

 

[Red Eyed]

How far into flower are they? Usually some of those big fan leaves die off late in flower but could also be a deficiency.

 

[Newgrow31]

Day 30 I'm thinking iv stressed the hell out of it with it getting over dry

 

[Nutty sKunK]

Day 30 I'm thinking iv stressed the hell out of it with it getting over dry

Exactly - pH drops when the media dries out. Consider it a warning!

 

[jimihendrix1]

Bio Biz Bloom is 2-7-4

If this is all that being fed the correct ratio is way off.
Also what Im saying isnt my opinion. The info comes from a manufacturer thas been making fertilizer, and greenhouses, and supplies since mid-late 60s, and has made Plant Specific Fertilizers since the 1970s.
They use Tissue Sampling as their method of testing.

The are Hydro-Gardens... They also specialize in Organic, and predatory beneficial insects.

They say the best base formula is
4-20-39
15.5-0-0
Epsom Salts.

The ratio ends up being 19.5-20-39. Most weed supplements are grossly deficient in Potassium. Weed basically likes 2x more K vs N- or P.
The main thing is the PPM.

Weed likes a 1-1-2 ratio, and a good feeding of Magnesium/Sulfur each feeding. Some strains will require more Iron, but is not typical.

The Bio Bloom is also likely deficient of enough Mg, and Calcium.

Its a total myth to do away with, or cut back on Nitrogen during flowering.

From Seedling- the last 2 weeks of say an 8 weeks flowering strain, the plant needs ever increasing amounts of ALL NUTRIENTS, and in weeks 2.5-4, can benefit with a boost of Mono-Potassium Phosphate 0-52-34, and in weeks 5-6 give a boost of Magnesium Sulfate/Epsom Salts. Last 2 weeks cut the food back 40%-60% last 2 weeks.

All Nitrogen to a plant is??? PROTEIN. Humans eat protein, and our bodies turn it into Nitrogen. Plants have to have the Protein already broken down to be absorbed, and they do this in the form of Nitrogen.
Protein is Latin, for Of first Importance. All metabolic process rely on Protein. Also all Growth, and repair.

Also when you let the plant get really dry, you risk burning the plant next time its watered. Its 2x as bad when you also feed it again, after it has been really dry.

When the plant gets really dry, this concentrates the dissolved solids, and when they are Rehydrated, they are concentrated, and will potentially burn the plant. I use a cheap moisture/ph/light meter, and Never let the needle get to LOW. Always Low Moist, but never ever let it get to the Dry line.

If one is growing organically, the most important thing is to have a good healthy non compacting soil, thats very fertile with everything the plant needs. Living soil is a good example, but is another subject that is long.

 

[Newgrow31]

Bio Biz Bloom is 2-7-4

If this is all that being fed the correct ratio is way off.
Also what Im saying isnt my opinion. The info comes from a manufacturer thas been making fertilizer, and greenhouses, and supplies since mid-late 60s, and has made Plant Specific Fertilizers since the 1970s.
They use Tissue Sampling as their method of testing.

The are Hydro-Gardens... They also specialize in Organic, and predatory beneficial insects.

They say the best base formula is
4-20-39
15.5-0-0
Epsom Salts.

The ratio ends up being 19.5-20-39. Most weed supplements are grossly deficient in Potassium. Weed basically likes 2x more K vs N- or P.
The main thing is the PPM.

Weed likes a 1-1-2 ratio, and a good feeding of Magnesium/Sulfur each feeding. Some strains will require more Iron, but is not typical.

The Bio Bloom is also likely deficient of enough Mg, and Calcium.

Its a total myth to do away with, or cut back on Nitrogen during flowering.

From Seedling- the last 2 weeks of say an 8 weeks flowering strain, the plant needs ever increasing amounts of ALL NUTRIENTS, and in weeks 2.5-4, can benefit with a boost of Mono-Potassium Phosphate 0-52-34, and in weeks 5-6 give a boost of Magnesium Sulfate/Epsom Salts. Last 2 weeks cut the food back 40%-60% last 2 weeks.

All Nitrogen to a plant is??? PROTEIN. Humans eat protein, and our bodies turn it into Nitrogen. Plants have to have the Protein already broken down to be absorbed, and they do this in the form of Nitrogen.
Protein is Latin, for Of first Importance. All metabolic process rely on Protein. Also all Growth, and repair.

Also when you let the plant get really dry, you risk burning the plant next time its watered. Its 2x as bad when you also feed it again, after it has been really dry.

When the plant gets really dry, this concentrates the dissolved solids, and when they are Rehydrated, they are concentrated, and will potentially burn the plant. I use a cheap moisture/ph/light meter, and Never let the needle get to LOW. Always Low Moist, but never ever let it get to the Dry line.

If one is growing organically, the most important thing is to have a good healthy non compacting soil, thats very fertile with everything the plant needs. Living soil is a good example, but is another subject that is long.

Thanks for the reply man very informative but way over my head it's my first full photo grow only other iv dun was an auto that hermied and a photo that iv just chopped

What would you recommend
Up to now iv had no signs of any problems so I'll just keep doing what Im doing for now don't wanna mess up at ti's stage it should only have 4 weeks left. I am however going to add potassium as this is the main flowering nute isn't it??

 

[Newgrow31]

Exactly - pH drops when the media dries out. Consider it a warning!

Yeah man for sure cheers

 

[jimihendrix1]

I myself would make my own Tea. Id get Peruvian Seabird Guano veg formula ( 12-11-2 ) North Atlantic Kelp Meal, Langbeinite at a rate of 1/8th tsp per 2 gallons Tea being brewed. Oyster Meal.

 

[insomnia65]

I myself would make my own Tea. Id get Peruvian Seabird Guano veg formula ( 12-11-2 ) North Atlantic Kelp Meal, Langbeinite at a rate of 1/8th tsp per 2 gallons Tea being brewed. Oyster Meal.

You would add all these together including oyster meal to the tea?

 

[jimihendrix1]

Yep, in a big bucket, an air pump, and air stone. I let it mix for 2-3 days. Small amouts of each

You have to figure out the ratios of each ingredient, and amount of water. It doest take much... Dont use water with chlorine. If using tap water have it sit in the sun for 3 days.
Id also use a small amount of Molasses.
Also be good to use an air pump, and air stone/s and bubble the mix for 3 days.

Add Michorizza right before you water the plants. Very last thing to go in before watering.

The 12-11 part of the 12-11-2 is a good start for the correct ratio of 1-1-2. With addition of Langbienite, and Kelp one can greatly increase the amount of Potassium, where the 12-12--2 is Deficient. So trying to make up for the 2 ( Potassium ) in the ratio. Would be good if one could get the Potassium up to 22. 12-11-22 ratio, and then water with diluted amounts to start and see the reaction. One can always add more next time, but is hard to take back an overdose.

In the short run its more expensive to buy all these different nutrients vs bottled, but in the long run the home made will save money, you know whats in it, you control whats in it, and it can be at least as good, or better than most anything one can buy.... If one can figure out the proper ratios ect, mixing ones own is better than any bottled IMHO as Ive never seen any bottled type of organic fertilizer with the right NPK ratios.

Living Soil is also a great way, and in the long run probably easiest to maintain if you just keep up to date with what has to be done to keep it right.

 

[johnsmith1010]

Bio Biz Bloom is 2-7-4

If this is all that being fed the correct ratio is way off.
Also what Im saying isnt my opinion. The info comes from a manufacturer thas been making fertilizer, and greenhouses, and supplies since mid-late 60s, and has made Plant Specific Fertilizers since the 1970s.
They use Tissue Sampling as their method of testing.

The are Hydro-Gardens... They also specialize in Organic, and predatory beneficial insects.

They say the best base formula is
4-20-39
15.5-0-0
Epsom Salts.

The ratio ends up being 19.5-20-39. Most weed supplements are grossly deficient in Potassium. Weed basically likes 2x more K vs N- or P.
The main thing is the PPM.

Weed likes a 1-1-2 ratio, and a good feeding of Magnesium/Sulfur each feeding. Some strains will require more Iron, but is not typical.

The Bio Bloom is also likely deficient of enough Mg, and Calcium.

Its a total myth to do away with, or cut back on Nitrogen during flowering.

From Seedling- the last 2 weeks of say an 8 weeks flowering strain, the plant needs ever increasing amounts of ALL NUTRIENTS, and in weeks 2.5-4, can benefit with a boost of Mono-Potassium Phosphate 0-52-34, and in weeks 5-6 give a boost of Magnesium Sulfate/Epsom Salts. Last 2 weeks cut the food back 40%-60% last 2 weeks.

All Nitrogen to a plant is??? PROTEIN. Humans eat protein, and our bodies turn it into Nitrogen. Plants have to have the Protein already broken down to be absorbed, and they do this in the form of Nitrogen.
Protein is Latin, for Of first Importance. All metabolic process rely on Protein. Also all Growth, and repair.

Also when you let the plant get really dry, you risk burning the plant next time its watered. Its 2x as bad when you also feed it again, after it has been really dry.

When the plant gets really dry, this concentrates the dissolved solids, and when they are Rehydrated, they are concentrated, and will potentially burn the plant. I use a cheap moisture/ph/light meter, and Never let the needle get to LOW. Always Low Moist, but never ever let it get to the Dry line.

If one is growing organically, the most important thing is to have a good healthy non compacting soil, thats very fertile with everything the plant needs. Living soil is a good example, but is another subject that is long.

excellent answer.
the only thing I would add Is to check runoff ec If you can.
I am not sure your nutrient solution
as there is a lot of talk but regardless you need all 12 minimum required nutrients N P K Ca Mg S Fe Mn B Z Cu Mo .
the medium EC should not be more than 50 % higher than the feed .
if the feed is 800 then the max the runoff should be is 1200 .if it is double or 1600 or higher then it definitely is salt lockup.
run some solution through and check .even if it is organic based you will still get reading out the bottom to see what is going on . to eliminate the possibility if nothing else . It is a good idea 4o over water by 15% each watering to keep medium EC down. good luck