Not sure if this is N def. or something else...

[GDK]

Hiya peeps.
My problem is this. I have 6 outdoor girls planted in the same container. Soil is 200 litres of gardening soil mixed with 35% leca(expanded clay). Im in week 2-3 of flowering. Nutes are organic veg, cant remember the NPK right now. Will start feeding bloom nutes next in a week. 2 of the 6 girls are kinda pale, one more than the other. Leaves are turning yellow from the bottom up and its turning worse. Other plant is just pale but also gettin worse. The other ones are also a little lighter in color than usual. I think this is just a N def. but id like to hear your opinion before i do anything. Is it normal that it shows stronger needs of N this early in flower?

Tell me what u think:









Stay Safe

 

[dagnabit]

try schultz iron green.

http://www.gardenandlawns.com/product_info.php?products_id=3917

it'll green 'em up

 

[GDK]

So this i a N def. for sure? I was wondering if a diluted mix of urine could do the trick..from what ive read, urine contains high amounts of readily available N..
I addition to my first post i better add, that it has been raining alot these last cpl of weeks so im not sure if this could be overwatering as well..but the problem seems to attack only a cpl of plants.
Please help me fast as i dont want to stunt my flowering cycle since time is already against me..

Stay Safe

 

[Tunefull]

Hi m8
Firstly lovely little setup u have there*smiles*


It does look like a simple lack of N,but it is somit that happpens in flower(our flower feeds tend to be more PK(not so much N)
Normally tho it happens in the last few weeks of flower,So yours have deff started to leech there colour early(why i am not sure)

YOu say only some plants are effected,are these then the bigger ones that are effected?
If so maybe you have been feeding them all from the same can,there for all the plants have had the same dose,but maybe that was not enough for your bigger ones...just a thought

Also somit for next time,normally folk tend to carry on useing Veggin ferts for about 1-2 weeks into flowerr,I guess to make up for the lack of N later in the grow...


I Would not worry to much at mo,and deff dont go mixing loads of ferts in,your plants are in no danger,there safe and relitivley healthy...Whatever your cure will be,you have a few weeks(imo)To sort it out(Tbh i would not even bother(but i abuse my plants anyway))*grins*

The others be in soon with more advice on what Feed to use next i am sure,and all i hae said above could well be wrong,So as say dont act till u have more info*smileS*

 

[sproutco]

I was wondering if a diluted mix of urine could do the trick..from what ive read, urine contains high amounts of readily available N..

Please don't do that to your pretty plants.

 

[GDK]

Please don't do that to your pretty plants.

Why not?..and thanks for stopping by guys..appreciate it!

 

[mace_ecam]

Is it normal that it shows stronger needs of N this early in flower?

yes, thats absolutely normal ime

changing too early from veg nutes(more N) to flower nutes(low N) is very likely to cause an N def during the stretch.

Plants will need a lots of nutes during the stretch, especially N

mace

 

[PazVerdeRadical]

GDK, using your own urine will work, no matter what the gringos say
you have to dillute it in fresh water, the ratio is 1 part urine mixed in 10 parts water.
i also suggested in your thread to use liquid humus.
peace.

 

[GDK]

Thanks guys..
Paz, ill try the urine method..100% organic eh..? And ill try to locate some liquid humus too..
Im interested in why sproutco says that i shouldnt do it..does it have some kind of side effects?

Thanks again guys....

Stay Safe

 

[sproutco]

Im interested in why sproutco says that i shouldnt do it..does it have some kind of side effects?

It is urea nitrogen. This is basically ammonia nitrogen plus carbon. Ammonia is toxic to plants in large amounts unless it is converted at least to some degree to nitrate nitrogen. Better thing to add is nitrate nitrogen. Calcium nitrate and potassium nitrate are two good sources. These will rarely harm plants. I would guess and say to use 1 teaspoon (5ml) calcium nitrate or potassium nitrate in 1 gallon of water (3.8 liters). This would be about 200 ppm nitrogen. Do this maybe once or twice. As an alternative that is not as good, use another fert. high in nitrogen.

I told my mother that I was talking to someone in Denmark that wanted to pee on their plants and she said "don't talk to kooks (someone that is crazy)". :smile:

Good luck with your plants. They actually look nice.

 

[PazVerdeRadical]

GDK, the only possible side-effects with the urine method is that the urine may not be healthy and may have some kind of infection that may be damaging to the plants, but there is no evidence regarding this... salt built up is also possible, but a lot less likely than with petro-ferts or even organic ferts. there can be serious fert burn though, specially if one were to pee directly into the soil of a potted plant or if the urine was not dilluted in enough water. some people start feeding half strength 1:20, then go to 1:15 and then finally to 1:10. etc... you get the idea


one love.

 

[PazVerdeRadical]

It is urea nitrogen. This is basically ammonia nitrogen plus carbon. Ammonia is toxic to plants in large amounts unless it is converted at least to some degree to nitrate nitrogen. Better thing to add is nitrate nitrogen. Calcium nitrate and potassium nitrate are two good sources. These will rarely harm plants. I would guess and say to use 1 teaspoon (5ml) calcium nitrate or potassium nitrate in 1 gallon of water (3.8 liters). This would be about 200 ppm nitrogen. Do this maybe once or twice. As an alternative that is not as good, use another fert. high in nitrogen.

I told my mother that I was talking to someone in Denmark that wanted to pee on their plants and she said "don't talk to kooks (someone that is crazy)". :smile:

Good luck with your plants. They actually look nice.

how is urea nitrogen basically ammonia nitrogen? what is ammonia nitrogen? you have the formulas? don't make kook claims (claims of a crazy person)

the evidence of using human urine goes back to at least 500 years where i am located at... there's tons of research on the matter, just google it. ammonia nitrogen sheesh...

 

[GDK]

Thanks for your help guys..i did google it paz, and youre right. Human urine is being stored for agricultural use and is used with succes around the world. Ill just use a light mix a cpl of time and see what happens...i guess i can easily mix the diluted urine with my normal nutes when i water?
That is if you are sure that its nothing more than a N def.

Thanks guys

Stay Safe

 

[sproutco]

how is urea nitrogen basically ammonia nitrogen? what is ammonia nitrogen? you have the formulas?

urea is (NH2)2CO, ammoniacal nitrogen is NH3-, and nitrate nitrogen is NO3-. Urea is converted to ammoniacal nitrogen in the soil rapidly CO(NH2)2 + H2O => => 2NH3 + CO2

 

[PazVerdeRadical]

urea is (NH2)2CO, ammoniacal nitrogen is NH3-, and nitrate nitrogen is NO3-. Urea is converted to ammoniacal nitrogen in the soil rapidly CO(NH2)2 + H2O => => 2NH3 + CO2

you are not talking to a high school kid here mate. so magically urea is transformed into ammoniac when urea hits the earth's soil, uh?

 

[mace_ecam]

PazVerdeRadical, are you saying that plant don't need store bought bottled nutes or chemical nutes to grow? j/k

Hey guys, long before stoners were spreading myths about plants, the plants were growing, using poo and piss from animals as nutes, we have an age old symbiosys with them.
Human piss is cetainly a good source imo if N is all that needed, just don't forget to dilute it.

 

[Blackmelo]

those plants are looking great.

yeah they might be showing a Nitrogen deficiency a couple of weeks too soon but that is nothing serious to worry about imo.

The less nitrogen the plants get in flowering, the more they generally tend to yield, that is one reason i would suggest not feeding nitrogen.

However, if it is already running out of nitrogen now at the beginning of flowering, it is most likely going to run out of nitrogen completely before the grow ends which is going to be detrimental.

So no large quantities of N at this stage, you just want to feed very little every week from now to delay the yellowing.

I try to reduce the amount of Nitrogen I feed in flowering to half the amount i was feeding in vegg. So try to work out how much nitrogen you were feeding in vegg and work out how much you should be feeding now in flowering...

this site might help you with the ppm levels of your nutes:

http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm

 

[GDK]

Thanks guys..i didnt expect that many replies.
Im not really that scientific so i wouldnt know what sproutcos formula means , but i think it sounds like its safe to use a small amount of urine to aid the immediate deficiancy. Since im going to switch to flower nutes in a matter of days, its not like im going to feed them urine many times.
But Paz and sprout: I think its great that u guys can discuss this and help making this thread useful for others in the future perhaps..
I thank u all for your advice and your time..cant spred rep to all of you yet, but im truly grateful.

Stay Safe

 

[PazVerdeRadical]

you know Sprout is a good guy sincerly trying to help, but sometimes "knowledge" gets in the way of helping... the formula he presents is inorganic chemistry, which does not take into account the soil's effect upon the correct ammount of dilluted urine. to be able toe express the whole thing properly it has to be done through organic chemistry plus taking into account all the variables the soil presents, which affects the reactions of each element according to how much of each element is present, and this is not easy to do so either...

peace man! let us know when the plants get a nicer green colour going on.