Low N, high P and K

MammothGrow

MammothGrow

Well-Known Member
My soil tests show their isn't much available N in the soil, but really high levels of P and K. Growing organic in roots 707 soil giving compost tea once a week. My question is, if their isn't enough N to be used by the plant, does it make the plant use less P and K which would be why the levels are so high? My leaves have been purpling an looking like P deficiency which is actually from too much P. A lot of times too much of something mimics the looks of a deficiency, which is what I think is going on here. I flushed them last watering, about to give them compost tea, and add a little N to it make up for the shortage, do you think this will fix my problem?
 

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MammothGrow

MammothGrow

Well-Known Member
MammothGrow said:
My soil tests show their isn't much available N in the soil, but really high levels of P and K. Growing organic in roots 707 soil giving compost tea once a week. My question is, if their isn't enough N to be used by the plant, does it make the plant use less P and K which would be why the levels are so high? My leaves have been purpling an looking like P deficiency which is actually from too much P. A lot of times too much of something mimics the looks of a deficiency, which is what I think is going on here. I flushed them last watering, about to give them compost tea, and add a little N to it make up for the shortage, do you think this will fix my problem?
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ok so checked my compost tea when it was done and it had plenty of N in it, then I added to my 50 gallon reservoir and checked it and bam, plenty of N. So I didn't add any extra N to it. I checked my runoff when watering and boo yah, plenty of N. So that should take of the lack of N for now. Im beginning to think maybe my microbe population wasn't sufficient enough to keep up with the needs of the plants. So I flushed last watering, and just gave them some banger tea this time, 2x the amount I normally do. Hopefully the ladies will look much better in a few days.
 
Kush Knight

Kush Knight

Well-Known Member
Buy some worms. Start a $40 worm farm. For the nitrogen, Grind up the worms. You get ~10-2-2 or ~8-2-2 depending on worm and feed. And its an organic renewable process. Win.

BTW, flushing P & K 10x harder than it seems.
 
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Kush Knight

Kush Knight

Well-Known Member
churchhaze said:
Lawn food (miracle grow, shultz, peters, jacks) would work great. It's the urea from those products you want.
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No its not the urea :dunce::wall:
Urea Nitrogen takes a while to breakdown into useable form. So it loads out the soil, and often leads to overfeeding
as the effects of the fert wont be immediate.
Its the ammoniacal nitrogen thats normally the water soluble form of nitrogen.
But any highly water soluble, foliar feed approved fert will do nicely.
Organic fert would be so much better for the bennies.

But again OP,

worms. Grind up. Tea. Strain. Foliar feed/fertilize with stained juices, or apply grindings directly to top 2" of soil. Be careful to avoid rot.
 
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C

churchhaze

Well-Known Member
Urea breaks down into ammonical nitrogen.

I'm your professor, kid. You'll be wearing the dunce cap when I give you a failing grade and make you take the course over again.

But yeah... I clearly know nothing about plant nutrition. Good luck with all the yellow leaves!

Kush Knight said:
No its not the urea :dunce::wall:
Urea Nitrogen takes a while to breakdown into useable form. So it loads out the soil, and often leads to overfeeding
as the effects of the fert wont be immediate.
Its the ammoniacal nitrogen thats normally the water soluble form of nitrogen.
But any highly water soluble, foliar feed approved fert will do nicely.
Organic fert would be so much better for the bennies.

But again OP,

worms. Grind up. Tea. Strain. Foliar feed/fertilize with stained juices, or apply grindings directly to top 2" of soil. Be careful to avoid rot.
Click to expand...
 
Kush Knight

Kush Knight

Well-Known Member
churchhaze said:
Urea breaks down into ammonical nitrogen.

I'm your professor, kid. You'll be wearing the dunce cap when I give you a failing grade and make you take the course over again.

But yeah... I clearly know nothing about plant nutrition. Good luck with all the yellow leaves!
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VERY POINT BEING, and I quote,
Kush Knight said:
No its not the urea :dunce::wall:
Urea Nitrogen takes a while to breakdown into useable form.....
Its the ammoniacal nitrogen thats normally the water soluble form of nitrogen.
Click to expand...


You make me laugh. Most highly soluble water cheap chem ferts that I know, still have 1/4-1/2 the makeup of N in urea form anyways.. but the rest is already available :dunce:
 
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Kush Knight

Kush Knight

Well-Known Member
churchhaze said:
Urea breaks down into ammonical nitrogen.

I'm your professor, kid. You'll be wearing the dunce cap when I give you a failing grade and make you take the course over again.

But yeah... I clearly know nothing about plant nutrition. Good luck with all the yellow leaves!
Click to expand...
btw originally i was gonna link you to KK approved educational shit about urea, but i figured you wouldn't care enough to listen cause everyones an expert nowadays.
These forums are getting ridiculous.
 
Kush Knight

Kush Knight

Well-Known Member
churchhaze said:
Not everyone is an expert ;)
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IMHTGO and in the strictest speaking, only the people who can win multiple cannabis cups as sole breeders and growers are experts in marijuana. And people with proper degrees and government/private labs. Just a degree normally means you can grow and grow well, not that you are an expert. You need to couple that with 25 years of high quality budgetless limitless experience to be an expert. I AM NO EXPERT. Never claim to be. Everyone else seems to think their 4-10 years experience is enough to be an expert. Thats hardly a pro. I'm no pro, but I do have experience enough to help people, and I read and comprehend a lot of material, enough to be rather link happy. Thats all. Now you know how hard it is to rank on my scale, I myself am say ~3.75/10 hypothetical experience. A pro would be 7.5, and an expert is 9 or higher. And you need 2.5 pts to help people better than 75% other answers. Judge yourself lol. most people "helping" on here score between 0.1-6.5, with maybe 10 pro-expert members, rarely seen.

btw whole nother scale for extract artists. different area of science involving some different chemistry and physics.
 
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ayr0n

ayr0n

Well-Known Member
churchhaze said:
Urea breaks down into ammonical nitrogen.

I'm your professor, kid. You'll be wearing the dunce cap when I give you a failing grade and make you take the course over again.

But yeah... I clearly know nothing about plant nutrition. Good luck with all the yellow leaves!
Click to expand...
Kush Knight said:
VERY POINT BEING, and I quote,




You make me laugh. Most highly soluble water cheap chem ferts that I know, still have 1/4-1/2 the makeup of N in urea form anyways.. but the rest is already available :dunce:
Click to expand...
How about I just wear the dunce cap :dunce:
 
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