Math question help please: Nutrients come in npk values. Nitrogen, phosphorus, potass

Rlksix

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Oct 8, 2018
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Hi i want to start off by saying i think i am horrible at math but i need help. I am trying to find out the total percentage of nutrients in a certian batch of nutrients.

This is how i think its done buy im not sure if im right.

Nutrients come in npk values. Nitrogen, phosphorus and potassium. 2-1-1 for example 2% nitrogen 1% phosphorus and 1% potassium

Example.

Nutrient 1 = 2-1-1
Nutrient 2 = 0-5-2
Nutrient 3 = 1-0-1

Ok so i am trying to figure out the percent of the total parts per million number.

Nutrient 1 raised the ppms up to 500
Nutrient 2 raised the ppms up to 700
Nutriend 3 raised the ppms up to 1000

So i take the total ppm of 1000 and subtract each total ppms raised of each nutrient.

Nutrient 1 raised the total by 500
Nutrient 2 raised the total by 200
And nutrient 3 raised the total by 300

So i then take the total ppm of 1000 and divide it by each of the numbers i just got

1000/500=2
1000/200=5
1000/300=3.3

Then i take 100 and divide by those numbers

100/2=50
100/5=20
100/3.3=30

Then i take the original npk value of each nutrient and x's by .50 or .20 or .30?

So nutrient 1 with the npk value of 2-1-1 would be

2 x .50 = 1
1x .50 = .5
1x .50= .5

Nutrient 2 with thw npk value of 0-5-2 would be

0 x .20 = 0
5 x .20 = 1
2x .20 = .4

Nutrient 3 with an npk value of 1-0-1 would be

1 x .30 =.3
0 x .30= 0
1x .30 = .3

So the total of my npk solution would be 1.3-1.5-1.2

Is this right? I kinda stumbled onto this equation and i juat want to know if its correct?

The reason i am doubting myself is because i started to think that if one of my nutrients also has another value instead of the original npk values, like if there was also 20% calcium in the mix as well and i get a total of 100 ppms from that nutrient woud that effect the percents im getting?

I really hope all this makes sense lol.
 
Hi i want to start off by saying i think i am horrible at math but i need help. I am trying to find out the total percentage of nutrients in a certian batch of nutrients.

This is how i think its done buy im not sure if im right.

Nutrients come in npk values. Nitrogen, phosphorus and potassium. 2-1-1 for example 2% nitrogen 1% phosphorus and 1% potassium

Example.

Nutrient 1 = 2-1-1
Nutrient 2 = 0-5-2
Nutrient 3 = 1-0-1

Ok so i am trying to figure out the percent of the total parts per million number

Nutrient 1 raised the ppms up to 500
Nutrient 2 raised the ppms up to 700
Nutriend 3 raised the ppms up to 1000

So i take the total ppm of 1000 and subtract each total ppms raised of each nutrient.

Nutrient 1 raised the total by 500
Nutrient 2 raised the total by 200
And nutrient 3 raised the total by 300

So i then take the total ppm of 1000 and divide it by each of the numbers i just got

1000/500=2
1000/200=5
1000/300=3.3

Then i take 100 and divide by those numbers

100/2=50
100/5=20
100/3.3=30

Then i take the original npk value of each nutrient and x's by .50 or .20 or .30?

So nutrient 1 with the npk value of 2-1-1 would be

2 x .50 = 1
1x .50 = .5
1x .50= .5

Nutrient 2 with thw npk value of 0-5-2 would be

0 x .20 = 0
5 x .20 = 1
2x .20 = .4

Nutrient 3 with an npk value of 1-0-1 would be

1 x .30 =.3
0 x .30= 0
1x .30 = .3

So the total of my npk solution would be 1.3-1.5-1.2

Is this right? I kinda stumbled onto this equation and i juat want to know if its correct?

The reason i am doubting myself is because i started to think that if one of my nutrients also has another value instead of the original npk values, like if there was also 20% calcium in the mix as well and i get a total of 100 ppms from that nutrient woud that effect the percents im getting?

I really hope all this makes sense lol.

"...makes sense..." -- Not really.

One guess... In this mysterious arithmetic, does 2-1-1 suggest 2+1+1 = 4 or 4% = 4 pph(undred) = 40 ppt(housand) = 40,000 ppm? Of course, that would be pretty tricky, since Nutrient raises only to 500 pm.

Let's try this with Nutrient #2 ... 0-5-2 ==> 0+5+2 = 7, so 7% = 7 pph = 70 ppt = 70,000 ppm. Finally, if we take only a small sample of #2, 500/70000 = 5/700 = 5/7 % of some normal or standard dosage.

Hard to say, really. What is wanted is just not clear.
 
"...makes sense..." -- Not really.

One guess... In this mysterious arithmetic, does 2-1-1 suggest 2+1+1 = 4 or 4% = 4 pph(undred) = 40 ppt(housand) = 40,000 ppm? Of course, that would be pretty tricky, since Nutrient raises only to 500 pm.

Let's try this with Nutrient #2 ... 0-5-2 ==> 0+5+2 = 7, so 7% = 7 pph = 70 ppt = 70,000 ppm. Finally, if we take only a small sample of #2, 500/70000 = 5/700 = 5/7 % of some normal or standard dosage.

Hard to say, really. What is wanted is just not clear.

No im sorry. The 2-1-1 is a npk value of fertalizer meaning there would be 2% nitrogen 1% phosphorus and 1% potassium. So there is multiple percentages going into one fertalizer mix. Each fertalizer i am adding to the mix has different npk % values. I am trying to find the final npk value after adding all of the fertalizers into one mix.

Im sorry for explaining things badly lol math isnt my thing.
 
No im sorry. The 2-1-1 is a npk value of fertalizer meaning there would be 2% nitrogen 1% phosphorus and 1% potassium. So there is multiple percentages going into one fertalizer mix. Each fertalizer i am adding to the mix has different npk % values. I am trying to find the final npk value after adding all of the fertalizers into one mix.

Im sorry for explaining things badly lol math isnt my thing.

Anyone??
 
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