gardengardian7
Well-Known Member
Per say, i have (sea bird guano 3-7-6, (bat guano 3-7-7), would it come out to 6-14-13? My apologies if this is an irritable question.
Does nutrient ratios add per nutrient?
- Thread starter gardengardian7
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Those are percentages of the product's weight. If you have 100g of bird guano, 3% of it (3g) is N. Whether you feed 1 or 2 tsps doesn't affect the percentage of N in 1 or 2 tsps, it's still 3%.
If you use both bird and bat guano, the combination is still 3%. The quantity fed is still up to you. If you normally feed 1 tsp of bird guano (which contains 3% by weight of N) and you add 1 tsp bat guano, you've doubled the quantity of N you're giving the plant. But, it's still 3% of the 2 tsp of guano you're feeding. (If you feed 1/2 tsp and 1/2 tsp, you'd feed the same quantity of N as you always did, and it would still be 3% of the total weight in that combined tsp).
I think of NPK as a ratio, or parts as they relate to each other. The percentage is only useful if you want to know precisely how much N you're feeding (weigh a tsp of the stuff, and multiply by .03 (3%) to get an amount in the milligram range).
For example: an "all purpose" 16-16-16 (percentages of weight) is a ratio of 1:1:1 ("one part to one part to one part."). A bud formula at 4:26:26 (percentages of weight) is 1- 6.5-6.5 (proportionally). If I mix 1/2 tsp and 1/2 tsp, I get an average between the two: 10-21-21 (percentages of weight) or 1-2.10-2.10 (proportions)
So, in you your case, percentages and ratios wouldn't change much between 6-7% of K. You'd end up at 3-7-6.5 (percentages of weight) or 1-2.3-2.16 (proportions).
If you use both bird and bat guano, the combination is still 3%. The quantity fed is still up to you. If you normally feed 1 tsp of bird guano (which contains 3% by weight of N) and you add 1 tsp bat guano, you've doubled the quantity of N you're giving the plant. But, it's still 3% of the 2 tsp of guano you're feeding. (If you feed 1/2 tsp and 1/2 tsp, you'd feed the same quantity of N as you always did, and it would still be 3% of the total weight in that combined tsp).
I think of NPK as a ratio, or parts as they relate to each other. The percentage is only useful if you want to know precisely how much N you're feeding (weigh a tsp of the stuff, and multiply by .03 (3%) to get an amount in the milligram range).
For example: an "all purpose" 16-16-16 (percentages of weight) is a ratio of 1:1:1 ("one part to one part to one part."). A bud formula at 4:26:26 (percentages of weight) is 1- 6.5-6.5 (proportionally). If I mix 1/2 tsp and 1/2 tsp, I get an average between the two: 10-21-21 (percentages of weight) or 1-2.10-2.10 (proportions)
So, in you your case, percentages and ratios wouldn't change much between 6-7% of K. You'd end up at 3-7-6.5 (percentages of weight) or 1-2.3-2.16 (proportions).
There are no irritable questions, only irritable answers.My apologies if this is an irritable question.
gardengardian7
Well-Known Member
Thanks for your knowledgeable answer. I learned something new. Now i must go study. Thanks alot.Those are percentages of the product's weight. If you have 100g of bird guano, 3% of it (3g) is N. Whether you feed 1 or 2 tsps doesn't affect the percentage of N in 1 or 2 tsps, it's still 3%.
If you use both bird and bat guano, the combination is still 3%. The quantity fed is still up to you. If you normally feed 1 tsp of bird guano (which contains 3% by weight of N) and you add 1 tsp bat guano, you've doubled the quantity of N you're giving the plant. But, it's still 3% of the 2 tsp of guano you're feeding. (If you feed 1/2 tsp and 1/2 tsp, you'd feed the same quantity of N as you always did, and it would still be 3% of the total weight in that combined tsp).
I think of NPK as a ratio, or parts as they relate to each other. The percentage is only useful if you want to know precisely how much N you're feeding (weigh a tsp of the stuff, and multiply by .03 (3%) to get an amount in the milligram range).
For example: an "all purpose" 16-16-16 (percentages of weight) is a ratio of 1:1:1 ("one part to one part to one part."). A bud formula at 4:26:26 (percentages of weight) is 1- 6.5-6.5 (proportionally). If I mix 1/2 tsp and 1/2 tsp, I get an average between the two: 10-21-21 (percentages of weight) or 1-2.10-2.10 (proportions)
So, in you your case, percentages and ratios wouldn't change much between 6-7% of K. You'd end up at 3-7-6.5 (percentages of weight) or 1-2.3-2.16 (proportions).
There are no irritable questions, only irritable answers.