Kot said:

Anyone has an idea what is the NPK of molases?

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• Calcium ----- 205 mg --- 20%
• Iron -------- 4.7 mg --- 26%
• Magnesium --- 242 mg --- 61%
• Phosphorus -- 31 mg ---- 3%
• Potassium --- 1464 mg -- 42%
• Sodium ------ 37 mg ---- 2%
• Zinc -------- 0.3 mg --- 2%
• Copper ------ 0.5 mg --- 24%
• Manganese --- 1.5 mg --- 77%
• Selenium ---- 17.8 mcg - 25%

• Thiamin -------- > 0.0 mg -- 3%
• Niacin ------------- 0.9 mg -- 5%
• Vitamin B6 ------- 0.7 mg -- 34%
• Pantothenic Acid - 0.8 mg -- 8%
• Choline ---------- 13.3 mg - ~

• Sucrose 29403 mg
• Glucose 11919 mg
• Fructose 12791 mg

Glow said:

Have you run soil nutrient analysis at all? It would be interesting to see to what degree this occurs. Also it is the plant people consume, not the soil. If nutrients become more bioavailable this happens for a long period of time dependent on the nutrient status of the soil.

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Bulldog420 said:

1-0-.5

• Calcium ----- 205 mg --- 20%
• Iron -------- 4.7 mg --- 26%
• Magnesium --- 242 mg --- 61%
• Phosphorus -- 31 mg ---- 3%
• Potassium --- 1464 mg -- 42%
• Sodium ------ 37 mg ---- 2%
• Zinc -------- 0.3 mg --- 2%
• Copper ------ 0.5 mg --- 24%
• Manganese --- 1.5 mg --- 77%
• Selenium ---- 17.8 mcg - 25%

Vitamins

• Thiamin -------- > 0.0 mg -- 3%
• Niacin ------------- 0.9 mg -- 5%
• Vitamin B6 ------- 0.7 mg -- 34%
• Pantothenic Acid - 0.8 mg -- 8%
• Choline ---------- 13.3 mg - ~

Sugars (55.5 g)

• Sucrose 29403 mg
• Glucose 11919 mg
• Fructose 12791 mg

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Kot said:

Anyone has an idea what is the NPK of molases?

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Bulldog420 said:

Here is Grandma's Molasses. All products will vary for sure.

Nutrition Facts
Serving Size
tbsp
Amount Per Serving
60
Calories
% Daily Value*
0%
Total Fat 0g
0%Saturated Fat 0g
Trans Fat 0g
7%
Cholesterol 20mg
6%
Sodium 135mg
5%
Total Carbohydrate 16g
0%
Dietary Fiber 0g
Sugars 14g
Protein 0g
0%Vitamin A 0 IU
2%Vitamin C 1mg
0%Calcium 0mg
2%Iron 0.4mg
3%Potassium 110mg

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FatManatee said:

I think you made a mistake with this one. Pretty much all brands list molasses having 5% of potassium, nitrogen is 1-3%

So NPK values for molasses, depending on brand average 2-0-5

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Glow said:

I once upon a time did have a lab analysis. I'll see if I can find it on any old saved backups... But

The final cane molasses used contained, on an air dry basis, 18.5% moisture, 62.1% alcohol-soluble sugars, 32.2% sucrose, 8.6% glucose and 15% fructose. The nitrogen content was particularly low (0.58%, out of which scarcely half was present as amino acids). https://www.sciencedirect.com/science/article/pii/0377840178900184

See screenshot for K, Mg and Na


View attachment 852384

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Bulldog420 said:

Just because a food product has 3% P in their nutrient printout, doesn't mean that would equal 3 in a NPK number.

For example:

The fertilizer numbers can be used to calculate how much of a fertilizer needs to be applied to equal 1 pound of the nutrient you are trying to add to the soil. So if the numbers on the fertilizer are 10-10-10, you can divide 100 by 10 and this will tell you that you need 10 pounds of the fertilizer to add 1 pound of the nutrient to the soil. If the fertilizer numbers were 20-20-20, you divide 100 by 20 and you know that it will take 5 pounds of the fertilizer to add 1 pound of the nutrient to the soil.

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MidwestToker said:

Why do my outdoor plants in soil fade differently than my indoor plants when I flush or run a reduced nutrient profile ? My outdoors always fade from the bottom up where my indoors if I flush starts on the leaves closest to the branches supporting the flowers.
This had a month long water only feed and as you can see there is still still green leaves on the bottom while the top leaves have little to none.View attachment 852385

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Bulldog420 said:

Wow, you win for the person who tests everything. I give you my crown.......

You tested a product that has a detailed nutrient label? Why?

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FatManatee said:

Incorrect.

"Regardless of its type, any fertilizer you buy will come with information about the nutrients it contains. Prominently featured will be the N-P-K ratio, the percentage the product contains by volume of nitrogen (chemical symbol N), phosphorus (P), and potassium (K). A 16-16-16 fertilizer, for example, contains 16% nitrogen, 16% phosphorus, and 16% potassium. A 25-4-2 formulation contains 25% nitrogen, 4% phosphorus, and 2% potassium."

https://www.sunset.com/garden/garden-basics/crash-course-fertilizers

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Kot said:

Maybe they don't exactly fade but turn purple from very low temperatures. My indoor at the moment fade from below because I stopped all nitrogen on day 48. So the low leaves turn yellow.

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Bulldog420 said:

Sorry dude, that is incorrect. The 3%P on a food label is not the same for nutrients. You are confusing what NPK means, and a food label means. Totally different metrics.

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FatManatee said:

I quoted a reliable, well trusted magazine that confirms my statement. Would you like to give sources to your claim, as I can't find anything on Google that supports your statement.

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Glow said:

I think he might be confusing NPK ratio listing with percentage. The only variance between food and a fertilizer might be the food is listed in %w/w while a fertilizer might be listed in %w/v... Either way percentage is percentage - it's a universal standard regardless of product

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