What Do The Numbers On A Fertilizer Bag Mean

What does npk stand for.

The three numbers on a bag of fertilizer separated by dashes represent what is called an n p k ratio. On the label you ll see numbers like 5 10 10 10 10 10 and 10 6 4. The three numbers you see on the label of every bagged or bottled fertilizer represent the product s n p k ratio. The first number is nitrogen n.

For a fertilizer with 12 5 16 on its label that means it contains 12 nitrogen 5 phosphorus and 16 potassium. If you have ever wondered what the three numbers on a fertilizer bag mean you re not alone. These nutrients are the three numbers on a fertilizer bag listed in order n p k. On the front of fertilizer bags you ll find three bold numbers called n p k numbers.

The first number represents the percentage of nitrogen the second represents the percentage of phosphorus and the third represents the percentage of potassium. These three are also known as macronutrients and are the source of the three numbers commonly found on organic fertilizer labels. What do the numbers on fertilizer mean. What do the numbers on a bag of fertilizer mean.

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This is the percentage by weight of the n p and k found in the fertilizer. Nitrogen n phosphorous p and potassium k. They refer to the npk ratio by weight of the fertilizer in the bag. The numbers found on our all purpose fertilizer for example are 5 5 5.

The npk ratio is the amount of nitrogen n phosphorus p and potassium k. Each number represents the percentage by weight of the corresponding nutrient contained in the fertilizer. Every fertilizer label will give information relating to its n p k content expressed as a number ratio. These represent the three primary nutrients in fertilizer.

Nitrogen promotes top growth in lawns. There are 3 separate numbers on a bag of fertilizer each of these numbers represents a percentage of the three major nutrients that provides healthy plant growth. Using a fertilizer with a lot of nitrogen in it will make your grass grow more rapidly. A bag of fertilizer labelled 15 10 5 would contain 15 nitrogen n by weight 10 phosphorus p by weight and 5 potassium k by weight.

So what do fertilizer numbers mean. So a fertilizer that contains 5 10 10 means it has 5 percent nitrogen 10 percent phosphorus phosphate and 10 percent potassium potash. So what s so important about nitrogen phosphorus and potassium. These exist to help you quickly compare products.

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The three numbers on fertilizer represents the value of the three macro nutrients used by plants. The n in the ratio stands for nitrogen the p stands for phosphorous and the k stands for potassium.