What does NPK Stand For? These numbers represent nitrogen, phosphorus and potassium content. These numbers represent the percent by weight of nitrogen (N), phosphorus (P) and potassium (K) in every container and are always listed in the same order. Also implied in the N-P-K label is a percentage sign behind each of these numbers. A Homeowner's Guide to Fertilizer: Understanding the Fertilizer Label : All fertilizer labels have three bold numbers. If you've shopped for lawn fertilizer before, you might have noticed some numbers on the label that look something like this: 32-0-4. What the Fertilizer Numbers Mean. For example, a fertilizer such as Miracle-Gro … If you have ever wondered what the three numbers on a fertilizer bag mean, you’re not alone. These three numbers … The third number is soluble Postash (K₂O), which helps grass withstand stress, drought or disease. They refer to the NPK ratio, by weight, of the fertilizer in the bag. This is the percentage by weight of the N, P, and K found in the fertilizer. The numbers found on our All-Purpose Fertilizer, for example, are 5-5-5. This is the percentage by weight of the N, P, and K found in the fertilizer. The 30-10-10 is too high on the nitrogen side and will promote foliage growth at the expense of flowers. These three nutrients are the main nutrients that compose fertilizers. Nitrogen, … Some fertilizers have more than three numbers, and in those cases the extra numbers represent other nutrients. This is due to the fact that … These three numbers represent nitrogen, phosphorous, and potassium respectively (N-P-K). As to the numbers you listed for the fertilizer options, I would go with a lower first number-more like a 10-10-10. … Organic fertilizer numbers vs synthetic fertilizer numbers For natural-based organic fertilizers , the numbers in the N-P-K ratio are often smaller (2-3-2 or 1-1-6, for example). Each number represents a percentage of the total weight of the fertilizer. Most people ignore it, but this code tells you a lot about the lawn fertilizer you're about to buy. The numbers on the front of your lawn fertilizer bag are a “fertilizer grade”, sometimes called an “N-P-K ratio”, which describes how much Nitrogen, Phosphorus, and Potassium it contains. Most bags do not tell you what the numbers stand for in terms of … The numbers represent the percentage, by weight, of Nitrogen (N1 - always the first number), Phosphorus (P2O5 - always the second number) and Potassium (K2O - always the third number… For example, a 24-2-8 fertilizer has 24% nitrogen, 2% available phosphate and 8% soluble potash. These are three of … Find the three numbers on the fertilizer package. The first number is the amount of nitrogen (N), the second number is the amount of phosphate (P 2 O 5) and the third number is the amount of potash (K 2 O). 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