Are fertilizer numbers percentages?

The fertilizer numbers found on the package represent the percentage (by weight) of these three macro-nutrients as they are found in that package. Though plants use many different nutrients to fuel their growth, these three are used in the largest amounts.

What does percentage mean in fertilizer?

What do the numbers and letters mean? These nutrients are the three numbers on a fertilizer bag listed in order (N-P-K). So, a fertilizer that contains 5-10-10 means it has 5 percent nitrogen, 10 percent phosphorus (phosphate), and 10 percent potassium (potash).

How do you read fertilizer percentages?

The first number is the amount of nitrogen (N), the second number is the amount of phosphate (P2O5) and the third number is the amount of potash (K2O). These three numbers represent the primary nutrients (nitrogen(N) – phosphorus(P) – potassium(K)). This label, known as the fertilizer grade, is a national standard.

Which fertilizer would green up a lawn the fastest?

The number one way to increase the green color in your lawn is with Nitrogen. Nitrogen is one of the big three macronutrients needed in the greatest quantities for healthy turf. It promotes top growth in the lawn by pushing the production of chlorophyll in the plant.

What are the 3 nutrients that are most important to a fertilizer?

Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients: nitrogen, phosphorus, and potassium. Some fertilizers also contain certain “micronutrients,” such as zinc and other metals, that are necessary for plant growth.

When should I apply 10 10 10 fertilizer to my lawn?

Fertilize warm-season grass twice in the spring and twice in the fall. Apply the first spring application when new growth begins and the second application 30 days later. Apply the first fall application after the grass’s fast summer growth slows and the second application 30 days later.

Can you put too much nitrogen on your lawn?

Too much nitrogen, however, can be detrimental to the turf grass. The grass may grow too lush, and so have increased disease problems. Too much nitrogen can reduce the lawn grass tolerance to high and low temperature stress. Excess nitrogen can increase the risk of ground water pollution.