Skip to Content

How Much 19-19-19 Fertilizer Per Acre? (2023)

This site is supported by our readers. We may earn a commission, at no cost to you, if you purchase through links.

When it pertains to feeding your yard, it can be a little bit of scientific research since some standard mathematics and also chemistry are entailed. Monitoring the soil nutrient profile, pH degree, and dampness content is component of a yearly fertilizing timetable that will produce a healthier lawn.

The dimension of the lawn is likewise factored right into the formula of what kind and also exactly how much fertilizer is needed. Typically, the fertilizer ‘s item details will certainly include the application price and how much location the bag must cover.

Fertilizer Ratios

There are lots of sort of fertilizers with numerous NPK ratios, referring to the amounts of nitrogen (N), phosphorus (P), as well as potassium (K) in the combination. The 19-19-19 formula is a preferred all-purpose fertilizer that can be made use of for yards as well as for trees, flower as well as vegetable yards, grass areas, as well as food plants.

The numbers in the NPK settings refer to the percent of the mixture that is the particular nutrient. 19-19-19 means 19% nitrogen, 19% phosphorus, and also 19% potassium. Plant foods additionally consist of lots of various other nutrients and raw materials that contribute to the soil’s account.

Just How Do Plants Use 19-19-19 Fertilizer?

Various plants utilize fertilizer with various efficiency, which is why ratios can vary by plant type and use. Plants will certainly absorb the 19-19-19 proportion at different prices:

  • Fruits and flowers — Vegetables, fruit trees, as well as blossoms all utilize phosphorus and also potassium to create fruit, seeds, and also blossoms, while nitrogen plays its regular duty in photosynthesis.
  • Trees and bushes — Non-flowering and non-fruit trees additionally make use of phosphorus on a regular basis to assist develop the roots, trunk, as well as branches, while nitrogen feeds the tree’s leaves.
  • Yards — Turf grasses use little to no phosphorus once they are mature, so turf plant foods are usually high in nitrogen yet reduced in the various other 2 macronutrients.
  • Fields and also ornamentals — Pastures, like hay fields or ornamental grasses, will certainly use much more phosphorus than yard yards since they grow to bloom maturation.

Is 19-19-19 Fertilizer Good For Lawns?

Is 19-19-19 Fertilizer Good For Lawns

The three-way 19 ratio can be related to mature yards, however there are some accompanying notes to utilizing this fertilizer equilibrium. Normal maintenance fertilizers normally have NPK ratios with high nitrogen numbers, reduced potassium, and also little to no phosphorus.

This is since phosphorus adds to root development, as well as lawn with well established roots will mostly need nitrogen to generate lawn blades. For recently grown turf seeds, you ought to use a starter formula that is stabilized for seed germination.

That being said, some turfs that spread out by their roots may make use of several of the phosphorus put down with a triple 19 formula, including a number of the warm-season yards like Bermuda as well as Zoysia.

Much of the phosphorus might be remaining, however. If the soil profile isn’t checked carefully, the phosphorus might accumulate as well as make other nutrients like iron and also zinc inaccessible to plants, causing yellowing or receding of yard blades.

Prior to using 19-19-19 fertilizer, or fertilizer of any type of proportion, to your lawn, check the soil degrees to see to it they aren’t currently adequate or too expensive in any kind of nutrient. If you have actually a newly developed yard, the soil might be low in phosphorus and also potassium after root development. In this case, the three-way 19 fertilizer will certainly replenish what was lost and provide the new grass blades with a nitrogen boost.

How Do I Calculate How Much Fertilizer I Need?

After establishing your dirt’s nutrient account and picking a 19-19-19 fertilizer, you require to understand the dimension of the area you’ll be feeding. The area of your residential or commercial property will certainly be a vital consider whether you require simply one or multiple bags.

To find the location of your backyard, you can inspect your act or any study info you could have concerning the building. If you don’t have that, you can measure the lawn in feet. Increase the size times the size for the square video footage of your backyard. There are 43,000 square feet in an acre, and also the ordinary quarter of an acre yard is about 11,000 square feet.

How Do I Calculate How Much Fertilizer I Need

This indicates if you have an average-sized lawn, one bag of 19-19-19 should last for multiple applications. If you have several acres of grass, you will certainly need a few bags to make sure you obtain complete protection.

19. 19-19 Fertilizer Application Rates

A 25-pound bag of triple 19 fertilizer will typically cover to 2 acres relying on just how thick or thin a quantity is applied, using between 10 and also 15 extra pounds per acre. For an established yard, 19-19-19 ought to be made use of as a booster as well as not applied too thick.

A fully grown grass normally needs between 3 as well as 6 pounds of nitrogen each year, and also 19% of a 25 extra pound bag is 4.75 extra pounds. With also application potentially expanded over several months, a 19% nitrogen fertilizer is a considerable nitrogen source for your lawn.

Dry Or Diluted Fertilizer?

The absorption prices of fertilizer will certainly vary based upon the type. Granular fertilizers can be used dry and also will liquify into damp soil over a specific amount of time. Fluid plant foods, on the various other hand, are offered promptly for plants to take in.

You can acquire dry fertilizer as well as weaken it with water, complying with the ratio of one gallon per extra pound of completely dry fertilizer

Avatar for Mutasim Sweileh

Mutasim Sweileh

Mutasim is a published author and software engineer and agriculture expert from the US. To date, he has helped thousands of people make their yards lush and thick.