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February 2021

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Fertilizing the lawn is not always problem-free. On the one hand, you can miscalculate the amount of fertilizer; on the other hand, the fertilizer is often not spread evenly enough on the surface. There is also often confusion about the timing of fertilization. The following are the answers to the most frequently asked questions about lawn fertilization, you can invite a professional in earth development to guide you:

How Much Fertilizer Is Needed?

Depending on the nutrient content of the soil, the lawn has to be fertilized differently. Therefore, it is advisable to carry out a soil examination every three year, which provides precise information about the phosphorus, potassium, magnesium content, the type of soil, and the current pH value. For a standard test, an amount of soil of 300 to 500 g is sufficient, which should be taken from 10 to 15 places on the lawn with a depth of 10 cm. Most test laboratories even offer individual fertilization recommendations with the evaluation of the soil samples.

How Is The Fertilizer Optimally Applied To The Lawn?

The lawn fertilizers are usually granulated that can be spread over the lawn and can be evenly distributed over the lawn using a spreader. However, for large lawns, a centrifugal spreader is also the right choice, which is held in hand and operated by a battery.

It is recommended to apply the fertilizer on a dry lawn. This way, the granules do not stick to the damp grass. If that does happen, they can easily be rinsed off the leaves with a water hose or sprinkler. After fertilization, there should be no mowing for about two days. This prevents the fertilizer from being immediately absorbed by the mower.

Rain or water is necessary for the fertilizer to dissolve. If it does not rain after fertilization, you should promptly ensure that the fertilizer dissolves by sprinkling (2 doses of 10 to 15 l / m²) yourself.

Water the lawn with a circular sprinkler. If there is no natural precipitation, irrigation can be used to ensure that the fertilizer dissolves quickly.

When Are the Best Fertilization Times?

When and how often a lawn should be fertilized depends primarily on the growth rhythm of the grass. However, three fertilization times have proven to be particularly effective for use and ornamental lawns:

  • Lawn Fertilization in Spring:

Lawn grasses must first regenerate after winter. This process can be promoted with fertilization in March or April as part of spring maintenance. Lawn areas seldom used and therefore only have a low nutrient requirement (e.g., herb lawns) should receive their main fertilization in spring.

  • Lawn Fertilization in Early Summer:

The grasses’ nutrient requirements are highest in early summer because they are in the main tilling phase, i.e., they form dense clumps or numerous runners. If you fertilize your lawn now, you will also stimulate the formation of shoots and scars. Also, lawn fertilizing st charles mo at this time promotes the resistance of the lawn to the heat of midsummer. Optionally, another fertilizer can be added in August. This then ensures a fresh green lawn in autumn.

  • Lawn fertilization in autumn or winter:

The lawn should not be fertilized between the end of August and the beginning of October. It is not recommended to use potassium-based fertilization until October to strengthen the plants for the coming winter.