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Fertilizer Calculator

Look at the fertilizer bag for the Total Nitrogen. This is on the front of the bag, the first of the three large numbers, or on the back of the bag on the label.
Also on the label, sometimes beneath the total nitrogen or at the bottom of the label, is the percent of slow release nitrogen.
Seminole County requires your fertilizers be 65% slow-release nitrogen.

This is the pounds of fertilizer you need in order to apply 1 pound of Nitrogen per 1000 sq ft.

Calculate length x width or try to visualize how many parking spaces or volleyball courts would fill your yard. A parking space is about 100 square feet and half a volley ball court is 1000 square feet.

This is how many pounds of fertilizer you need for your yard. Measure out the pounds with a scale or take the portion of fertilizer you need based on how many pounds are in one bag.


How to Calculate Slow Release Nitrogen (SRN)

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