The following chart is meant to provide general guidance when an actual setting is not available. The age and condition of the spreader may affect the flow of the product. The spreader may need to be calibrated to get the proper coverage.
To calibrate your spreader:
- Determine the amount of fertilizer needed for 100 sq. ft.
- Divide that number of square feet the bag of fertilizer covers by 100.
- Divide the weight of the bag by this number.
- The answer is the amount of fertilizer needed to cover 100 sq.ft.
- Place this amount in the spreader.
- Mark off a 10 ft. by 10 ft. area.
- Apply using the suggested setting.
For example, the fertilizer bag weighs 25 lbs. and covers 5,000 square feet.
100 sq. ft.
————– x 25 lbs. = ½ lb.
5,000 sq. ft.
½ lb. of product is needed to cover 100 square feet.
- If product runs out before completing the area, decrease the setting. Mark off another area the same size and repeat the test until the correct application rate is achieved.
- If product remains in the spreader, increase the setting. Mark off another area the same size and repeat the test until the correct application rate is achieved.
3 lbs./1,000 sq. ft.
|4 lbs./1,000 sq. ft.||
5 lbs./1,000 sq. ft.
|2 ½||3 ½||4|
|3 lbs./1,000 sq. ft.||4 lbs./1,000 sq. ft.||5 lbs./1,000 sq. ft.|