Proper Settings for Broadcast Spreaders for Granular Lawn Products

Broadcast Spreaders

• Broadcast or rotary spreaders distribute product in a wider swath compared to a drop spreader. This is convenient for yards with a large area. This convenience is sensitive to variables affecting the rate of application. Speed of application, type of terrain and the route taken all influence the setting required for proper application.

Choosing a Setting

• Calculate pounds per square feet before selecting a setting. Each bag of product should state how many square feet covers and how many pounds of product are in the bag. Divide the weight by the recommended coverage amount. The numbers on the spreader dial indicate how much product to apply for 1,000 square feet. Multiply the previous answer by 1,000 to get the setting number for the spreader. Multiple passes are recommended for even application, so divide the setting number by how many layers of application. Each spreader is slightly different, as are the needs of each lawn. Make adjustments if the application amount is too high or too low.

Application Tips

• Choose a block pattern with multiple passes and a steady pace to apply product. The faster the pace the thinner the product. Start with the lawn’s edge, and then fill in the center with evenly spaced passes preventing gaps and streaks. Closing the spreader on the ends of each pass prevents too much fertilizer from collecting at the row’s end. Water the lawn after each application, as required to break down granular products. If too much fertilizer is applied, heavier watering is the antidote.

Caution

• Use caution when applying pesticides and weed killers with a broadcast spreader. These chemicals are harmful to other vegetation and animals. Gloves and masks are recommended when handling chemicals. Wash the unit after each use. Mixing chemicals can be dangerous, and residue from a previous session may inadvertently be applied to unintended areas.