The chemical manufacturer may recommend the rate of application for granular chemicals in the following ways:

1. Ounces per 1000 linear row feet.

2. Pounds per acre for a given band width and row spacing.

3. Pounds per acre for complete (broadcast) coverage.

When the chemical manufacturer recommends ounces per 1000 linear row feet or pounds per acre for a given band width and row spacing, proceed to the chemical manufacturer's recommended meter setting or to the meter setting recommended in the rate charts in this section.

When the chemical manufacturer recommends pounds per acre for complete (broadcast) coverage only, it is necessary to reduce the pounds per acre to apply for your band width and row spacing. This will give you the same chemical concentration in the band area as the chemical manufacturer recommends for complete (broadcast) coverage.

Use the following formula to find the pounds per acre for your band width and row spacing.

NOTE: We recommend you actually measure the band width applied in your conditions and use this width in your application rate calculations.

A-Chemical manufacturers recommended rate in pounds per acre for complete (broadcast) coverage.

B-Band width in inches.

C-Row spacing in inches.

Example: The chemical manufacturer recommends 20 lb/acre for complete broadcast coverage. The band width is 14 in. The row spacing is 30 in.

The required delivery rate for 14 in. bands and 30 in. row spacing would be 9.3 lb/acre. Set meter setting recommended for 9.3 lb/acre broadcast coverage.

Delivery of 9.3 lb/acre of chemical in a 14 in. band will provide the same chemical concentration on the soil surface as delivery of 20 lb/acre broadcast coverage.

Proceed to chemical manufacturer's recommended meter setting or to the meter setting recommended in the rate charts in this section which will deliver 9.3 lb/acre.

To check the exact number of lb/acre of chemical that will be delivered, attach a plastic bag to each chemical diffuser, lower the planter, and proceed as follows:

Drive 500 feet at planting speed. Weigh the chemical in oz. that was caught in one bag. Multiply that amount by the factor shown to determine lb. per acre.

Check the chemical caught in each bag in the same manner.

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Example: Assume you are planting 38 in. rows and you caught 5.6 oz. in one bag (one row). 5.6 oz. times 1.7 (factor for 38 in. rows) equals 9.5 lb. per acre.

If the desired amount is not obtained for each unit with the first setting, turn the metering knob and repeat the check until desired amount is delivered.

NOTE: If a significant difference in rate is observed between rows, the meter dial mechanism may require recalibration. See your John Deere dealer.

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