Checking Fertilizer Rates

To check fertilizer rates:

Tie a 4L (1 gal) container to machine frame next to a fertilizer opener. Remove delivery hose from opener and insert hose into container.

To obtain gal/acre or L/hectare that will actually be delivered:

1. Drive forward at planting speed 91 m (300 ft).

2. Measure fluid (mL or oz) caught in container.

  • Metric Example:

    Liters Per Hectare Conversion Chart
    Row Spacing Conversion Factor
    51 cm 0.216
    56 cm 0.197
    76 cm 0.144
    91 cm 0.120
    97 cm 0.114
    102 cm 0.108

     

    Multiply fluid mL caught by the conversion factor for row spacing being planted. See Liters Per Hectare Conversion Chart.

    For this example, 296 mL of fluid was captured in container with 76 cm (30 in.) row spacing.

    296 oz x 0.144 = 42.69 L/hectare

  • Standard Example:

    Gallons Per Acre Conversion Chart
    Row Spacing Conversion Factor
    20 in. 0.681
    22 in. 0.618
    30 in. 0.454
    36 in. 0.378
    38 in. 0.358
    40 in. 0.340

     

    Multiply fluid oz caught by the conversion factor for row spacing being planted. See Gallons Per Acre Conversion Chart.

    For this example, 10 oz of fluid was captured in container with 76 cm (30 in.) row spacing.

    10 oz x 0.454 = 4.54 gal/acre

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