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IMPORTANT:
Ensure the liquid fertilizer system is working as designed. Perform a rate check on all rows of the planter simultaneously. Checking only one row is not a good indication of fertilizer system performance.
| Liters Per Hectare Conversion Chart |
| Row Spacing |
Conversion Factor |
| 51 cm |
0.081 |
| 56 cm |
0.074 |
| 76 cm |
0.054 |
| 91 cm |
0.045 |
| 97 cm |
0.043 |
| 102 cm |
0.041 |
| Gallons Per Acre Conversion Chart |
| Row Spacing |
Conversion Factor |
| 20 in. |
0.255 |
| 22 in. |
0.232 |
| 30 in. |
0.170 |
| 36 in. |
0.142 |
| 38 in. |
0.134 |
| 40 in. |
0.128 |
1.
Calculate size of collection container required.
Size of container required = L/ha (gpa) expected ÷ conversion factor.
METRIC example, 45 L/ha is expected application rate. Conversion factor for 76 cm row spacing is 0.054.
45 ÷ 0.054 = 833 mL
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Use a container capable of easily collecting at least 833 mL.
STANDARD example, 18 gpa is expected application rate. Conversion factor for 30 in. row spacing is 0.170.
18 ÷ 0.170 = 106 oz
Use a container capable of easily collecting at least 106 oz.
2.
Tie a container to machine frame next to every fertilizer opener. Remove delivery hoses from openers and insert hoses into containers.
3.
Drive forward 244 m (800 ft) at planting speed.
4.
Measure number of mL (oz) in each container.
5.
Calculate actual application rate for each opener.
Measured mL (oz) x conversion factor = actual rate
METRIC example, 789 mL were captured in container. Conversion factor for 76 cm row spacing is 0.054.
789 x 0.054 = 42.69 L/hectare (Actual Application Rate)
STANDARD example, 118 oz were captured in container. Conversion factor for 30 in. row spacing is 0.170.
118 x 0.170 = 20 gpa (Actual Application Rate)
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