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Half-bushel gain pays calibration

Something as simple as calibrating your planter this winter may impact your bottom line in 2001 as much as the introduction of hybrid seed corn did in 1926.

Research results recently released by Pioneer Hi-Bred International, Inc., show an average yield increase of four bushels per acre when finger-pickup-style planters are properly repaired and calibrated.

This type of meter is typically found in John Deere, Kinze and White planters.

"Our research shows for an investment of approximately 85 cents per acre, growers received an average of $8 per acre in increased yield as a result of properly calibrating their planters," says Tom Doerge, agronomy research manager for Pioneer in Johnston, Iowa. Estimates are based on $2 per bushel corn prices and planting average of 600 acres. "An increase of just one-half bushel per acre is needed to make the calibration service pay for itself, yet the producers who participated in the study, on average, saw a four-bushel-per-acre yield advantage."

Eighty producers cooperated with Pioneer to conduct nearly 100 on-farm, split-planter comparisons.

Results ranged from an increase of 23 bushels per acre to no improvement and varied in relation to the condition of the individual planter.

Pioneer agronomists estimate that yield losses due to non-uniformity of planting spacing often range between three and five bushels per acre for modern planters.

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