• Wheat Seed Drill Calibration

Wheat Seed Drill Calibration

It’s hard to believe that it’s almost time to begin wheat planting. K-State Extension’s wheat specialist research has concluded that sowing date plays a major role in crop yields. Here in Greenwood County, we are located in Zone 4, which has a recommended planting date between October 5-25. Planting after recommended dates can mean a whopping decrease in yields of up to 3.5 bushels an acre per day.

To prepare for wheat planting, consideration needs to be given to proper drill calibration. Drill calibration can increase the chances of success of the wheat crop by ensuring the amount of seed planted per acre is close to the target. K-State Research and Extension’s Wheat Specialist, Dr. Romulo Lollato offers the following recommendations for calibrating your wheat seed drill.

There are several methods to calibrate seed drills. In this article, we discuss the stationary method, which is a simple 4-step method to calibrate a wheat drill prior to planting. In stationary drill calibration, a drill operation is simulated by turning the drive wheel freely above ground, weighing the seeds delivered from the drill spouts, and comparing to a targeted seed weight by length of drillrow. Note: some drills are designed so that using the stationary drill calibration method cannot be easily done and the drill needs to be operated to calibrate.


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