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Soybean seeding rates: The balance between cost and yield

Encyclopedia Article

Since 2003, the soybean extension program has conducted more than two dozen experiments across the state to evaluate seeding rate recommendations. Extension researchers have used seeding rates of 75,000, 125,000, 175,000, and 225,000 seeds per acre and determined how these seeding rates performed both at early and late planting dates and in 15" and 30" row spacing. This research was funded by the checkoff and the Iowa Soybean Association, and new seeding rate recommendations have been released based on the information gathered from these experiments.

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