MANHATTAN, Kan. -- Current soybean seeding rate recommendations for Kansas are comparatively simple -- three seeds per square foot, which translates to 130,680 seeds per acre, said Kraig Roozeboom, K-State Research and Extension Crop Production and Cropping Systems Specialist.

"This assumes 80-percent emergence for a final stand of about 105,000 plants per acre," Roozeboom said. "The seeding rate recommendation applies regardless of row width, date of planting, and variety growth habit."

In high-yield, irrigated environments, the final stand should be closer to 150,000 plants per acre.

These recommendations are about 42,000 seeds per acre (and 35,000 plants per acre) less than the recommendations of the mid-1990s, he added.

"Research has shown that weed suppression by the soybean canopy is not as important to maintain yield now as it had been in the past because of the widespread use of glyphosate-resistant varieties," the agronomist said.

SOURCE: K-State.