Takeaway

The presenter, Ken Ferrie, explains that relay cropping makes soybeans the primary, higher-yielding crop and extends their viable growing region further north than traditional double cropping. This is because relay cropping gives soybeans a one-month head start, reducing the risk of an early frost hitting before maturity, a key risk for double-cropped beans.

What the presenter said

• Double cropping is the practice of harvesting wheat and immediately planting soybeans, often within a day or two. [00:06]
• In contrast, relay cropping involves planting soybeans into the wheat crop in the spring while it is still growing. [00:21]
• The presenter argues that in a relay system, soybeans become the primary crop, with wheat secondary, as the beans get a month-long head start and may be flowering by the time the wheat is harvested. [00:36, 00:38]
• With double cropping, wheat is the primary crop, and the yield from the second-crop soybeans is less certain. [00:45]
• Double-cropped soybeans are typically planted in late June or early July, and the speaker notes his location is about the northern limit for the practice to work. [00:53, 00:58]
• Relay cropping could potentially be used as far north as Minnesota. [01:00]
• The presenter highlights that relay cropping gives soybeans the full growing season, unlike double cropping. [01:27]

Trade ideas

None stated. The presenter's focus was on the agronomic differences between the two cropping systems.

Risks and what would invalidate this

The presenter outlined the following risks specifically for the double-cropping system: * Lack of sufficient moisture for the second soybean crop to germinate and grow. * The risk that double-cropped soybeans will not mature before the first frost.