I was working on our Redvers pea oat intercrop data today. Yields overall were fairly low. Intercrop worked out pretty nice but it's still kind of 6 of one or half a dozen of the other. Tried 5 different oat seed rates for intercrop. There's overyielding compared to peas with no

Weed control. Compared with a hand-weeded pea monocrop, some pea oat intercrops had land equivalencies at about 1. We used half the N fertilizer in the intercrops. Is it a win or a loss as an intercrop? That's entirely in the eye of the beholder.

The intercrop pea/oat was more efficient than monocrops in yield (LER) where there was no in-crop weed control. Where the peas were hand-weeded, intercrops were basically the same efficiency as monocrops.