allellopathic pulse crops?

[tigerd]

I have noticed much nicer pulse crops on canola stubble, than the opposite, canola on pulse crop stubble. I doubt because of the snow recharge in the deeper stubble, as usually spring moisture was good whenever I would try these types of rotations. Ultimately, I seem to grow the best canola in wheat stubble.

Anyone else notice this?

[kslseed]

Could be, that the canola removed large parts of available N, pushing the peas to make their own. We saw this last year in Southern Alberta, with 6-7" of rain in 3 days. All grain crops looked yellow for 3 weeks, peas looked beautifull. Joerg Klempnauer