Should I leave mustard (brassicaceae) roots in the soil ?

Hello ! I've planted a few months ago mustard, which is nicely going to seed. The idea was to improve the soil, however I might have been mistaken, as apparently I'd have needed to cut it before it went to flower.

However I'm going to harvest it soon, and I want to leave the roots in the soil, so that they'll decompose and improve the soil structure. But then, another plot twist happened: apparently, brassicaceae roots leave chemicals in the soil that will inhibit other plant growth (from what I've read somewhere on the web).

So what the hell am I supposed to do ? Leave the roots, or pull them up ?

Hi Mike,

I always leave the roots in the soil, and I haven't noticed any problems with other stuff growing. I hadn't heard about them releasing chemicals, but I don't know.

I leave brassica roots in the soil all the time and have no problems. If your soil is biologically active it should process out any such chemical provided it is mild.

Okay, so I won't take any particular precautions then. Thanks everyone for replying !