Cover crops

I came across this article on my internet travels about increasing use of cover crops in farming in the US. Looking at local farms, I can see the same sort of activity though in the US, it look like glyphosate is used to kill off the crop before planting afresh. Buying cover crop seeds can be quite expensive but, may be, just go shopping for a packet of barley or such like would do.

https://www.reuters.com/markets/commodit...022-01-04/

"CHICAGO, Jan 4 (Reuters) - Illinois farmer Jack McCormick planted 350 acres of barley and radishes last fall as part of an off-season crop that he does not intend to harvest. Instead, the crops will be killed off with a weed killer next spring before McCormick plants soybeans in the same dirt.
The barley and radishes will not be used for food, but Bayer AG (BAYGn.DE) will pay McCormick for planting them as the so-called cover crops will generate carbon offset credits for the seeds and chemicals maker."

and later in the article:

"Cover crops can be a really important part of organic and regenerative farming systems," said Amanda Starbuck, research director with Food and Water Watch. "But it all depends on how they're being implemented."