I would like to find a good leguminous cover crop that sprouts quickly, and grows fast, especially the roots. What are the best ones for this purpose (and the pros/cons of those you mention)? Disease/pest resistance is a major plus, but not strictly required. We've got a lot of aphids, whiteflies and stuff at the moment.
Also, I'm curious if some leguminous crops attract more of the good bacteria than others. Feel free to comment on that as an aside.
I'm new to cover crops. I've only tried pinto beans so far (they were the legumes I had on hand). They must have been old, because only a few of them sprouted, though. They took a long time to germinate, and they attracted aphids and white flies like crazy, as well as something that's been eating large portions of them.
I was thinking lentils would sprout a lot faster (they sprout well as sprouts you eat, anyway). Is clover a lot better than lentils, maybe?