Leaving roots in the ground

[welshboypaul]

Hi

I have started cutting back plants that have stopped fruiting, such as peas & beans, and have cut down the base of the stem, so that there are 1 - 2 inches showing above ground.

My question is this - does it benefit the soil to leave the roots in the ground so that they rot in situ, or should I dig them out an compost them?

Thanks

WBP

[taff]

it benefits the soil to leave them there because their nodules fix nitrogen, so if you leave them decompose in the ground, you've added nitrogen without doing anything