By Potatoes
United Kingdom 
I have bought some green manure to grow. Can you put it in with crops?
26 Jul, 2017
Previous question
« What are the lumps of dark green algae looking stuff which grows in damp gravel
Hi Potatoes and welcome to GoY, no you sow the green manure separately and then dig it once it has grown. What you need is a patch of land that won't have a crop on it for about 6 weeks or more. Copy and pass the link below for more information...
http://www.bbc.co.uk/gardening/basics/techniques/soil_growgreenmanure1.shtml
26 Jul, 2017