Hi all, I have been trying to keep up with the weeding in my veggie garden. Amidst my onions is a fair amount of clover. If I leave it will it add nitrogen to the soil for the onions? Assume there is adequate water for both "crops". When I had my soil tested in the spring it was very high in phosphorus & potassium but very low in nitrogen. 2 other gardeners had the soil tested in their plots & the results were the same.