Bee - I learned of another little trick that I thought I should share with you. A pasture specialist was teaching this.
It is about over seeding a pasture with clover. I think it should work with other legumes as well, too - but I heard it in reference to clovers.
It seems that cattle do not digest clover seed, so if you want to over seed you simply feed the seed (probably un-treated) to the cattle. As the seed passes through the cow it is deposited with the cow patty - all over the pasture. This one way how clover is said to naturally spread.
This does several things. First the cow patty smothers the grass and weeds directly around and under it providing open space for the clover to get more sun with no competition. Since it is in poo, grazing animals tend to stay away (called the area of repugnance) Obviously it provides nutrition for the clover as well. They say seeding in this way you end up with big clover patches the following year and even bigger patches the year after that.
Interesting?
Of course it makes me wonder about feeding clover seeds to other grazers. (sheep? - horses?). It also makes me wonder about other legumes (lespdezia? - alfalfa?)