I need some help with pasture management. Please educate me! I have 3 paddocks I wish to do. 1 paddock is sand, and hardly grows much grass (minimal weeds), the second is a mixture of weeds, sand and grass (depending on the time of year). The other is weed-central with minimum grass, which I keep like that as the horses use it to run in rather than graze (this is my biggest paddock). Help? Where do I start!