I've always gone with a fertilizer like a 13-13-13 on clover to give it a boost at planting then after only use 0-20-20. If you keep the weeds killed out and with adaquate amout of rain to carry the clover over through the dry months then it should do fine. I always like to plant new clover plots in the fall to get a root system started to help get the clover through the dry months and hopefully not burn up.