I have one small crop field. I have grown oats several times on it. I use it for pasture for horses in the winter, then take them off in the spring and later combine the oats for grain. I MUST rotate to some other crop. What would be good? I've thought of grain sorghum/milo, but nobody ever feeds that to horses, do they? And, it wouldn't be planted until spring, so there'd be no winter grazing. Ideas?