No-Till in fescue pasture?

most of my fields are nice and flat river bottoms so i till and plant them...

 

but i have one field that has a lot of fescue and native grasses in it that is attached to a existing hay field.........but this field takes a lot of water off the rocky hills and then spreads it out as it flattens to a existing hay field  (fan shaped).....so it has several water run of low areas in it ...so i want to leave the sod to control erosion (its small 3-4 acres)

 

i am afraid to till it as it would probably wash out in heavy weather.....so i am wondering about doing a burn down spray and then no-tilling seeding this fall brome/timothy/clover mix

 

my question is am i just fooling myself thinking i can no till seed in to dead fescue sod successfully after a burn down or a waste of energy?

 

i am open to thoughts and suggestions 

No-Till in fescue pasture?