Perhaps being able to "build" or "plant" these nodes in your campsite or settlement might be a nice addition. You could use the wheatstraw and crab grass harvested in the wild as a material so if you happen to camp or settle in a spot that has less resources available you'll be better able to feed your livestock.

Be nice to have animal feeders capable of holding these foods.

Yes, please consider adding some kind of animal feeder that can hold the food.
As it is now, I have to have a squad member nearby who always has the food in their backpack, or otherwise turn off auto-ditch and distribute the food on the ground, both of which are not ideal.
That said, great mod and thank you very much for your work!

I don't know if this mod is still being updated, but wouldn't it be better that the pasture resource automines itselft using a functionality similar to that of the Iron auto miner.

This could allow that animals actually graze the resources without requiring the player to "mine" the stuff before.

I will test it on my end to see how that goes.