Hay.
I garden organically, but I’ve been known to use a little Round-Up here and there, away from food beds. I’m no Purist. ;)
I’ll ask the guy who plants the acreage he rents from us if he’s seeing shortages. He grows mainly alfalfa and Timothy grass for hay for his dairy herd; soybean and corn in rotation for feed, too. He does everything by the book - our County has strict regulations on chemical use as we’re in ‘Hill Country’ and everything eventually rolls downhill to where our waterways are.
Lots of paperwork for us both to fill out each season and they DO come to check if you’re growing what you SAY you’re growing where and when you’re growing it. Luckily, I’m usually the one home when our County Agent pays a visit...and he is darn handsome! Of course, young enough to be my oldest son, but still. ;)