In the past, I've applied a couple cups worth around my garden every 2 or 3 weeks and had zero issues with deer. One $13 bag is enough to keep the garden protected for the whole summer growing season.

For the plots, I'd apply about every 3 weeks. Putting out a bunch at once is not better than putting out less per application, but every few weeks. I'm not doing this all summer, just long enough for the beans to get mature enough to handle browsing pressure. After that, let the deer pile in all they want. Obviously, you'd want to plan your last application wisely so that the smell is gone by the time the season opens up.

Success will depend on deer density, other available forage in the area, and it's a lot easier to hit the garden in the backyard every couple weeks than hunting land that might be a couple hours away.