Any of the brands are good. I would look at the ingredients and compare price and forget the sales promises. Foliar is a supplemental feed and it is not really fertilizer. If you want add a bit of color and nutrition to your hay you can apply it a week or so before you cut the hay and it will be some fine hay. For pasture, you might want to spray alternating bands and see just what you are getting for your time and money. One of the big companies gave me some to sell me on their stuff and this is what I did. Once. Boosting hay is another story though. Foliar does work but it is short lived. You may get about a two week flush of lush green. You might want to look some of the ones the vegetable growers are using and you can usually get a cheaper price than some of these magic solutions and snake oil that's often peddled as pasture cure-alls. One thing you need to be careful about is some of these will mine your soil reserves which you will eventually have to replace. Just remember, if your soil test calls for 50 lbs of N and 30 lbs of P and 20 lbs of K, you aren't going to get this out of a pint of some tea colored solution that contains a lot of iron.