I guess no one knows. I've heard 1 part milk to 10 parts water all the way to spraying straight milk (whole, buttermilk, skim or other ???).

I use regular dry milk sometimes as an extra fungal food in my aerated compost tea brews.

Sometimes I just add some dry milk to a 5 gallon bucket of rain water with a little dry molasses in it, as a quick soil drench or foliar application, with healthy fungicidal effects.

Plus the milk products add extra soluble calcium to your plants too.

Oooooh! OOOOOoooooh! OOOOOOOH! I know, I know, I know!!!

3 ounces of milk per 1,000 square feet of turf.

David you are so wild, my friend!

Afer using milk as a fertilizer on my lemon tree, I'm now using milk as a fertilizer for my African violets. I tried it on two last fall and the change in soil quality was so sudden and so incredible that I killed the first violet I tried it on. The problem is that the first time I tried the milk the soil remained the same light mix as before. But the second time the microbes had definitely filled in. The second time I watered it the water did not evaporate out in a few days like before. The result was I actually watered it about twice as much as it needed and the plant rotted in the soil. Knowing that I immediately checked my second plant and it was standing in about an inch of slimy water. I tossed that water out and the plant doesn't seem to show any problems. But the plants now can go for 2-3 weeks between watering instead of 4-5 days. And they don't seem to show any problems with the soil being too "heavy." But this is all pretty new so we'll see what happens in a few months/years.