If you try to spread around a 20-10-30 product with your bare hand you will end up with chemical burns. Same thing with your plants, if application is uneven and you end up with a little pile in one spot, that area will be way too hot for normal plant growth.
lol god damn dude, what do yo fertilize with KOH prills? are you growing plants in a bucket of acid?
\i think you are confusing anhydrous ammonia with fertilizer salt type prilled compounds. Anhydrous ammonia is NOT available to the public, nor is it even applicable to your lawn without an expensive piece of equipment, so i dont see how one could handle it. furthermore anhydrous ammonia is to be stored as a pressurized liquid, owing to its volitle nature. getting it on your skin will cause grievous injuy if not promptly washed off. i dont know the numbers by anhydrous will suck up many many many times its weight in h20, it dosent care if that H20 belongs to your skin or to the soil. minor cases are treated without incident, however sever cases such as when one is exposed to a spill or accidentally sprayed are terribly grievous, i dare you do google ammonia burns.
NOTHING inside any bagged 20-10-30 fert will give you "chemical burns" however. i suppose if you were to make a dope and paint it all over your body for a stupid period of time... however saying they will chemically burn you is ludicrous.
ive had on MANY occasions contact with almost every concievable salt one would use in a fertilizer compound, and i can tell you that they are more benign than most chemical i stor under my sink. acids for ph adjustments are an exeption to this however, they are neither in an NPK prilled fertilizer, nor are they something you could even handle with bare hands. regardless i have had my share of 12 molar ~35% HCL and fairly dilute H2SO4 on my hands and it is difficult to burn yourself in much the same manor it is to burn your hands holding it over a candle... a few seconds of exposure and you are greeted with a distinct painful tingle that feels like hundreds of ant bites, a few more seconds leaves you with a roaring burning sensation, 10 to 15 seconds exposure to decently concentrated HCL on dry skin results in an observable discoloration of the skin with no observable reddening. the same when in the mouth is reminiscent of 9v battery. i describe it as 15x 9volt batterys electric shock+ a startlingly sour taste .
ask me how i know?
H2SO4 is a different beast, however it is almost never used in concentrated forms owing to expense and the dangers associated with storing it in plastics and in general. same for HCL, the cheep stuff is sold at around 35%, and is not terribly dangerous to the non dim witted.
the stuff sold as ph down is even more fool proof. i suspect i could bath in the stuff. however i attribute this to greed on the part of the hydro companies rather than to concern for safety. nitric acid is comparitivly expensive, and hence is often diluted down to laughable levels. i would require over 200ml of gen hydro PH down to drop my tap water by itself down to 5.5. i accomplish this with between 25and 30 ml of 12 molar hcl.
what you WILL notice when you handle many fertilizer salts, is they WILL draw moisture right out of your skin and cause irritation. the daft will undoubtedly ignore this risk and persist, and wind up with red irritated hands after a long time, however calling this a chemical burn is ludicrous. chemical irritation maby...
please show me a run of the mill prilled fertilizer that will burn you because im genuinely interested.
.