Quote:
Originally Posted by Richard
Sodium Sulfate (NaSO4) is a death sentence to most plants and the soil. Most fertilizer manufacturers go to great pains to keep sodium out of their products. If you apply it, it might take a few to several years of leaching before anything grows there again.
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I have do have some other things that I would really like to kill in some areas like popcorn trees and other invasives that do not die readily. I probably need to get sapling puller for them. If my planted trees grew as well as the wild volunteers I would really be very happy. Many years ago I was out west and you could see where standing runoff water from irrigation would raise alkali salts from below and poison low lying areas. Salt or NaCl has been used for years by invading forces to poison the soil. So you are saying perhaps K2SO4 is ok and Na2SO4 is bad? We get 60 inches of rain here a year so maybe it would stay around and maybe it would not. I will have to look this up for sure.
Thanks for the warning.