Gypsum is supposed to help with high salinity in your lawn. Is this true and where do I buy it? | |
Answers:
1Gypsum has very little effect on the acidity or alkalinity of the soil. The way it does help to get salt out of the soil is that it loosens the electrostatic charge between soil particles, thus loosening the soil. When the soil is looser the water leaches through easier taking the salt with it out of the root zones of most plants.
You can get pelletized gypsum at nearly any good lawn and garden center but call first. Sometimes they may not have it at this time of year. Put it down according to the instructions. A 40# bag will do about 1000 sq ft.
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