Gypsum is a naturally occurring mineral that has been used in the United States since Benjamin Franklin first applied ground raw gypsum, called land plaster, on his soils. Today, as Franklin did ...

Attempts are made, in the case of several soils, to correlate the sulphur, phosphorus, and organic matter content with the production of the soils, previous treatment ... same amount of sulphur as 100 ...

Many gardeners bemoan the presence of heavy clay soil, but there's a case for its use in your yard thanks to certain benefits ...