SOIL FOR GROWNG VEGETABLES is not just an accumulation of dirt and rock. It is a combination of organic material, living organisms, air, water and minerals. An ideal soil for vegetables contains 50 percent of solid matter and 50 percent pore space, with water occupying about half of the latter area.
Basically there are three types of soil—clay, sand and loam. (Some classifications also include silt, an intermediate grade between clay and sand, consisting of gritty, hard-packed particles.) We will follow that system in this discussion.
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