Soil Types , Soils are aggregates or complex mixtures of minerals, water, air, organic matter, and countless organisms. Soils supply plants with nutrients, most of which are held in place by particles of clay and organic matter (colloids) soil types.
e nutrients may be adsorbed on clay mineral surfaces, bound within clay minerals (absorbed), or bound within organic compounds as part of the living organisms or dead soil organic matter.
CHALKY SOIL
soil types....
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