Suffix[edit] -al. of or pertaining to; adjectival suffix appended to various words, often nouns, to make an adjective form. Often added to words of Latin origin, but used with other words also.
Remember: there is a difference between soil and dirt. Dirt is what you get on your clothes and hands while working in the soil. Soil is made up of elements that have been decomposing since the earth was created. Soil is composed of bedrock and mountain stones broken down over eons by wind and rain.
Working With Clay Soil. Clay soils are sometimes referred to as heavy soils and sandy soils are called light. To be classified as clay soil, it should be made up of about 50% clay particles, the finest particles found in soil. As far as the gardener is concerned, clay soil can cause a number of problems. On the positive side, clay isnât necessarily all bad. It has good moisture and nutrition retention.