soil conditions are all physical, mechanical, chemical and biological processes that control the properties and characteristics of the soil and its behavior. the amandement is an action, a procedure that aims to correct and improve soil conditions.
Conditioning a soil is general manner which provides improvement to a soil while amendment is more likely to apply a substance to soil to obtain a certain condition.
Soil conditioner is “any material which measurably improves specific soil physical
characteristics or physical processes for a given use or as a plant growth medium.” but Soil amendment is defined as any material that is either left on the soil surface or incorporated into the surface layer to decrease runoff and soil erosion while also improving soil properties