Physical Properties (Leaving Cert Agricultural Science): Flashcards

The structural characteristics you can observe and measure

How soil particles group together to form aggregates

Ideal balance of sand, silt, and clay particles

Largest; good drainage but don't hold nutrients well

Smallest; hold water/nutrients but restrict drainage

Soil particles pressed together, reducing pore space

Decomposed plant/animal materials that improve soil structure

Loss of topsoil through wind or water action

Natural breakdown of rocks into soil particles

50-60%