Memory PLSC101 Memory Game 2Version en ligne Lab Group 7 Topics: Soil parts and tillage par cindy s Gravitational Water Ridge Tillage Mulch Tillage Light tillage to mix up and move crop residue on the surface. Soils that are formed under grasslands, very good for crop growth. Top layer of soil that is made up of organic matter, water, air and mineral particles Made up of decaying animal and plant residue degraded by organisms Humus Mollisol Conventional Tillage Moldboard Plow No-Till Pore Space Deep tillage to bury residue, followed by shallow tillage to smooth Organic Matter Organic component of decomposed leaves and plant material Conservation Tillage Topsoil