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