To eliminate cogongrass and prevent regrowth, the rhizomes must be destroyed. It has been shown that an integrated approach that combines burning, tillage (mechanical disturbance), and chemical applications provide the best solution for cogongrass management.
1 Force of magnetic field: the force exerted by a magnetic field. 2  Attraction of magnets for iron: the phenomenon of physical attraction for iron, inherent in magnets or induced by a moving electric charge or current. 3  A general term that refers to the effects originating from the electromagnetic interactions of particles.
The electric field, E {\displaystyle \mathbf {E} } , at a given point is defined as the (vectorial) force, F {\displaystyle \mathbf {F} } , that would be exerted on a stationary test particle of unit charge by electromagnetic forces (i.e. the Lorentz force).