movement of nutrients

Nutrients and other dissolved compounds will move from the source area (Source) to the area utilization (sink). Thus it will move either plant nutrients in the soil near the roots and after terabsorpsi penetration by plant roots.
  Some plants need nutrients absorbed by plant roots of the plant growth media. Land is the main medium of plant growth and is a storehouse of nutrients for plants. To daopat terabsorpsi by plant roots, the nutrients must be contacted directly by plant roots. Thus there must melanism nutrient movement that allows the roots of plants can be contacted directly by the nutrient-nutrient in plant growth media There are two main mechanism of nutrient movement to plant roots in contact directly with the mechanisms of diffusion and mass flow.