AEROPONIA. Mini Slotted Pots 50mm - Lots of 1000 - Price is for 1000 mini pots. Introduction to Hydroponics - Lesson 1-2. Four Primary Hydroponic Growing Methods: In a soil garden, plants are rooted in the soil and draw nutrients from it.
In hydroponics, a nutrient rich solution is fed directly to the plant roots. In some hydroponic growing systems an inert growing medium, such as perlite, rockwool or expanded clay pebbles is used in place of soil. These growing mediums are porous and absorb the nutrient solution, allowing the plants to use it as needed. HYDROPONICS RESEARCH: USU CROP PHYSIOLOGY LABORATORY.