Item title reads - Soil-less crops! A farming revolution.
New Jersey College of Agriculture. America (USA).
M/S of a man planting a tomato seedling in a pot of sand. M/S as water, which includes elements from soil, is poured from a test tube into a glass bottle through a funnel. These are attached to the pots and give the liquid a drop at a time. M/S of huge plants thriving. M/S of time lapse photography comparing a plant which has normal food and another which has added boron and manganese. The latter grows considerably more than the other.