Item title reads - Speeding up crops.
M/S as a man walks through a very large greenhouse full of growing carnations, he is carrying a bunch of the flowers which have been grown in sand, C/U of the flowers. M/S exterior of an American farm. M/S as tiers of trays containing barley and wheat are placed in a cabinet in the barn, they are soaked in water then fed with a mixture of boron and manganese. They are brought out afterwards to reveal how much they have grown. The farmer pulls the fodder from the tray like a mat and feeds it to his cows.