OCR Text |
Show Tons of Water. A grass plant will, in the course of a hot day, exhale its own weight of water, and a young leaf of wheat or rye exposed to the sun may even exhale ex-hale its own weight in an hour, is a , surprising statement to be found in the Agricultural Year Book. Experiments Experi-ments summarized by Storer indicate that "more than 300 pounds of water pass through a plant, and are transpired trans-pired from its leaves for every pound of dry matter fixed or assimilated by the plant." In Wisconsin, King found the mean amount of water used by barley, oats, cirn, clover, peas and potatoes in producing a ton of dry matter ranged from 270 tons for corn to 576 tons for clover, "the average for the six crops being nearly 450 tons, or four acre-inches, for each ton of dry matter." |