EXERCISE 9. TO SHOW THE AMOUNT OF MOISTURE 

 RETAINED BY PLANTS 



Equipment : A pair of scales and a drying oven. 



Method: Dig up enough clover or corn plants from 

 the field to weigh about five pounds. (If accurate balances 

 are available a single plant will be sufficient.) Weigh 

 carefully and record the weight. Place the material in 

 a shallow tray or pan, set the pan in bright sunlight until 

 the contents are thoroughly dry and again weigh. Sub- 

 tract this weight from the original weight and calculate 

 the per cent of moisture lost. 



How many pounds of green clover are necessary to 

 make a ton of cured hay? How much dry corn fodder 

 in a ton of green corn plants? 



Place the dried plants in a drying oven and see if more 

 water can be driven off. 



Kind of Plant. 



Green Weight. 



Sun-dried. 



Oven-dried. 



18 



Per cent of 



Moisture in 



the Green 



Plants. 



