OATS 



Since the percentage of hulls varies in different varieties 

 and in different seasons, the composition of different lots 

 of oats is naturally variable. A sample of oats with 

 slender or incompletely filled grains is inferior in composi- 

 tion and food value to a sample of plump oats. The hull 

 averages about 30 per cent of the total weight of the grain. 



8. Draft on soil fertility. — The following table ' shows 

 the amounts of nitrogen, phosphoric acid, and potash re- 

 moved from the soil in a crop of 40 bushels of oats and 

 the accompanying amount of straw : — 



' Calculated from data in Hopkins' 

 manent Agriculture." 



"Soil Fertility and Per- 



