r LESSONS ON CORN. 9 
Corn roots: Dig down around a hill of corn and see how near the 
surface the roots grow. How far do they extend from the stalk? 
How deep could the cultivator go without hurting these roots? 
(Fig. 2.) About the time that the corn tassels come out the “ brace 
roots” appear. Find some of these roots. What is their use? 
Heercises.—Bring a sufficient number of cornstalks into the school- 
room, or, better still, go with the class to a field of standing corn. 
Make notes of your observations in answer to questions on Topics 
for Study. 
References—Farmers’ Bulletin 229. Textbooks on Elementary 
Agriculture. 
Pic. 2.—Distribution of corn roots, showing how late deep cultivation affects the roots. 
ADAPTATION TO COMMUNITY. 
The lessons should be adapted to the particular needs of the dis- 
trict served by the school. In order that the instructor may have 
accurate information as to the extent of corn production and the 
methods used, he should have the students assist him in making 
a survey of corn production. If this survey is made carefully it 
will assist in arousing interest as well as furnishing a basis for 
adaptation to local conditions. The following is suggestive of a 
report form to be used in securing information : 
Corn survey. 
| ~ 
f : Purpose ; 
No. | Name of farmer. | Location | to which | Acres. Yield. Special 
| of field. grown methods. 
F 12886°—18— Bull. 653——_2 
