216 FIELD CROPS 



rowed barley will contain none of these compressed grains. Mix 

 together lots of two-rowed and six-rowed barley which are similar in 

 appearance and let the class determine about what proportion of each 

 was used in the mixture. 



3. Make germination tests of samples of barley. If desired, the 

 strength of germination of the medium and lateral grains of six-rowed 

 barley may be compared. 



4. Examine samples of barley and determine what percentage is 

 pure grain and what trash and weed seeds. 



5. Test planting at different depths, noting differences in germi- 

 nation and growth. 



6. Devote considerable time to practice in scoring and judging 

 samples of barley. 



REFERENCES 



Cyclopedia of American Agriculture, Vol. II, Bailey. 



Farm Crops, Burkett. 



Cereals in America, Hunt. 



Farmers' Cyclopedia of Agriculture, Wilcox and Smith. 



The Small Grains, Carleton. 



Southern Field Crops, Duggar. 



Field Crop Production, Livingston. 



Productive Farm Crops, Montgomery. 



Farmers' Bulletins: 



443. Barley: Growing the Crop. 



518. Winter Barley. 

 Department Bulletins : 



622. Identification of Varieties of Barley. 



