160 Effective Farming 



pare the number of stalks on a plant growing far separated from other 

 plants and one growing in a thickly planted field. Also, make com- 

 parisons of plants growing in light and in heavy soils. How do you 

 account for the differences ? 



REFERENCES 



Bailey, L. H., Cyclopedia of American Agriculture, Vol. II, pp. 660- 



670; 485-494; 559-563; 202-206; 559-563; 534-539; 217-221. 



The Macmillan Co. 



Livingston, George, Field Crop Production. The Macmillan Co. 

 Montgomery, E. G., Productive Farm Crops. The Lippincott Co. 

 Hunt, T. F., Cereals in America. Orange Judd Co. 

 Farmers' Bulletin 139, Emmer: Grain for Semi-arid Regions. 

 Farmers' Bulletin 466, Winter Emmer. 

 Farmers' Bulletin 596, Culture of Winter Wheat in the Eastern United 



States. 

 Farmers' Bulletin 616, Winter-wheat Varieties for the Eastern United 



States. 



Farmers' Bulletin 678, Growing Hard Spring Wheat. 

 Farmers' Bulletin 680, Varieties of Hard Spring Wheat. 

 Farmers' Bulletin 534, Durum Wheat. 

 Farmers' Bulletin 420, Oats : Distribution and Uses. 

 Farmers' Bulletin 424, Oats : Growing the Crop. 

 Farmers' Bulletin 436, Winter Oats for the South. 

 Farmers' Bulletin 756, Culture of Rye in the Eastern Half of the United 



States. 



Special Circular U. S. Dept. of Agriculture, Rye in the Cotton Belt. 

 Farmers' Bulletin 443, Barley : Growing the Crop. 

 Farmers' Bulletin 427, Barley Culture in the Southern States. 

 Farmers' Bulletin 518, Winter Barley. 

 Farmers' Bulletin 417, Rice Culture. 

 Farmers' Bulletin 688, Culture of Rice in California. 

 Farmers' Bulletin 673, Irrigation Practice in Rice Growing. 

 Farmers' Bulletin 507, The Smuts of Wheat, Oats, Barley, and Corn. 

 Farmers' Bulletin 799, Carbon Bisulphid as an Insecticide. 

 Farmers' Bulletin 640, The Hessian Fly. 

 Farmers' Bulletin 657, Chinch Bug. 



Farmers' Bulletin 786, Fall-sown Grains in Maryland and Virginia. 

 Farmers' Bulletin 800, Grains for the Dry Lands of Central Oregon. 

 Farmers' Bulletin 835, How to Detect Outbreaks of Insects and Save 



the Grain Crops. 



