Xll CONTENTS 



PAGB 



p. 68 ; Effect upon quality, p. 68 ; Effect upon 



growth, p. 68. 

 Accumulation of Soil Constituents at Different Stages of 



Growth 70 



Winter Killing yo 



II. THE SOIL AND ITS AMENDMENTSc 



Choice of Soil 71 



Effect of change of soil on yield, p. 72. 



Use of Fertilizers 72 



Indirect fertilization, p. 73 ; Rotation, p. 74 ; Carriers 

 of fertilizing constituents, p. 75; Relative impor- 

 tance of fertilizing constituents, p. 75 ; Amount of 

 fertilizers, p. 76 ; Time and manner of applying 

 fertilizers, p. 77. 



Farm Manure 77 



Mulching, p. 78. 



III. CULTURAL METHODS. 



Time of Plowing 79 



Depth of plowing, p. 80 ; Preparing seed bed with- 

 out plowing, p. 80. 



Time of Sowing 81 



Depth of sowing, p. S;^ ; Drilling compared with 

 broadcasting, p. 84 ; Quantity of seed per acre, 

 p. 85 ; Influence of size of seed, p. 87 ; Treat- 

 ment of seed, p. 89; Wheat seeding machinery, 

 p. 90. 



Cultivation 92 



Rolling, p. 92. 



