xiv TABLE OF CONTENTS 



CHAPTER XIV 



PAGES 



Mineral Matter 135-150 



Fertilizers for com, 138 — Fertilizer mixtures for corn, 

 142 — When it pays to fertilize for com, 144 — Nitrogen, 

 146 — Lime, 147. 



CHAPTER XV 



Beghlating the Water Supply . . • . . 151-157 

 Erosion, 154 — Drainage, 167. 



SECTIOK IV 

 CULTURAL METHODS 



CHAPTER XVI 



Preparation and Planting ...... 161-196 



The old corn stalks, 161 — Time of plowing, 168 — 

 Depth of plowing, 163 — Subsoiling, 166 — Preparation 

 of plowed land, 166 — Planting the seed, methods, 168 



— Sowing corn for forage, 171 — Checking and drilling, 



■ 172— Time of planting, 172 — Rate of planting, 176— ' 

 Adjustment of corn plants, 178 — Economic value of 

 tillers, 179 — Rate of planting on different soils, 180 — 

 Methods of distribution of plants, 181 — Width of rows, 

 182 — Yield of forage, 183 — Effect on composition, 183 



— Choice of a variety, 184 — Preparing seed for plant- 

 ing, 190 — Causes of poor germination, 190 — Germina- 

 tion tests, 192 — Importance of strong vitality, 194 — 

 Grading seed, 195 — Calibrating the planter, 195. 



CHAPTER XVn 



The Principles of Intbrculture 197-213 



Tillage machinery, 197 — Methods of tillage compared, 

 206 — Water-loss from fallow soil, 207 — Evaporation 



