CONTENTS 



XV 



Corn 243 



Sorghums 244 



Lucern or Alfalfa 247 



Other Leguminous Crops ....... 249 



Trees and Shrubs 251 



Potatoes .......... 254 



Miscellaneous 254 



CHAPTER XIII 



The Composition of Drt-f-irm Crops 

 Proportion of Parts of Dry-farm Plants 

 The Water in Dry -farm Crops 

 The Nutritive Substances in Crops 

 Variations in Composition due to Water-supply 

 Climate and Composition .... 

 A Reason for Variation in Composition 

 Nutritive Value of Dry-farm Straw, Hay, and Flour 

 Future Needs ....... 



257-279 

 258 

 262 

 264' 

 267 

 271 

 274 

 275 

 277 



CHAPTER XIV 



Maintaining the Soil-fertility 



The Persi.stent Fertility of Dry-farms . 

 Reasons for Dry-farming Fertility 

 Methods of Conserving Soil-fertility 



280-300 

 . 283 

 . 286 

 . 292 



CHAPTf:R XV 



Implements for Dry-farming . 

 Clearing and Breaking . 

 Plowing ..... 



Making and Maintaining a Soil Mulch 



Subsurface Packing 



Sowing ...... 



Harvesting ..... 



Steam and Other Motive Power 



301-327 

 302 

 306 

 310 

 316 

 317 

 320 

 321 



