15 



Soil — Continued . . . 

 (Chapters IV-XXXI.) 



Farm ckops 



(Chapt e rs 

 XXXIII.) 



Fertilizers 



Kinds of 

 fertiliz- 

 ers. 



Schedule A. 



Name. 

 Description. 



f C li e ni i c a 1 — 

 PropertieK . c(jni posit ion. 

 [ Physical. 



Place in classifications. 

 Sources. 

 Uses. 



Preparation, care, and han- 

 dling. 

 Application. 



Effects . . 

 Econoni v 



Chemical. 



Physical. 



Biological. 



pjxtent of pro- 

 duction. 



1' e c u n i a r y 

 value. 



Waste and ren- 

 ovation. 



f Washing. 

 Transportation by wind and water. 

 Leaching. 

 Oxidation. 



Cropping— Rotatioit of crops, systems of 

 farming. 



XXXII- 



Having considered in a general way the theory and prac- 

 tice of plant pnjduction as relateil to the structure, physiology, 

 and environment of the plants grown as farm crops, we come 

 next to consider the i)roduction of different kinds of crops 

 more in detail. 



Cereals — Wheat, oats. 



(Trasses— Tim(jtliy, brome grass. 



Legumes — Red clover, alfalfa. 



Tubers — Potatoes. 



Roots — Mangels. 



Sugar plants— Sugar cane, sugar 



beets. 

 Fibers— Cotton, flax, hemp. 

 Stinudants — Tobacco, tea, coffee. 

 ^Medicinal and aromatic plants — 



Ginseng, mint. 

 Miscellaneous— Canaigre, peanuts. 



Classification 



(The elassification and 

 the kinds of plants to be 

 named under each elass 

 will vary according to 

 circumstances.) 



^lethods of improve- 

 ment. 



( Breeding, 

 i Selection. 



