CO \TK.\TS XI 



IT. Acquirement of Nitrogen 



PAC.K 



Acquirement of Free Nitrogen 125 



Influence of root-tubercles on the growth of plants, 

 p. 126; Character of the tubercles, p. 127; Form of 

 the organism, p. 127; Acquirement of nitrogen with- 

 out legumes, p. 128; Dissemination of the bacteria 

 by natural means, p. 129; Need of inoculation, p. 

 130; Methods of inoculation, p. 131; Nitrifying and 

 denitrifying organisms, p. 132; Effect of lime on 

 legumes, p. 133. 



Value 134 



Collateral Reading 138 



CHAPTER VIII 



LEGUMINOUS FORAGE CROPS 



I. Clovers 



Relationships . . 140 



Number and distribution of species, p. 140. 



II. Red Clover 



Name . . .141 



Roots, p. 141; Habit of growth above ground, p. 142; 

 Inflorescence, p. 143; Description of seed, p. 144; 

 Impurities and adulterations, p. 145 ; Germination 

 and viability, p. 146; Varieties, p. 147; Distribution, 

 p. 148; Duration, p. 148; Adaptation, p. 148; Ferti- 

 lizers, p. 149; Seeding, p. 150; Quantity of seed, p. 

 151 ; Weeds, p. 151 ; Clover sickness, p. 151 ; Fungous 

 diseases, p. 152; Insect enemies, p. 153; Harvesting 

 hay, p. 154; Harvesting seed, p. 155; Clover hullers, 

 p. 156; Value, p. 157; Fertilizing constituents per 

 acre, p. 158; Feeding value compared with timothy, 

 p. 158. 



History 159 



