XIV CONTENTS 



PAGE 



Inoculation ; Uses of the Crop ; Pollination ; Harvesting for 

 Hay; Feeding Value; Use in Rotations; Advantages and 

 Disadvantages ; Growing Seed ; Sources of Seed ; Seeds. 

 Narrow-leaved Vetch (Vicia angnstifolia). Purple Vetch 

 (Vicia atropurpurea). Woolly-pod Vetch (Vicia dasy- 

 carpa). Scarlet Vetch (Vicia ful gens). Ervil or Black 

 Bitter Vetch (Vicia ervilia}. Narbonne Vetch (Vicia 

 narbonnensis). Horse Bean ( Vicia faba). Bird or Tufted 

 Vetch (Vicia cracca). Tangier Pea (Lathy rus ting itanus}. 



Flat-podded Vetchling (Lathyrus cicera~). Ochrus (La- 

 thyrus ochrus). Comparison of Vetch Species. Fenu- 

 greek (Trigonella fcenum-grcecum). Lupines (Lupinus 

 spp.~). Serradella (Ornithopus sativus). Square-pod 

 Pea (Lotus tetragonolobus~) . 



CHAPTER XXI. COWPEAS 491 



Cowpea (Vigna sinensis} : Botanical Origin ; Agricultural 

 History ; Adaptations ; Importance ; Uses of the Crop ; Varie- 

 tal Distinctions ; Life Period ; Pods and Seeds ; Correlations ; 

 Important Varieties ; Rate and Method of Seeding ; Time of 

 Seeding; Inoculation; Number of Cuttings; Hay; Hay 

 Yields; Feeding Value; Cowpeas in Broadcast Mixtures; 

 Cowpea Mixtures not Broadcasted ; Growing Cowpeas for 

 Seed ; Pollination ; Seed Yield ; Proportion of Seed and 

 Hulls ; Seeds ; Viability ; Root System ; Disease Resistance ; 

 Insect Enemies. 



CHAPTER XXII. SOYBEANS 513 



Agricultural History. Botany. Description. Soil 

 Adaptations. Climatic Adaptations. Importance. De- 

 sirable Characters in Soybean Varieties. Commercial Va- 

 rieties. Preparation of Soil and Cultivation. Rate of 

 Seeding. Time of Seeding. Method of Seeding. Depth 

 of Planting. Inoculation. Life Period. Time to Cut 

 for Hay. Hay Yields. Fertilizers. Soybean Mixtures. 



Silage. Rotations. Feeding Value of Soybean Hay. 

 Seed-production. Pollination. Seed Yield. Seeds. 

 Pests. Breeding. Soybeans and Cowpeas Compared. 



CHAPTER XXIII. OTHER HOT-SEASON ANNUAL LEGUMES . 539 



Lespedeza or Japan Clover : Description ; Agricultural 

 History ; Adaptations ; Culture ; Pasturage Value ; Hay ; 



