365 



INDEX 



Agriculture, Early History of, 1 — 6. 



Agro-Geographical Conditions in Relation to Crop Distribution, 7. 

 Agronomy, 4; development in South Africa, 5; scope, 6. 

 Artichokes, 309. 



Barley, 270; awn types, 272; colour of grain, 272; composition as compared 

 with wheat and oat grain, 275; cultural methods, 275; description and 

 classification, 271; diseases and pests, 276; harvesting, 276; history, 270; 

 hulless barley, 272; production, 270; rotations, 275; soil and climatic 

 requirements, 275; uses, 271; varieties, 273; winter and spring types, 

 273. 



Bean, field, 323; climatic and soil requirements, 324; cultural methods, 324; 

 production and yield, 325; uses, 325; varieties, 325. 



Bean, mung, 326. 



Bean, velvet, 326. 



Brak soils, black brak, 37; brak salts, origin of, 38; harmful effects on 

 plants, soil micro-organisms, 40-41 ; movement in soil, 39 ; nature and 

 composition, 37; reclamation, 41; white brak, 37. 



Buckwheat, 315; climate, 317; composition, 316; cultural methods, 317; 

 description, 315; grain, 316; key to varieties, 315; soils, 317; uses, 316. 



Burnet, 331. 



Carob tree. 352. 



Carpoics, def., 6. 



Carrot, 309. 



Chicory, 337; climate and soil requirements, 337; cultural methods, 338; 

 harvesting, 338; uses, 339; yield, 339. 



Climate, 28. 



Clovers, 332: Alsike, 334: Berseem, 334; Crimson, 333; Red, 332; Subter- 

 ranean, 334; White, 334. 



Cotton, 167; baling, 180; classification according to staple and grading, 180; 

 classification of cotton produced in various countries, 169; climatic 

 requirements, 176, 177; cotton seed products, 181; cultivation, 179; de- 

 scription and varieties, 170, 171; diseases and pests, 181, 182; fibre, 

 172-174; ginning, 179: kapok, 174; manurial requirements, 178; picking, 

 179; planting, 178; seed selection, 175-176; soil preparation, 178; soil re- 

 quirements, 177; South African production, 169; thinning, 179; uni- 

 formity, 180; varieties, 174-175; world's production, 168. 



Cowpeas or Kaffir Beans, 152-157; composition and feeding value, 156; 

 description and classification, 152; diseases and pests, 157; harvesting, 

 154; improvement, 156; planting, 153; rotations, 157; uses, 156. 



Creeping Saltbush, 350. 



Crops, catch, 63; cover, 64: cleaning, 62; cultivated, 64; green manuring, 

 62; hoed, 62; small grain, 62; soiling, 64. 



Cultivators, 26. 



Diseases, barlev, 276; cotton, 181; cowpea or kaffir bean, 157; flax, 315 

 lucerne, 150, 151; maize, 106; mangels, 307; millets, 300; oats, 269 

 potatoes, 137; rye, 280; sorghums, 121; soybeans, 161; sugar cane, 225 

 tobacco, 214-215; wheat, 257. 



Drainage, effects of, 33; system of, 35. 



Drains, depth and distance apart, 35; types of, 34. 



Dry-Land Farming, 340 ; crops suited to. 352 ; useful stock food planti 

 for arid parts, 350. 



