256 



INDEX 



Rotation of crops, 

 length of, 233. 

 typical, 231. 



Sampling soils, 163. 

 Sand, 26, 38. 



Fresno, 28. 



grades of, 26. 



Miami, 28. 



Norfolk, 28. 



power to absorb water, 



4i. 43- 



Sandy soils, 27. 

 adapted to early truck, 27. 

 effect of humus on, 43, 



44, 220. 



improving, 43. 

 water-holding power of, 



44- 



Sandy loam, 28. 

 Sapwood, 126. 

 Scythes, 4. 

 Seed leaves, 77. 

 Seed, 130. 



classification of, 85. 



crab, 



drills, 4, 84. 



planting, 81, 83. 

 Seeds, 8. 



depth to plant, 81. 



how they come up, 77- 



how to test, 75. 



which germinate at a tem- 

 perature of 45 degrees, 



74- 



which germinate at a tem- 

 perature of 60 degrees, 



74- 

 Seeds to germinate, 



need air, 72, 73, 75. 



need heat, 73, 75. 



need moisture, 71, 75. 

 Sepals, 129. 

 Shallow cultivation, 14, 15, 



167, 169. 



Share of plow, 93. 

 Shackle of plow, 93. 



Silt, 27, 38. 

 Silt loam, 29. 

 Small fruit soils, 29. 

 Soil, 



a fertile, 141. 



definition of, 23. 



formation of, 30, 237. 



material composing, 147, 

 26. 



mulch, 56. 



temperature, 57, 60. 



testing, 162, 215. 



texture, 37, 142. 



texture important, 142, 



143- 



ventilation, 68, 142. 

 warmed by sun, 58. 

 warmed by conduction, 



58. 



water, 40, 151. 

 Soils, 5, 23. 

 adobe, 30. 

 alfalfa, 29. 

 and the farmer, 5. 

 attitude of toward water, 



40. 



cabbage, 28, 161. 

 canteloupe, 28, 161. 

 capacity for film water, 51. 

 cauliflower, 28. 

 classified, 26. 

 clay, 29. 

 cloddy, 38. 

 close, 38. 

 coarse, 38. 

 compact, 38. 

 corn, 28, 29, 30, 161. 

 cotton, 28, 29, 161. 

 effect of working when 



wet, 26, 41. 

 egg plant, 28. 

 fine, 38. 

 forest, 29. 

 fruit, 27, 29. 

 general farming, 28, 29. 

 grain, 28, 162. 

 grass, 28, 29, 162. 



