CONTENTS ix 



PAGES 



Soil Analysis and Fertilizer Tests . . o , o . . 54 

 Field tests to determine fertilizer needs, 56. 



Analyses of Various Chemical Fertilizer and Belated Materials . 57 

 Dissolved bone-black, 57 — Bone charcoal, 57 — Ground bone, 

 57 — Dried blood, 58 — Dry ground fish, 58 — Sulfate of ammo- 

 nia, 58 — Sulfate of potash, 58 — Sulfate of magnesia, 58 — Nitrate 

 of Soda, 58 — Muriate of potash, 58 — German potash salts, 58 — 

 Kainit, 59 — Land-plaster or gypsum, 59 — Ashes, unleached, 59 

 — Ashes, leached, 59 — Coal ashes, bituminous, 59 — Coal ashes, 

 anthracite, 59 — Gas-lime, 59 — Seaweed, 60. 



Fertilizer Formulas for Various Crops 60 



Formulas suggested by Maine Experiment Station, 60 — Specific 

 mixtures for different crops, 63. 



Lime for the Land .......... 77 



To determine whether a soil is acid, 77 — Application of lime, 

 78 — Forms of lime, 78 — Fineness of division, 79 — Classification 

 of lime for agricultural purposes, 79 — Other tests for lime, 80. 



CHAPTER IV 



Farm Manures, axd Similar Materials ..... 81-91 



Composition and Characteristics of Manures 81 



Cattle manure, 81 — Stable or horse manure, 81 — Sheep ma- 

 nure, 82 — Hog manure, 82. 



Composition of Manure from Different Animals . . . .82 



Composition of fresh excrement of farm quadrupeds, 8.3 — Com- 

 position of drainage liquors, 83 — Composition of litter, 84 — 

 Poultry manures, 81. 



Utilization of Manures 85 



Rate of production, 85 — Use of manures, 86 — Commercial 

 value, 86 — Losses by leaching, .87. 



Further Analyses of Animal Excrements . ..... 88 



Common barnyard manure, fresh, 88 — Common barnyard 

 manure, moderately rotted, 88 — Same, thoroughly rotted, 88 — 

 Cattle-feces, fresh, 88 — Cattle-urine, fresh, 88 — Horse-feces, 

 fresh, 88 — Horse-urine, fresh, 89 — Sheep-feces, fresh, 89 — 

 Sheep- urine, fresh, 89 — Swine feces, fresh, 89 — Swine-urine, 

 fresh, 89 — Peruvian guano, 89 — Human feces, fresh, 90 — Human 

 urine, fresh, 90 — Sewage, 90. 



Analyses of Fruit and Garden Products^ with reference to their Fer- 

 tilizing Constituents 90 



